KR102456115B1 - Method for preparing the catalyst support using photo acid generator and method for preparing the catalyst comprising the same - Google Patents

Abstract

The present invention comprises the steps of (a) preparing a mixed solution containing an inorganic precursor, a surfactant, and a photo acid generator (PAG); (b) curing the mixed solution to prepare a catalyst structure; and (c) preparing a catalyst support by heat-treating the catalyst structure. The present invention has an effect of high porosity by accelerating the curing rate by ultraviolet (UV) light, fixing the surfactant for pore formation, and preventing the collapse of pores by adding a photoacid generator.

Description

Method for producing a catalyst carrier using a photo-acid generator and a method for producing a catalyst comprising the same

The present invention relates to a method for preparing a catalyst carrier using a photo-acid generator and a method for preparing a catalyst comprising the same, and more particularly, to a photo-acid generator to accelerate curing rate by ultraviolet (UV) light, and to form pores It relates to a method for preparing a catalyst carrier having high porosity by fixing a surfactant for the method and a method for preparing a catalyst comprising the same.

Volatile Organic Compounds (VOCs) are the main emissions from industrial solvents. Representative examples of volatile organic compounds include benzene, toluene, xylene (also called xylene), propylene glycol methyl ether acetate (PGMEA), isopropyl alcohol (IPA), ethanol, methanol ( Methanol), formaldehyde, hexane, and the like. The volatile organic compound is known as a compound harmful to the human body that not only causes environmental problems such as smog, but also causes various diseases including cancer. As regulations on air hazardous emissions from industrial sites are strengthened, the need for technology that can more closely manage and treat volatile organic compounds is increasing.

As a conventional method for removing the volatile organic compound, an adsorption method, a direct combustion method, a catalytic oxidation method, and the like are used. The adsorption method is a method of adsorbing a volatile organic compound to an adsorbent. However, the adsorption method has a limitation in adsorption capacity, requires regeneration of the adsorbent, and generates secondary pollutants. The direct combustion method is a method of thermally decomposing a volatile organic compound by heating it to a high temperature. However, the direct combustion method has disadvantages in that the cost required for high-temperature operation is very high, and pollutants such as NOx are generated.

In addition, catalytic oxidation is a method of decomposing volatile organic compounds into non-hazardous substances (water or carbon dioxide) using catalysis. Unlike the previous two methods, the catalytic oxidation method can be operated at a relatively low temperature and has the advantage of maintaining semi-permanent decomposition performance because it uses catalysis. However, the past catalytic oxidation method had a limitation in using a catalyst based on a noble metal. Although the noble metal catalyst has excellent volatile organic compound removal performance, the precious metal, which is a raw material for the catalyst, makes it difficult to operate the catalytic oxidation process due to its very high price. Raw material prices are high because their reserves are limited. Therefore, it is necessary to develop a catalyst to secure the economic feasibility and long-term operation of the catalytic oxidation process.

An object of the present invention is to accelerate the curing rate by ultraviolet (UV) light by adding a photoacid generator, to fix the surfactant for pore formation, and to prevent the collapse of pores, and a method for preparing a catalyst carrier with high porosity and the same It provides a method for preparing a catalyst comprising the.

According to an aspect of the present invention, (a) preparing a mixed solution containing an inorganic precursor (Inorganic precursor), a surfactant and a photo acid generator (PAG); (b) curing the mixed solution to prepare a catalyst structure; and (c) preparing a catalyst support by heat-treating the catalyst structure.

Step (a) comprises the steps of (a-1) preparing a precursor sol comprising the inorganic precursor and the surfactant; and (a-2) preparing a mixed solution containing the precursor sol and the photoacid generator.

The inorganic precursor is 1,2-Bis(triethoxysilyl)ethane, 1,2-Bis(trimethoxysilyl)ethane, 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl, 1,4-Bis(triethoxysilyl)benzene , 1,3-Bis(triethoxysilyl)benzene, Trimethoxymethylsilane, Trimethoxy(propyl)silane, Trimethoxy(octyl)silane, Trimethoxy(octadecyl)silane, Triethoxy(ethyl)silane, Triethoxyphenylsilane, Dimethoxydimethylsilane, Diethoxydimethylsilane, Tetraethyl orthosilicate, Tetramethyl orthosilicate, Titanium (IV) may include one or more selected from the group consisting of ethoxide, titanium(IV) butoxide, titanium(IV) propoxide, aluminum isopropoxide, aluminum ethoxide, and aluminum-tri-sec-butoxide.

The photo-acid generator may include at least one selected from the group consisting of an ionic photo-acid generator, a non-ionic photo-acid generator, and a polymer-based photo-acid generator.

The photoacid generator is triphenylsulfonium triflate (TPS), (4-tert-Butylphenyl)diphenylsulfonium triflate, (4-Fluorophenyl)diphenylsulfonium triflate, N-Hydroxynaphthalimide triflate (NHN), Tris(4-tert-butylphenyl)sulfonium triflate, Bis ( It may include one or more selected from the group consisting of 4-tert-butylphenyl)iodonium perfluoro-1-butanesulfonate and Boc-methoxyphenyldiphenylsulfonium triflate.

The surfactant may include at least one selected from the group consisting of ionic surfactants and nonionic surfactants.

The surfactant is polyethylene oxide, polypropylene oxide, polytetramethylene oxide, alkoxy polyethylene oxide (Alkoxyl poly (ethylene oxide), wherein the alkoxy group has C1 to C9), polyalkylene oxide (Poly (alkylene oxide), wherein The number of carbon atoms in the alkylene group is C1 to C9), (EO)x-(PO)y-(EO)x Triblock Copolymers (x and y are each independently one of integers from 1 to 110, EO and PO are ethylene oxide and propylene oxide, respectively), and hexadecyl(trimethyl)ammonium bromide (CTAB) may include at least one selected from the group consisting of.

The surfactant may include poly(ethylene glycol)-block-poly (propylene glycol)-block-poly(ethylene glycol) copolymer (PEG-PPG-PEG).

The precursor sol further comprises a solvent, and the solvent is at least one selected from the group consisting of water, toluene, chloroform, hexane, ethanol, xylene, butanol, propanol and 4-methyl-2-pentanone. may include

The catalyst carrier may be porous.

The size of the internal pores of the catalyst carrier may be 0.1 to 100 nm.

The shape of the internal pores of the catalyst carrier may be any one selected from the group consisting of a spherical shape, a cylindrical shape, a plate shape, and a three-dimensional network shape.

In step (b), the curing may be UV curing.

Step (b) may be performed for 1 minute to 60 minutes.

Step (c) comprises the steps of (c-1) drying the catalyst structure to prepare a catalyst structure powder; and (c-2) heat-treating the catalyst structure powder to prepare a catalyst carrier.

Step (c-1) may be performed at a temperature of 30 °C to 150 °C.

Step (c-2) may be performed one or more times at a temperature of 200° C. to 600° C. for 1 hour to 10 hours.

According to another aspect of the present invention, (a) preparing a mixed solution containing an inorganic precursor (Inorganic precursor), a surfactant and a photo acid generator (PAG); (b) curing the mixed solution to prepare a catalyst structure; (c) heat-treating the catalyst structure to prepare a catalyst carrier; and (d) preparing a catalyst by supporting a metal on the catalyst carrier.

The metal may include at least one selected from the group consisting of Ag, Au, Pt, Fe, Co, Al, Ni, Ru, Rh, Ir, Pd, Cu, Mn, Zn, and alloys thereof.

The catalyst may be for removing volatile organic compounds (VOCs).

In the method for preparing a catalyst carrier of the present invention and a method for preparing a catalyst including the same, by adding a photoacid generator, the curing rate by ultraviolet (UV) light is accelerated, the surfactant for pore formation is fixed, and the pore collapse is prevented. It has a high porosity effect.

1 is a flowchart of a method for preparing a catalyst carrier and a method for preparing a catalyst including the same according to an embodiment of the present invention.
2 is a schematic diagram illustrating a method for preparing a catalyst carrier and a method for preparing a catalyst comprising the same according to an embodiment of the present invention.
3 is a nitrogen adsorption test result of the catalyst prepared according to Example 2 and Comparative Example 2.
4 is a result of comparing the performance of the catalyst prepared according to Example 2 and Comparative Example 2.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention.

However, the following description is not intended to limit the present invention to specific embodiments, and when it is determined that a detailed description of a related known technology may obscure the gist of the present invention in describing the present invention, the detailed description thereof will be omitted. .

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, element, or combination thereof described in the specification exists, but is one or more other features or It is to be understood that the existence or addition of numbers, steps, acts, elements, or combinations thereof, is not precluded in advance.

In addition, terms including ordinal numbers such as first, second, etc. to be used hereinafter may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

1 is a flowchart of a method for preparing a catalyst carrier and a method for preparing a catalyst comprising the same according to an embodiment of the present invention, and FIG. 2 is a method for preparing a catalyst carrier according to an embodiment of the present invention and a catalyst comprising the same. It is a schematic diagram of a manufacturing method of Hereinafter, a method for preparing a catalyst carrier of the present invention and a method for preparing a catalyst comprising the same will be described in detail with reference to FIGS. 1 and 2 . However, this is provided as an example, and the present invention is not limited thereto, and the present invention is only defined by the scope of the claims to be described later.

First, a mixed solution containing an inorganic precursor, a surfactant, and a photo acid generator (PAG) is prepared (step a).

Step (a) comprises the steps of (a-1) preparing a precursor sol comprising the inorganic precursor and the surfactant; and (a-2) preparing a mixed solution containing the precursor sol and the photoacid generator.

The inorganic precursor is 1,2-Bis(triethoxysilyl)ethane, 1,2-Bis(trimethoxysilyl)ethane, 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl, 1,4-Bis(triethoxysilyl)benzene , 1,3-Bis(triethoxysilyl)benzene, Trimethoxymethylsilane, Trimethoxy(propyl)silane, Trimethoxy(octyl)silane, Trimethoxy(octadecyl)silane, Triethoxy(ethyl)silane, Triethoxyphenylsilane, Dimethoxydimethylsilane, Diethoxydimethylsilane, Tetraethyl orthosilicate, Tetramethyl orthosilicate, Titanium (IV) ethoxide, titanium(IV) butoxide, titanium(IV) propoxide, aluminum isopropoxide and at least one selected from the group consisting of aluminum ethoxide and aluminum-tri-sec-butoxide.

The inorganic precursor may include a metal alkoxide or a hydroxyl group.

The inorganic precursor may be in a state in which the number of functional groups causing a sol-gel reaction is controlled. For example, in the case of a metal oxide, a structure of the M-O-M type is formed by a condensation reaction of -OH or -OR functional groups as shown in Scheme 1 below. It is necessary to arbitrarily control the amount of the functional group that causes the reaction.

[Scheme 1]

M(OR) _n + mXOH → M(OR) _nm (OX) _m + mROH

In Scheme 1,

M is a metal atom,

R is a C1 to C20 alkyl group,

n is the number of repeats of the repeating unit.

① When X=H: Hydrolysis

M-OR + HO-H → M-OH + ROH

② When X=M: Condensation

M-OR + HO-M → M-O-M + ROH

The photo-acid generator may include at least one selected from the group consisting of an ionic photo-acid generator, a non-ionic photo-acid generator, and a polymer-based photo-acid generator.

The photoacid generator is triphenylsulfonium triflate (TPS), (4-tert-Butylphenyl)diphenylsulfonium triflate, (4-Fluorophenyl)diphenylsulfonium triflate, N-Hydroxynaphthalimide triflate (NHN), Tris(4-tert-butylphenyl)sulfonium triflate, Bis ( It may include one or more selected from the group consisting of 4-tert-butylphenyl)iodonium perfluoro-1-butanesulfonate and Boc-methoxyphenyldiphenylsulfonium triflate.

The surfactant may include at least one selected from the group consisting of ionic surfactants and nonionic surfactants.

The surfactant is polyethylene oxide, polypropylene oxide, polytetramethylene oxide, alkoxy polyethylene oxide (Alkoxyl poly (ethylene oxide), wherein the alkoxy group has C1 to C9), polyalkylene oxide (Poly (alkylene oxide), wherein The number of carbon atoms in the alkylene group is C1 to C9), (EO)x-(PO)y-(EO)x Triblock Copolymers (x and y are each independently one of integers from 1 to 110, EO and PO are ethylene oxide and propylene oxide, respectively), and hexadecyl(trimethyl)ammonium bromide (CTAB) may include at least one selected from the group consisting of, preferably poly(ethylene glycol) )-block-poly (propylene glycol)-block-poly(ethylene glycol) copolymer (PEG-PPG-PEG) may be included.

The surfactant may serve as a pore generating material for forming pores.

The precursor sol further comprises a solvent, and the solvent is at least one selected from the group consisting of water, toluene, chloroform, hexane, ethanol, xylene, butanol, propanol and 4-methyl-2-pentanone. It may contain, preferably water.

Next, the mixed solution is cured to prepare a catalyst structure (step b).

In step (b), the curing may be UV curing.

Step (b) may be carried out for 1 minute to 60 minutes, preferably for 5 minutes to 20 minutes.

The photoacid generator contained in the mixed solution generates an acid when exposed to ultraviolet (UV) light, and when an acid is generated in the solution through such a reaction, the acid acts as a catalyst for the reaction to form a gel and receives UV light. As the pH of the part is lowered, the curing reaction rate between sols is increased and curing occurs.

Finally, the catalyst structure is heat-treated to prepare a catalyst carrier (step c).

Step (c) comprises the steps of (c-1) drying the catalyst structure to prepare a catalyst structure powder; and (c-2) heat-treating the catalyst structure powder to prepare a catalyst carrier.

Step (c-1) may be performed at a temperature of 30 °C to 150 °C.

Step (c-2) may be performed one or more times for 1 hour to 10 hours at a temperature of 200° C. to 600° C., preferably performed twice or more for 3 hours to 7 hours at a temperature of 300° C. to 500° C. and more preferably at a temperature of 350° C. to 450° C. for 4 hours to 6 hours or more.

The catalyst carrier may be porous.

The size of the internal pores of the catalyst carrier may be 0.1 to 100 nm.

The shape of the internal pores of the catalyst carrier may be any one selected from the group consisting of a spherical shape, a cylindrical shape, a plate shape, and a three-dimensional network shape.

The catalyst carrier refers to a porous material in which pores of several to several tens of nm are formed in a ceramic material, and the catalyst carrier may be formed into a three-dimensionally formed structure such as a honeycomb or a plate-like structure and used.

The structure of the molded structure may be any one selected from the group consisting of a sphere, a pellet, a three-dimensional network, a honeycomb, and a column shape.

In the present invention, by adding a photoacid generator, the surfactant for forming pores can be fixed, and the specific surface area is improved by preventing the collapse of pores due to the decomposition of the surfactant during the heat treatment (calcination) process, thereby improving the porosity in the catalyst carrier. There is an effect that a wide catalyst carrier (porous support) can be prepared. In addition, it is possible to accelerate the curing rate by ultraviolet (UV).

In addition, the present invention comprises the steps of (a) preparing a mixed solution containing an inorganic precursor (Inorganic precursor), a surfactant and a photo acid generator (PAG); (b) curing the mixed solution to prepare a catalyst structure; (c) heat-treating the catalyst structure to prepare a catalyst carrier; and (d) preparing a catalyst by supporting a metal on the catalyst carrier.

The metal may include at least one selected from the group consisting of Ag, Au, Pt, Fe, Co, Al, Ni, Ru, Rh, Ir, Pd, Cu, Mn, Zn, and alloys thereof.

The catalyst may be for removing volatile organic compounds (VOCs).

[Example]

Hereinafter, a preferred embodiment of the present invention will be described. However, this is for illustrative purposes and the scope of the present invention is not limited thereby.

Example 1: Preparation of a catalyst carrier containing a photoacid generator

After adding 5 g of Pluronic P-123 (PEG-PPG-PEG, sigma aldrich) as a surfactant to the reactor, 137.6 g of distilled water and 8.7 g of 35 wt% HCl were respectively added and stirred for 1 hour to uniformly mix, 10.5 g of TEOS (Tetraethyl orthosilicate, sigma aldrich), which is an inorganic precursor, was slowly added to the reactor, and the reaction was carried out at 40° C. for 20 hours. Thereafter, the reactant was filtered under reduced pressure, and 2 g of the precursor sol was dissolved in 50 g of distilled water to prepare a precursor sol solution.

Next, a photoacid generator (triphenylsulfonium triflate, sigma aldrich) was dissolved in the precursor sol solution at a concentration of 3wt% relative to the solid content (TEOS sol) to prepare a mixed solution. Thereafter, the mixed solution was irradiated with ultraviolet (UV) light for 10 minutes to prepare a catalyst structure, and the catalyst structure was vacuum dried to obtain a catalyst structure powder. Finally, the catalyst structure powder was calcined at 400° C. for 5 hours to prepare a porous catalyst carrier.

Example 2: Preparation of VOC Removal Catalyst

A mixed solution was prepared by dissolving 1 g of the catalyst carrier prepared according to Example 1 and the Pt precursor Chloroplatinic acid hydrate (Sigma aldrich) in 40 ml of water, and the mixed solution was reacted for 5 hours to support Pt on the surface of the catalyst carrier. . At this time, the mixed solution was prepared by dissolving so that the ratio of the Pt precursor to the catalyst carrier was 1 wt%.

Then, 0.2 g of sodium borohydride (Sigma aldrich) as a reducing agent was slowly added, and the reaction was continued for 12 hours to reduce the supported Pt, and then reduced pressure and dried to prepare a VOC removal catalyst.

Comparative Example 1: Preparation of a catalyst carrier that does not contain a photoacid generator

A catalyst carrier was prepared in the same manner as in Example 1, except that in Example 1, the photoacid generator (triphenylsulfonium triflate) was dissolved in the precursor sol solution to prepare a mixed solution, and the photoacid generator (triphenylsulfonium triflate) was not dissolved. prepared.

Comparative Example 2: Preparation of VOC removal catalyst

A catalyst was prepared in the same manner as in Example 2, except that the catalyst support prepared according to Comparative Example 1 was used instead of the catalyst support prepared according to Example 1 in Example 2.

[Test Example]

Test Example 1: Analysis of the specific surface area of the catalyst

3 is a nitrogen adsorption test result of the catalyst prepared according to Example 2 and Comparative Example 2. The porosity and specific surface area were calculated through BET plot with reference to the results of FIG. 3 , and the results are shown in Table 1 below.

Example 2 (using PAG) Comparative Example 2 (without PAG) Example 1 (carrier) Platinum (metal) Comparative Example 1 (carrier) Platinum (metal) BET Surface Area 511 m ² /g 359 m ² /g Pore Volume 0.45 cm ³ /g 0.37 cm ³ /g

3 and Table 1, the catalyst according to Example 2 shows a higher nitrogen adsorption amount compared to the catalyst according to Comparative Example 2, which is the inside of the catalyst support according to Example 1 compared to the catalyst support according to Comparative Example 1. This means that more pores are formed in the In addition, it was confirmed that Example 2 (using PAG) had higher porosity and specific surface area than Comparative Example 2 (PAG was not used).

Test Example 2: Toluene removal performance analysis

4 is a result of comparing the performance of the catalyst prepared according to Example 2 and Comparative Example 2. In order to check the VOC removal performance, 0.2 g of the catalyst prepared according to Example 2 and Comparative Example 2 was put into a glass tube reactor, respectively, and an air gas containing 100 ppm toluene was flowed at 200 mL/min, and the toluene concentration according to the catalyst reaction temperature was measured by gas chromatography and the toluene removal rate was calculated using the following [Equation 1].

[Equation 1]

Removal rate (%) = (Input concentration - Discharge concentration)/ (Input concentration) X 100

4, the catalyst according to Example 2 shows a higher toluene removal rate at the same temperature than the catalyst according to Comparative Example 2 after 100° C. when toluene starts to be decomposed, which means that the catalyst of Example 2 is more It means that it has high toluene removal performance.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

Claims (20)

(a-1) preparing a precursor sol comprising an inorganic precursor and a surfactant;
(a-2) preparing a mixed solution containing the precursor sol and a photoacid generator;
(b) curing the mixed solution to prepare a catalyst structure; and
(c) heat-treating the catalyst structure to prepare a catalyst carrier;
In step (b), the curing is UV curing, the method for producing a catalyst carrier. delete According to claim 1,
The inorganic precursor is 1,2-Bis(triethoxysilyl)ethane, 1,2-Bis(trimethoxysilyl)ethane, 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl, 1,4-Bis(triethoxysilyl)benzene , 1,3-Bis(triethoxysilyl)benzene, Trimethoxymethylsilane, Trimethoxy(propyl)silane, Trimethoxy(octyl)silane, Trimethoxy(octadecyl)silane, Triethoxy(ethyl)silane, Triethoxyphenylsilane, Dimethoxydimethylsilane, Diethoxydimethylsilane, Tetraethyl orthosilicate, Tetramethyl orthosilicate, Titanium (IV) ethoxide, Titanium (IV) butoxide, Titanium (IV) propoxide, Aluminum isopropoxide, Aluminum ethoxide and Aluminum-tri-sec-butoxide A method for preparing a catalyst carrier comprising at least one selected from the group consisting of . According to claim 1,
The photo-acid generator comprises at least one selected from the group consisting of an ionic photo-acid generator, a non-ionic photo-acid generator, and a polymer-based photo-acid generator. According to claim 1,
The photoacid generator is triphenylsulfonium triflate (TPS), (4-tert-Butylphenyl)diphenylsulfonium triflate, (4-Fluorophenyl)diphenylsulfonium triflate, N-Hydroxynaphthalimide triflate (NHN), Tris(4-tert-butylphenyl)sulfonium triflate, Bis ( A method for preparing a catalyst carrier, comprising at least one selected from the group consisting of 4-tert-butylphenyl)iodonium perfluoro-1-butanesulfonate and Boc-methoxyphenyldiphenylsulfonium triflate. According to claim 1,
The surfactant is a method for producing a catalyst carrier, characterized in that it comprises at least one selected from the group consisting of ionic surfactants and nonionic surfactants. 7. The method of claim 6,
The surfactant is polyethylene oxide, polypropylene oxide, polytetramethylene oxide, alkoxy polyethylene oxide (Alkoxyl poly (ethylene oxide), wherein the alkoxy group has C1 to C9), polyalkylene oxide (Poly (alkylene oxide), wherein The number of carbon atoms in the alkylene group is C2 to C9), (EO)x-(PO)y-(EO)x Triblock Copolymers (x and y are each independently one of integers from 1 to 110, EO and PO are ethylene oxide and propylene oxide, respectively), and hexadecyl(trimethyl)ammonium bromide (CTAB). 8. The method of claim 7,
The surfactant is a method for producing a catalyst carrier, characterized in that it comprises a poly(ethylene glycol)-block-poly (propylene glycol)-block-poly(ethylene glycol) copolymer (PEG-PPG-PEG). According to claim 1,
The precursor sol (sol) further comprises a solvent,
The solvent is water, toluene, chloroform, hexane, ethanol, xylene, butanol, propanol and 4-methyl-2-pentanone method for producing a catalyst carrier, characterized in that it comprises at least one selected from the group consisting of. According to claim 1,
The method for producing a catalyst support, characterized in that the catalyst support is porous. According to claim 1,
A method for producing a catalyst support, characterized in that the pore size of the catalyst support is 0.1 to 100 nm. According to claim 1,
A method for producing a catalyst carrier, characterized in that the pore shape of the catalyst carrier is any one selected from the group consisting of a spherical shape, a cylindrical shape, a plate shape, and a three-dimensional network shape. delete According to claim 1,
Step (b) is a method for preparing a catalyst carrier, characterized in that it is carried out for 1 minute to 60 minutes. According to claim 1,
Step (c) is
(c-1) drying the precursor sol to prepare a precursor powder; and
(c-2) preparing a catalyst carrier by heat-treating the precursor powder; 16. The method of claim 15,
Step (c-1) is a method for producing a catalyst carrier, characterized in that carried out at a temperature of 30 ℃ to 150 ℃. 16. The method of claim 15,
Step (c-2) is a method for producing a catalyst carrier, characterized in that it is carried out at least once for 1 hour to 10 hours at a temperature of 200 ℃ to 600 ℃. (a-1) preparing a precursor sol comprising an inorganic precursor and a surfactant;
(a-2) preparing a mixed solution containing the precursor sol and a photoacid generator;
(b) curing the mixed solution to prepare a catalyst structure;
(c) heat-treating the catalyst structure to prepare a catalyst carrier; and
(d) preparing a catalyst by supporting a metal on the catalyst carrier;
In step (b), the curing is UV curing, the method for producing a catalyst. 19. The method of claim 18,
The metal is a catalyst comprising at least one selected from the group consisting of Ag, Au, Pt, Fe, Co, Al, Ni, Ru, Rh, Ir, Pd, Cu, Mn, Zn, and alloys thereof manufacturing method. 19. The method of claim 18,
The catalyst is a method for producing a catalyst, characterized in that for removing volatile organic compounds (Volatile Organic Compounds; VOCs).

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