CN220125874U - A photocatalytic rotating fluidized cathode gas reduction device - Google Patents

Abstract

The utility model provides a photocatalytic rotary fluidized cathode gas reduction device. A photocatalytic rotary fluidized cathode gas reduction device, including: a reaction chamber, the interior of which is hollow to form a reaction space, and a cation exchange membrane is provided inside the reaction chamber; the cation exchange membrane divides the reaction space into a cathode chamber and an anode chamber; The electron conductor is fixed on the side of the reaction chamber close to the cathode chamber; the electron conductor includes blades, and the blades are located inside the cathode chamber. This utility model uses rotatable blades as electron conductors to construct a photocatalytic rotating fluidized cathode system, which forces the catalyst to collide with the conductor, and the flow trajectory is controllable, which enhances the probability of collision with the conductor and increases the active sites of the catalyst , thus further solving the problems of low catalyst utilization, low gas reduction efficiency, and limited mass transfer inhibition.

Description

A photocatalytic rotating fluidized cathode gas reduction device

Technical field

The utility model belongs to the field of gas reduction, and specifically relates to a photocatalytic rotary fluidized cathode gas reduction device.

Background technique

Currently, traditional gas treatment methods mainly include gas capture and adsorption, electrochemical reduction of gases, and biochemical reduction of gases. However, traditional treatment methods have shortcomings such as high energy consumption of capture technology; slow physical adsorption speed; large chemical adsorption pollution and high cost; low gas adsorption capacity and adsorption selectivity of adsorbent materials; and failure to convert gas into high value-added products.

In order to solve this problem, taking _CO2 as an example: Scholars have proposed electrochemical reduction of _CO2 technology. Electrochemical reduction of _CO2 has many advantages such as low energy consumption, high controllability, less energy consumption, less pollution, etc., and has good Environmentally compatible, it can be driven by renewable electricity to selectively convert _CO2 into target chemical fuels under mild conditions, resulting in a net negative _CO2 carbon footprint emissions. At the same time, intermittent renewable energy can also be stored for a long time in the form of chemical bonds, which has great application potential in the field of large-scale energy storage.

In the electrochemical reduction system, the prerequisite for the redox reaction of the catalyst is that the oxidized or reduced substrate can be adsorbed on the catalyst surface. However, for the CO ₂ reduction reaction that occurs in the liquid phase, due to the solubility of CO ₂ in water is lower, resulting in a lower concentration of _CO2 on the catalyst surface, limiting the reduction efficiency of _CO2 .

In response to the above problems, domestic and foreign scholars have invested a lot of research. Among them, the preparation and modification of catalysts and the reasonable design of reactors have become the focus of research on improving CO ₂ reduction efficiency. The preparation and modification of catalysts are mainly reflected in the CO ₂ reduction catalyst used in the cathode. Current research on catalysts mainly focuses on intrinsic catalysis and does not involve its capacitance. In addition to the preparation and modification of the catalyst, reasonable reaction system design can also enhance the reduction efficiency of CO _2. The existing system structure mainly includes photoelectrochemical fuel cells and intermittent photocatalytic reduction CO ₂ reactions to enhance CO ₂ transmission. Devices, flow electrolytic cells, etc. In addition, fluidization is currently mainly used in solid oxide fuel cells and wastewater treatment devices, and has not yet been used to treat CO ₂ .

In general, the traditional fixed electrochemical reduction gas system mainly has the following shortcomings: (1) Mass transfer is limited; the reaction substrate is mainly diffusion, due to the adhesive between the catalyst and the catalyst, and between the catalyst and the cathode. The reason for existence is the problem of limited mass transfer capacity; (2) low catalyst utilization rate; traditional fixed catalysts are directly sprayed on the cathode, and the reaction only proceeds at the interface, with limited utilization of the reduction catalytic active sites of the catalyst, and there is reduction catalytic activity Shortcomings include fewer sites, small gas reduction reaction area and low local gas concentration; (3) low gas reduction efficiency; traditional stationary reactions will produce more impurities, resulting in low efficiency.

Utility model content

Therefore, embodiments of the present utility model provide a photocatalytic rotary fluidized cathode gas reduction device, which solves the problems of limited mass transfer, low catalyst utilization, and low gas reduction efficiency, and uses rotatable blades as the fluidized cathode. The electronic conductor constructs a photocatalytic rotating fluidized cathode system, which forces the catalyst to collide with the conductor, and the flow trajectory is controllable, which enhances the probability of collision with the conductor and increases the active sites of the catalyst.

The utility model provides a photocatalytic rotary fluidized cathode gas reduction device, which includes:

The reaction chamber is hollow inside to form a reaction space, and a cation exchange membrane is provided inside the reaction cavity; the cation exchange membrane divides the reaction space into a cathode chamber and an anode chamber;

The electron conductor is fixed on the side of the reaction chamber close to the cathode chamber;

The electron conductor includes blades, and the blades are located inside the cathode chamber.

Compared with the existing technology, the technical effects achieved by using this technical solution are as follows: a combination of photocatalysis and rotating fluidized cathode is used to provide electrons required for gas reduction; and blades are used as electron conductors in the cathode chamber. At the same time, it can be used as a solution disturber to promote the flow of cathode catalyst and gas in the chamber. After colliding with the electron conductor, it obtains and stores electrons, and continues to flow to release electrons to combine with the gas adsorbed on the surface of the catalyst, reducing the gas to C1 fuel, thus forcing the catalyst to collide with the conductor, and the flow trajectory is controllable, which enhances the probability of collision with the conductor and increases the active sites of the catalyst, thereby further solving the problems of low catalyst utilization, low gas reduction efficiency, and inhibited mass transfer. Restricted problem.

In a technical solution of the present invention, the reaction chamber is a cylinder; the cation exchange membrane is parallel to the bottom surface of the reaction chamber; in the reaction space, the side close to the bottom surface is the cathode chamber, and the side away from the bottom surface is the anode chamber. room.

Compared with the existing technology, the technical effect achieved by adopting this technical solution is: when the reaction chamber is a cylinder, the blades rotate in the cathode chamber to avoid the accumulation of catalyst in a certain place in the reaction chamber, causing difficulty in circulation. ; At the same time, when the reaction chamber is a cylinder, the blades fully stir the reaction chamber to fully mix the materials in the reaction chamber to prevent the catalyst from being idle in the reaction chamber.

In one technical solution of the present invention, the electron conductor includes a rotating shaft, and the rotating shaft can enable the blades of the electron conductor to perform at least one of the following actions or a combination thereof: rotation, flipping, and sliding.

Compared with the existing technology, the technical effect achieved by adopting this technical solution is that the rotating shaft can enable the active perturbator to perform at least one of the following actions or a combination thereof: rotation, flipping, sliding, allowing the catalyst particles to undergo fluidization treatment, The catalyst is evenly distributed in the cathode cavity to increase the effective reaction area and enhance material transmission. At the same time, the rotation axis uses blades with controllable motion trajectories as electron conductors. The electron conductors actively collide with the catalyst periodically, improving the interaction between the catalyst and the electron conductor. Collision probability; and the rotation rate of the rotating blades can be adjusted according to the number of catalysts to avoid idleness of the cocatalyst.

In one technical solution of the present invention, the blades are porous mesh blades; and/or the blades are made of titanium metal; and/or the number of blades is at least two.

Compared with the existing technology, the technical effects achieved by adopting this technical solution: the blades adopt porous mesh blades, which can allow the catalyst to pass through the pores of the blades, causing the blades to be blocked; the blades are made of titanium metal, which can make the solution disturber and conduction The device is installed on one device, which effectively improves the mass transfer efficiency while reducing costs; the number of blades is at least two, and the blades can make the catalyst flow evenly in the solution, improve the gas reduction ability, and improve efficiency.

In a technical solution of the present invention, the electronic conductor includes a motor, the motor is connected to the rotating shaft, and the motor provides power to the rotating shaft.

Compared with the existing technology, the technical effects achieved by adopting this technical solution are: the motor provides power to the rotating shaft, and the rotating shaft makes the flow trajectory of the blade controllable, enhances the probability of collision with the electronic conductor, and increases the active sites of the catalyst. Thereby further improving the catalyst utilization rate.

In a technical solution of the present invention, the air inlet is embedded in the reaction cavity; the exhaust port is embedded in the reaction cavity.

Compared with the existing technology, the technical effects achieved by adopting this technical solution are: the exhaust port and the air inlet are embedded in the reaction chamber, the gas enters from the cathode chamber and is discharged from the cathode chamber, increasing the gas concentration on the catalyst surface , making the gas reduction spread throughout the entire cathode cavity solution, greatly improving the gas reduction efficiency.

In a technical solution of the present invention, the exhaust port is arranged on the side of the reaction chamber close to the cathode chamber; and/or the air inlet is arranged on the bottom surface. During the operation of the reduction device, in the vertical direction, the exhaust port The height is higher than the height of the air inlet.

Compared with the existing technology, the technical effects achieved by using this technical solution are: the use of bottom in and top out is to make the contact area between the gas and the catalyst in the reaction chamber larger and the contact time longer; The impact will only be concentrated on the top surface of the reaction chamber, and the gas in the tube cannot be completely discharged, which will make part of the reaction chamber inaccessible and reduce the catalytic efficiency.

In a technical solution of the present invention, it also includes: a photocatalytic rotary fluidized cathode gas reduction device including: TiO ₂ -NTs photoanode, the TiO ₂ -NTs photoanode is fixed in the anode chamber; quartz glass, the quartz glass embedded Set with the top surface of the reaction chamber.

Compared with the existing technology, the technical effects achieved by using this technical solution are: TiO ₂ -NTs photoanode and quartz glass, the photoanode is excited by the light energy transmitted from the quartz glass to generate hole and electron pairs, and the photogenerated electrons are in the yin and yang Under the action of the bias voltage between the two poles, it is transmitted to the electron conductor. The fluidized cathode catalyst contacts the conductor to obtain electrons, and at the same time adsorbs the electrons in the solution to form a double layer capacitor; the adsorbed electrons are continuously desorbed with the consumption of photogenerated electrons. And the adsorbed gas content continues to decrease, allowing Ti ₃ C ₂ to re-adsorb gas during the flow process, and then collide with the electron conductor again to complete the process of photogenerated electron charge/discharge - adsorption/desorption of cations - gas adsorption and reduction reaction , convert light energy into electrical energy and chemical energy.

In one technical solution of the present invention, the photocatalytic rotary fluidized cathode gas reduction device includes wires connecting the TiO ₂ -NTs photoanode and the electron conductor.

Compared with the existing technology, the technical effect achieved by using this technical solution is: the wire connects the TiO ₂ -NTs photoanode and the electron conductor, and the photogenerated electrons are transmitted to the electron conductor under the action of the bias voltage between the cathode and the anode, and the flow The cathode catalyst contacts the conductor to obtain electrons, and at the same time absorbs the electrons in the solution to form a double layer capacitor, completing the process of photogenerated electron charging/discharging, cation adsorption/desorption, gas adsorption and reduction reaction, and converting light energy into electrical energy. and chemical energy.

In a technical solution of the present invention, it also includes: an external power supply. The external power supply includes one or more of a photovoltaic electronic energy storage device, a wind energy storage device, a tidal energy energy storage device, and a thermochemical battery.

Compared with the existing technology, the technical effects achieved by using this technical solution are: the external power supply provides electric energy, prompting electrons to be transmitted to the cathode electronic conductor through the external circuit, and the use of photovoltaic electronic energy storage devices, wind energy energy storage devices, and tidal energy energy storage devices. Devices, thermochemical batteries, etc. are used as external power sources to achieve multiple ways of generating electrical energy, with multiple functions, high practicability, and maximum resource conservation.

After adopting the technical solution of the present utility model, the following technical effects can be achieved:

(1) Suppresses the problem of limited mass transfer;

(2) Improve catalyst utilization;

(3) Improve gas reduction efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic plan view of a photocatalytic rotary fluidized cathode gas reduction device provided by an embodiment of the present invention.

Figure 2 is a schematic diagram of a photocatalytic rotating fluidized cathode gas reduction device provided by an embodiment of the present invention.

Explanation of reference symbols:

1: Reaction chamber, 2: TiO ₂ -NTs photoanode, 3: Cation exchange membrane, 4: Quartz glass, 5: Wire, 6: Exhaust hole, 7: Rotating shaft, 8: Electronic conductor, 9: Motor , 10: air inlet, 11: blade, 12: anode chamber, 13 cathode chamber.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present utility model more obvious and easy to understand, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present utility model. , not all examples. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

This embodiment provides a photocatalytic rotating fluidized cathode gas reduction device, including:

Reaction chamber 1 is hollow inside to form a reaction space. A cation exchange membrane 3 is provided inside the reaction chamber 1; the cation exchange membrane 3 divides the reaction space into a cathode chamber 13 and an anode chamber 12;

The electron conductor 8 is fixed on the side of the reaction chamber 1 close to the cathode chamber 13;

The electron conductor 8 includes blades 11 located inside the cathode chamber 13 .

Preferably, a combination of photocatalysis and rotating fluidized cathode is used to provide the electrons required for gas reduction; and the blade 11 is used as the electron conductor 8 in the cathode chamber 13 and can also be used as a solution disturber to promote the cathode catalyst. , the gas flows in the chamber. After it collides with the electron conductor 8, after obtaining and storing electrons, it continues to flow and releases the electrons to combine with the gas adsorbed on the surface of the catalyst, reducing the gas to C1 fuel, thereby forcing the catalyst to conduct The collision with the conductor and the flow trajectory are controllable, which enhances the probability of collision with the conductor and increases the active sites of the catalyst, thereby further solving the problems of low catalyst utilization, low gas reduction efficiency, and limited mass transfer inhibition;

In a stationary electrochemical reaction system, the cocatalyst is fixed on the surface of the cathode. As the thickness of the cocatalyst layer increases, the transport process of substrates and products is restricted, and there is also a mass transfer gradient in the pH of the solution and the diffusion concentration of ions; in addition, , due to the presence of adhesive between the catalyst and the catalyst and between the catalyst and the cathode, the fixed cathode has fewer reduction active sites exposed to the electrolyte and the reduction reaction area is small, which limits the improvement of system performance; in order to solve this problem First, this system uses fluidization technology to hydrophobicize the catalyst particles. Through the rotation of the titanium mesh blades 11, the catalyst is evenly distributed in the cathode cavity. The gas reduction reaction area is expanded by three orders of magnitude, and based on the double-layer structure of the catalyst particles, Functional characteristics: The continuous contact and separation of the catalyst and the electron conductor 8 suppresses the problem of limited mass transfer, diffuses the gas reduction process into the entire solution, increases the gas reduction active sites, and further improves the gas reduction efficiency.

In one embodiment of the utility model, the reaction chamber 1 is a cylinder; the cation exchange membrane 3 is parallel to the bottom surface of the reaction chamber 1; in the reaction space, the side close to the bottom is the cathode chamber 13, and the side away from the bottom is the cathode chamber 13. is the anode chamber 12.

Preferably, when the reaction chamber 1 is a cylinder, the blades 11 rotate in the cathode chamber 13 to avoid accumulation of catalyst in a certain place in the reaction chamber 1, causing difficulty in circulation; at the same time, when the reaction chamber 1 is a cylinder, When, the blades 11 fully stir the reaction chamber 1, so that the materials in the reaction chamber 1 are fully mixed, and the catalyst is prevented from being idle in the reaction chamber 1;

At the same time, the anode cavity is filled with liquid and the cathode cavity is half liquid, which effectively utilizes the shape and area of the container. In the cathode chamber 13, the titanium mesh blades 11 can bring gas into the reaction solution, and their rotation can make the gas and catalyst in the reaction solution. Evenly distributed in the solution, increasing the gas concentration on the catalyst surface, allowing gas reduction to spread throughout the entire cathode cavity solution, greatly improving gas reduction efficiency;

Specifically, taking _CO2 as an example, a 0.1M _Na2SO4 solution _of pH13 is used as the anolyte, and a _{0.1MNa2SO4 solution} of pH1 _containing a bifunctional catalyst is used as the catholyte, which is adjusted with NaOH and _H2SO4 The initial pH value of the electrolyte, the reference electrode is an Ag/AgCl electrode, a 300W xenon lamp and a 365nm cut-off filter are used as the ultraviolet light source, the light intensity is 3.6mW cm ^-2 , as shown in Figure 1, in order to improve the concentration of the cathode electrolyte. CO ₂ concentration, the catholyte is operated with the chamber not full of liquid. The CO ₂ gas injected in the upper part of the cathode chamber is brought into the lower electrolyte by the rotating titanium mesh blades 11. When the rotating blades 11 are running, the catalyst continuously interacts with the electrolyte. The electron conductor 8 contacts and detaches, and the electrons stored inside the bifunctional catalyst combine with the CO ₂ adsorbed on the catalyst surface and the H ⁺ migrated from the anode at the reduction active site, and the reduction reaction of CO ₂ is carried out. At this time, Na ⁺ is desorbed from the bifunctional catalyst. When the self-stored electrons are consumed, they contact the cathode electron conductor 8 again for charging, thereby forming a complete cycle and continuously reducing CO ₂ to C1 products. The CO ₂ reduction reaction occurring on the surface of the bifunctional catalyst can be described as equations 1-1 to 1-5:

TiO ₂ +hv→TiO ₂ (h ⁺ +e ^- ) (1-1)

Ti ₃ C ₂ +xNa ⁺ +xe ^- →Na _x Ti ₃ C ₂ (1-2)

Na _x Ti ₃ C ₂ →Ti ₃ C ₂ +xNa ⁺ +xe ^- (1-3)

CO ₂ +2H ⁺ +2e ^- →CO+H ₂ O (1-4)

CO ₂ +8H ⁺ +8e ^- →CH ₄ +2H ₂ O (1-5)

In one embodiment of the present invention, the electron conductor 8 includes a rotating shaft 7 . The rotating shaft 7 enables the blades 11 of the electron conductor 8 to perform at least one of the following actions or a combination thereof: rotation, flipping, and sliding.

Preferably, the rotating shaft 7 can enable the active perturbator to perform at least one of the following actions or a combination thereof: rotation, flipping, sliding, fluidizing the catalyst particles, allowing the catalyst to be evenly distributed in the cathode cavity, and increasing the effective reaction area. , enhance material transmission, and at the same time, the rotating shaft 7 uses blades 11 with controllable motion trajectories as the electron conductor 8. The electron conductor 8 actively collides with the catalyst periodically, increasing the probability of collision between the catalyst and the electron conductor 8; and it can be adjusted according to the number of catalysts The rotation rate of the rotating blade 11 is adjusted to prevent the cocatalyst from being idle. At the same time, the rotating shaft 7 can also be used for monitoring potential and current signals.

In one embodiment of the present invention, the blades 11 are porous mesh blades 11; and/or the blades 11 are made of titanium metal; and/or the number of the blades 11 is at least two.

Preferably, the blades 11 adopt porous mesh blades 11, which can allow the catalyst to pass through the aperture of the blades 11, causing the blades 11 to be blocked; the blades 11 are made of titanium metal, which allows the solution disturber and conductor to be placed on one device, reducing the While reducing costs, it effectively improves the mass transfer efficiency; the number of blades 11 is at least two, and the blades 11 can make the catalyst flow evenly in the solution, improve the gas reduction ability, and improve the efficiency;

The utility model uses rotating titanium mesh blades 11 with controllable motion trajectories as the cathode electron conductor 8 to construct a photocatalytic rotating fluidized cathode system. The electron conductor 8 actively collides with the catalyst periodically to improve the interaction between the catalyst and the electron conductor 8. Collision probability, and the rotation rate of the rotating blades 11 can be adjusted according to the number of catalysts to avoid idleness of the cocatalyst.

Specifically, taking CO ₂ as an example, the rotating titanium mesh blade 11 is used as the electron conductor 8 and the perturbator of the solution, which enhances the collision probability between the catalyst and the electron conductor 8 and improves the catalyst utilization rate. Experiments show that the rotation of the blade 11 can make the catalyst flow evenly in the solution. Under the conditions of a rotation speed of 60 rpm and a catalyst loading of 200 mg, the collision probability between the catalyst and the conductor is about 17.7%. The formation of a liquid film on the surface of the titanium mesh brings CO ₂ in the top cavity into the solution. When the rotation speed increases from 20 rpm to 60 rpm, the CO ₂ concentration in the solution increases by 75%. Under the same conditions without external bias, compared with the fluid reduction CO ₂ system, the CH ₄ production of the photocatalytic rotary fluidized cathode system increased by 7.4 times, the CO2 reduction active sites increased by 4 times, and the CO ₂ The reduction ability has been greatly improved, and FE _CH4 has been improved by 6 times.

In one embodiment of the present invention, the electronic conductor 8 includes a motor 9 , the motor 9 is connected with the rotating shaft 7 , and the motor 9 provides power for the rotating shaft 7 .

Specifically, the motor 9 provides power to the rotating shaft 7, which makes the flow trajectory of the blade 11 controllable, enhances the probability of collision with the electron conductor 8, increases the active sites of the catalyst, and thereby further improves the catalyst utilization rate;

Preferably, the 57-type stepper motor 9 is selected to drive the rotating shaft, which can prolong the life of the rotating shaft of the motor 9 and at the same time maximize the flow efficiency of the active perturbator in the catalyst particles in the cathode chamber 13 .

In one embodiment of the present invention, the air inlet is embedded in the reaction chamber 1; the exhaust port is embedded in the reaction chamber 1.

Preferably, the exhaust port and the air inlet are embedded in the reaction chamber 1, and the gas enters from the cathode chamber 13 and is discharged from the cathode chamber 13 to increase the gas concentration on the catalyst surface and make the gas reduction spread throughout the entire cathode chamber solution. , greatly improving gas reduction efficiency.

In one embodiment of the present invention, the exhaust port is provided on the side of the reaction chamber 1 close to the cathode chamber 13; and/or the air inlet is provided on the bottom surface. During the operation of the reduction device, the exhaust port is vertically discharged. The height of the air port is higher than the height of the air inlet.

Specifically, the use of bottom in and top out is to make the contact area between the gas and the catalyst in reaction chamber 1 larger and the contact time longer; if the top in and bottom out are used, the gas will only be concentrated on the top surface of reaction chamber 1 due to the influence of gravity. The gas in the tube cannot be completely discharged, which will make part of the reaction chamber inaccessible and reduce the catalytic efficiency.

In one embodiment of the present invention, it also includes: a photocatalytic rotating fluidized cathode gas reduction device including: TiO ₂ -NTs photoanode 2, TiO ₂ -NTs photoanode 2 fixed in the anode chamber 12; quartz glass 4. The quartz glass 4 is embedded on the top surface of the reaction chamber 1.

Preferably, TiO ₂ -NTs photoanode 2 and quartz glass 4, the photoanode is excited by the light energy transmitted from the quartz glass 4 to generate hole and electron pairs, and the photogenerated electrons are transmitted to the electrons under the action of the bias between the cathode and the cathode. On the conductor 8, the fluidized cathode catalyst contacts the conductor to obtain electrons and at the same time adsorbs the electrons in the solution to form a double layer capacitor; the adsorbed electrons are continuously desorbed with the consumption of photogenerated electrons, and the adsorbed gas content is continuously reduced, making Ti ₃ C ₂ can re-adsorb gas during the flow process, and then collide with the electron conductor 8 again to complete the process of photogenerated electron charging/discharging-adsorption/desorption of cations-gas adsorption and reduction reactions, converting light energy into electrical energy and chemical energy. able.

In one embodiment of the present invention, the photocatalytic rotary fluidized cathode gas reduction device includes a wire 5 connecting the TiO ₂ -NTs photoanode 2 and the electron conductor 8 .

Preferably, the wire 5 connects the TiO ₂ -NTs photoanode 2 and the electron conductor 8. The photogenerated electrons are transmitted to the electron conductor 8 under the action of the bias between the cathode and the anode. The fluidized cathode catalyst contacts the conductor to obtain the electrons. At the same time, the electrons in the solution are absorbed to form a double-layer capacitor, which completes the process of photogenerated electron charging/discharging, cation adsorption/desorption, gas adsorption and reduction reaction, and converts light energy into electrical energy and chemical energy.

In one embodiment of the present invention, it also includes: an external power supply. The external power supply includes one or more of a photovoltaic electronic energy storage device, a wind energy storage device, a tidal energy energy storage device, and a thermochemical battery.

Preferably, an external power supply provides electric energy to prompt electrons to be transmitted to the cathode electronic conductor 8 through an external circuit. Photovoltaic electronic energy storage devices, wind energy energy storage devices, tidal energy energy storage devices, thermochemical batteries, etc. are used as external power sources to achieve multiple modes. Generates electrical energy, has many functions, is highly practical, and saves resources to the greatest extent. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the spirit of the technical solutions of the various embodiments of the present invention. and scope.

Claims (10)

1. A photocatalytic rotary fluidized cathode gas reduction device, comprising:

the reaction device comprises a reaction cavity (1), wherein a reaction space is formed by the hollow inside of the reaction cavity (1), and a cation exchange membrane (3) is arranged inside the reaction cavity (1); the cation exchange membrane (3) divides the reaction space into a cathode chamber (13) and an anode chamber (12);

an electron conductor (8), wherein the electron conductor (8) is fixed at one side of the reaction cavity (1) close to the cathode cavity (13);

wherein the electron conductor (8) comprises a blade (11), the blade (11) being located inside the cathode chamber (13).

2. The photocatalytic rotary fluidized cathode gas reduction device according to claim 1, characterized in that,

the reaction cavity (1) is a cylinder; the cation exchange membrane (3) is parallel to the bottom surface of the reaction cavity (1);

in the reaction space, the cathode chamber (13) is arranged on the side close to the bottom surface, and the anode chamber (12) is arranged on the side far away from the bottom surface.

3. The photocatalytic rotary fluidized cathode gas reduction device according to claim 1, characterized in that the electron conductor (8) comprises: -a rotation shaft (7), said rotation shaft (7) enabling said blades (11) of said electronic conductor (8) to perform at least one of the following actions, or a combination thereof: rotating, overturning and sliding.

4. The photocatalytic rotary fluidized cathode gas reduction device according to claim 1, characterized in that,

the blades (11) are porous net-shaped blades (11); and/or

The blade (11) is made of titanium metal; and/or

The number of the blades (11) is at least two.

5. A photocatalytic rotary fluidized cathode gas reduction device according to claim 3, characterized in that the electron conductor (8) comprises:

and the motor (9), the motor (9) is connected with the rotating shaft (7), and the motor (9) provides power for the rotating shaft (7).

6. The photocatalytic rotary fluidized cathode gas reduction device according to claim 2, characterized in that,

the air inlet is embedded on the reaction cavity (1);

and the exhaust port is embedded on the reaction cavity (1).

7. The photocatalytic rotary fluidized cathode gas reduction device according to claim 6, characterized in that,

the exhaust port is arranged on the side surface of the reaction cavity (1) close to the cathode cavity (13); and/or

The air inlet is arranged on the bottom surface, and the height of the air outlet is higher than that of the air inlet in the vertical direction in the operation process of the reduction device.

8. The photocatalytic rotary fluidized cathode gas reduction device according to claim 1, characterized in that the photocatalytic rotary fluidized cathode gas reduction device comprises:

TiO ₂ -NTs photo-anode (2), said TiO ₂ -NTs photo-anode (2) fixed within the anode chamber (12);

and the quartz glass (4) is embedded with the top surface of the reaction cavity (1).

9. The photocatalytic rotary fluidized cathode gas reduction device according to claim 8, further comprising:

a wire (5), the wire (5) being connected to the TiO ₂ -NTs photo-anode (2) and said electron conductor (8).

10. The photocatalytic rotary fluidized cathode gas reduction device according to claim 1, further comprising an external power source comprising one or more of a photovoltaic electronic energy storage device, a wind energy storage device, a tidal energy storage device, a thermochemical battery.