CN103663631A - Three-dimensional particle electrode loaded with catalyst active carbon and preparation method thereof - Google Patents
Three-dimensional particle electrode loaded with catalyst active carbon and preparation method thereof Download PDFInfo
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- CN103663631A CN103663631A CN201310665223.5A CN201310665223A CN103663631A CN 103663631 A CN103663631 A CN 103663631A CN 201310665223 A CN201310665223 A CN 201310665223A CN 103663631 A CN103663631 A CN 103663631A
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- 239000002245 particle Substances 0.000 title claims abstract description 50
- 239000003054 catalyst Substances 0.000 title claims abstract description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 title claims description 34
- 229910052718 tin Inorganic materials 0.000 claims abstract description 31
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 230000032683 aging Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000004913 activation Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- 239000007863 gel particle Substances 0.000 claims description 18
- 238000011068 loading method Methods 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000010970 precious metal Substances 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 36
- 239000010936 titanium Substances 0.000 description 14
- 238000003756 stirring Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- -1 hydroxyl radical free radical Chemical class 0.000 description 5
- 238000004435 EPR spectroscopy Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 241000143437 Aciculosporium take Species 0.000 description 3
- 229910006404 SnO 2 Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000005405 multipole Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- QWLULCKKOHDCIE-UHFFFAOYSA-N 2,3-dimethyl-1-oxidopyridin-1-ium Chemical compound CC1=CC=C[N+]([O-])=C1C QWLULCKKOHDCIE-UHFFFAOYSA-N 0.000 description 1
- VCUVETGKTILCLC-UHFFFAOYSA-N 5,5-dimethyl-1-pyrroline N-oxide Chemical compound CC1(C)CCC=[N+]1[O-] VCUVETGKTILCLC-UHFFFAOYSA-N 0.000 description 1
- 229910020203 CeO Inorganic materials 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
一种负载催化剂活性炭的三维粒子电极及其制备方法，该电极由颗粒活性炭及负载在颗粒活性炭上的掺杂Sn和Sb元素的TiO2固溶体复合催化剂构成。本发明的方法包括颗粒活性炭预处理、催化剂制备、浸渍陈化、干燥烘干和焙烧活化几个步骤。本发明制备的负载催化剂三维粒子电极具有污染物去除率高，电催化活性高（羟基自由基产生量高，催化剂流失量少等特点；而且制备方法简单，未使用贵金属催化剂，所用原材料来源广泛，制造成本低廉，无二次污染。本发明制备的负载型三维粒子电极应用于三维电极反应器中可以高效的处理难生物降解有机废水。
A three-dimensional particle electrode loaded with catalytic activated carbon and a preparation method thereof. The electrode is composed of granular activated carbon and a TiO2 solid solution composite catalyst loaded on the granular activated carbon doped with Sn and Sb elements. The method of the invention comprises several steps of granular activated carbon pretreatment, catalyst preparation, impregnation aging, drying and roasting and activation. The catalyst-supported three-dimensional particle electrode prepared by the present invention has the characteristics of high pollutant removal rate, high electrocatalytic activity (high generation of hydroxyl radicals, less loss of catalyst, etc.); and the preparation method is simple, no precious metal catalyst is used, and the raw materials used are from a wide range of sources. The manufacturing cost is low, and there is no secondary pollution. The loaded three-dimensional particle electrode prepared by the invention can efficiently treat refractory biodegradable organic wastewater when applied in a three-dimensional electrode reactor.
Description
Technical field
The present invention relates to three dimensional particles electrode of a kind of supported catalyst gac and preparation method thereof, can be used as the particle filled composite of 3 D electrode reactor and for difficult for biological degradation treatment of Organic Wastewater, belong to electrochemical catalytic field.
Background technology
In recent years, multipole 3 D electrode reactor is subject to extensive concern.Due to barrier material not being set between the anode and cathode in reactor, three dimensional particles electrode is filled between anode and cathode, particle has two kinds of electric polarities under electric field action simultaneously, each three dimensional particles electrode forms micro-electrochemical oxidation system, therefore make multipole reactor be more suitable for irreversible oxidizing reaction, thereby there is following characteristics: (1) has that specific surface area is large, face body than large, unit cell body treatment capacity is large; (2) organic pollutant degradation is effective; (3) rate of mass transfer is fast, current efficiency is high, low power consumption and other advantages; (4) be applicable to process the waste water that specific conductivity is lower, saved in two-dimensional electrode is used and added extra electrolytical expense.Three dimensional particles electrode is the important component part of multipole 3 D electrode reactor; Existing granule electrode is mainly with loading type γ-A1
2o
3, carried molecular sieve, loading type pottery, Coated Activated Carbon, supported catalyst gac be main, but still there is following problem in above granule electrode: (1) loading type γ-A1
2o
3, there is more serious catalyst loss problem in carried molecular sieve, and due to its amphoteric character, resistance to acids and bases is poor, is not therefore suitable in the alkaline waste water of strongly-acid and uses; (2) loading type ceramic surface is covered and peels off by organism and also causes loss of active component serious, and pottery, because it is expensive, has to a certain degree limited it and applied simultaneously; (3) gac has high-specific surface area, cheap and easy to get, chemical stability good and have absorption property concurrently, but load (Mn, Fe, Zn, Ni, CeO
2/ Sb
2o
3, SnO
2/ Sb
2o
3) gac three dimensional particles electrode still exists catalyst activity not high, the problems such as catalyst loss, its major cause is that a) catalyzer self activity is low; B) large, the poor adhesive force of catalyst particle size, the easy shortcoming such as loss.
Summary of the invention
The object of this invention is to provide three dimensional particles electrode of a kind of supported catalyst gac and preparation method thereof, make it have the features such as pollutants removal rate is high, catalytic activity is high, catalyst stream vector is low and preparation method simple.
Technical scheme of the present invention is as follows:
A three dimensional particles electrode for supported catalyst gac, is characterized in that: this granule electrode consists of granulated active carbon and the composite catalyst loading on granulated active carbon; Described composite catalyst is the TiO of doping Sn and Sb element
2sosoloid.
In composite catalyst of the present invention, Sn and Ti element mol ratio are 0.005～0.03:1; The mol ratio of Sn and Sb element is 10～20:1.
The preparation method of the three dimensional particles electrode of a kind of supported catalyst gac provided by the invention, is characterized in that the method comprises the following steps:
1) granulated active carbon pre-treatment: granulated active carbon is soaked in deionized water, measure specific conductivity in water consistent with deionized water after, be filtered dry excessive moisture and put into baking oven and be dried through 100 ℃～200 ℃, be cooled to room temperature stand-by;
2) catalyzer preparation: by tetrabutyl titanate and dehydrated alcohol, SnCl
45H
2o and SbCl
3be mixed with A solution; Again deionized water, dehydrated alcohol and acetic acid are configured to B solution; B solution is added drop-wise to slowly in A solution and forms the sol solutions containing Ti, Sn and Sb, and in this sol solutions, the mol ratio of Sn and Ti is 0.005～0.03:1; The mol ratio of Sn and Sb is 10～20:1;
3) sol solutions of preparation dipping ageing: will be immersed in step 2 through pretreated granulated active carbon in step 1))
In, and carry out ageing formation gel particle;
4) dry oven dry: the gel particle forming in step 3) is placed in to vacuum drying oven, at 80 ℃～95 ℃ dry 8h～24h;
5) calcination activation: dried gel particle is put into retort furnace, fire 2h～3h at the temperature of 500 ℃～550 ℃, naturally cool to room temperature, obtain the three dimensional particles electrode of supported catalyst gac.
The present invention compared with prior art, has the following advantages and the technique effect of high-lighting: the composite catalyst coating that 1. prepared by the present invention presents the layered distribution (Fig. 1) of nanoscale (median size 10nm), and with stable TiO
2-SnO
2therefore there is (Fig. 3, Fig. 4) in/Sb sosoloid form, hydroxyl radical free radical generation high (Fig. 2) has guaranteed that loading type three dimensional particles electrode possesses higher structural stability, catalyst stream vector is low and catalytic activity is high feature; 2. the loading type three dimensional particles application of electrode that prepared by the present invention can be processed efficiently difficult for biological degradation organic waste water, pollutants removal rate high (table 1) in 3 D electrode reactor; 3. preparation method of the present invention is simple, does not use noble metal catalyst, and raw materials wide material sources are cheap for manufacturing cost, high without the dirty catalytic activity of secondary.
Accompanying drawing explanation
Fig. 1 is three dimensional particles electrode surface scanning electron microscope (SEM) photograph of the present invention.
Fig. 2 is three dimensional particles electrode hydroxyl radical free radical generation of the present invention.
Fig. 3 is three dimensional particles pole catalyze layer X-ray diffractogram of the present invention.
Fig. 4 is three dimensional particles pole catalyze layer Raman spectrogram of the present invention.
Embodiment
Embodiment 1:
The loading type three dimensional particles electrode of the present embodiment is by granulated active carbon and loads on the TiO of adulterate on granulated active carbon Sn, Sb element
2composite catalyst forms; Described doping Sn, the TiO of Sb element
2in composite catalyst, the mol ratio of Sn and Ti is 0.005:1; The mol ratio of Sn and Sb is 10:1.Preparation method comprises the following steps:
1) grain active carbon pre-treatment: granulated active carbon is immersed in deionized water and is cleaned, and the specific conductivity of measuring in rinse water is consistent with deionized water, elimination excessive moisture puts into that 100 ℃, baking oven is dried and to be cooled to room temperature stand-by;
2) catalyzer preparation: take 5.7 * 10
-2mol tetrabutyl titanate, 2.85 * 10
-4mol SnCl
45H
2o, 2.85 * 10
-5mol SbCl
3be dissolved in 40mL dehydrated alcohol, rapid stirring 30min, makes solution A.Take 5mL deionized water, 1.5mL acetic acid is dissolved in 40ml dehydrated alcohol and rapid stirring 30min, makes solution B.B solution is added drop-wise in solution A, and A solution vigorous stirring in dropping process, obtains the faint yellow transparent Ti of containing, Sn and Sb element sol solutions;
3) dipping ageing: will be immersed in above-mentioned sol solutions through pretreated granulated active carbon, and carry out ageing formation gel particle;
4) dry oven dry: formation gel particle is placed in to vacuum drying oven, at 80 ℃ of dry 24h;
5) calcination activation: just dried gel particle is put into retort furnace, fires after 3h at 500 ℃, naturally cools to room temperature.
Embodiment 2:
The loading type three dimensional particles electrode of the present embodiment is by granulated active carbon and loads on the TiO of adulterate on granulated active carbon Sn, Sb element
2composite catalyst forms; Described doping Sn, the TiO of Sb element
2in composite catalyst, the mol ratio of Sn and Ti is 0.03:1; The mol ratio of Sn and Sb is 20:1.Preparation method comprises the following steps:
1) grain active carbon pre-treatment: granulated active carbon is immersed in deionized water and is cleaned, and the specific conductivity of measuring in rinse water is consistent with deionized water, elimination excessive moisture puts into that 200 ℃, baking oven is dried and to be cooled to room temperature stand-by;
2) catalyzer preparation: take 5.7 * 10
-2mol tetrabutyl titanate, 1.71 * 10
-3the SnCl of mol
45H
2o, 8.55 * 10
-5the SbCl of mol
3be dissolved in 40mL dehydrated alcohol, rapid stirring 30min, makes solution A; Take 5mL deionized water, 1.5mL acetic acid is dissolved in 40ml dehydrated alcohol and rapid stirring 30min, makes solution B.B solution is added drop-wise in solution A, and A solution vigorous stirring in dropping process, obtains the faint yellow transparent Ti of containing, Sn and Sb element sol solutions;
3) dipping ageing: will be immersed in above-mentioned sol solutions through pretreated granulated active carbon, and carry out ageing formation gel particle;
4) dry oven dry: formation gel particle is placed in to vacuum drying oven, at 95 ℃ of dry 8h;
5) calcination activation: dried gel particle is put into retort furnace, fire after 2h at 550 ℃, naturally cool to room temperature.
Embodiment 3:
The loading type three dimensional particles electrode of the present embodiment is by granulated active carbon and loads on the TiO of adulterate on granulated active carbon Sn, Sb element
2composite catalyst forms; Described doping Sn, the TiO of Sb element
2in composite catalyst, the mol ratio of Sn and Ti is 0.01:1; The mol ratio of Sn and Sb is 10:1.
Preparation method comprises the following steps:
1) grain active carbon pre-treatment: granulated active carbon is immersed in deionized water and is cleaned, and the specific conductivity of measuring in rinse water is consistent with deionized water, elimination excessive moisture puts into that 150 ℃, baking oven is dried and to be cooled to room temperature stand-by;
2) catalyzer preparation: take 5.7 * 10
-2mol tetrabutyl titanate, 5.7 * 10
-4mol SnCl
45H
2o, 5.7 * 10
-5mol SbCl
3be dissolved in 40mL dehydrated alcohol, rapid stirring 30min, makes solution A.Take 5mL deionized water, 1.5mL acetic acid is dissolved in 40ml dehydrated alcohol and rapid stirring 30min, makes solution B.B solution is added drop-wise in solution A, and A solution vigorous stirring in dropping process, obtains the faint yellow transparent Ti of containing, Sn and Sb element sol solutions;
3) dipping ageing: will be immersed in above-mentioned sol solutions through pretreated granulated active carbon, and carry out ageing formation gel particle;
4) dry oven dry: formation gel particle is placed in to vacuum drying oven, at 90 ℃ of dry 15h;
5) calcination activation: just dried gel particle is put into retort furnace, fires after 2h at 500 ℃, naturally cools to room temperature.
Embodiment 4:
The loading type three dimensional particles electrode of the present embodiment is by granulated active carbon and loads on the TiO of adulterate on granulated active carbon Sn, Sb element
2composite catalyst forms; Described doping Sn, the TiO of Sb element
2in composite catalyst, the mol ratio of Sn and Ti is 0.02:1; The mol ratio of Sn and Sb is 15:1.
Preparation method comprises the following steps:
1) grain active carbon pre-treatment: granulated active carbon is immersed in deionized water and is cleaned, and the specific conductivity of measuring in rinse water is consistent with deionized water, elimination excessive moisture puts into that 150 ℃, baking oven is dried and to be cooled to room temperature stand-by;
2) catalyzer preparation: take 5.7 * 10
-2mol tetrabutyl titanate, 1.14 * 10
-4mol SnCl
45H
2o, 7.60 * 10
-5mol SbCl
3be dissolved in 40mL dehydrated alcohol, rapid stirring 30min, makes solution A.Take 5mL deionized water, 1.5mL acetic acid is dissolved in 40ml dehydrated alcohol and rapid stirring 30min, makes solution B.B solution is added drop-wise in solution A, and A solution vigorous stirring in dropping process, obtains the faint yellow transparent Ti of containing, Sn and Sb element sol solutions;
3) dipping ageing: will be immersed in above-mentioned sol solutions through pretreated granulated active carbon, and carry out ageing formation gel particle;
4) dry oven dry: formation gel particle is placed in to vacuum drying oven, at 85 ℃ of dry 24h;
5) calcination activation: just dried gel particle is put into retort furnace, fires after 2h at 500 ℃, naturally cools to room temperature.
Embodiment 5:
The electrolysis effectiveness test of carried active carbon three dimensional particles electrode of the present invention.
The granule electrode of preparing in embodiment 1-2 is filled in and in 3 D electrode reactor, processes rhdamine B electrolytic trial (COD:150mg/L, pH=7), wherein ionogen Na
2sO
4concentration is 0.1M, and anode material is titanium base RuO
2-IrO
2-TiO
2-SnO
2coated electrode, negative electrode is stainless steel plate.Before electrolysis, carry out preadsorption test to get rid of adsorbing impact.Test is at continuous current (current density 60mA/cm
2), under hydraulic detention time 3min condition, carrying out, electrolysis time is 4h, every half an hour, samples and measure COD clearance, the COD average removal rate of usining in 4h is as evaluation index.
The three dimensional particles electrode fouling thing removal effect of preparing in table 1 embodiment of the present invention
The pollutants removal rate of the supported catalyst gac three dimensional particles electrode that as can be seen from Table 1, prepared by the present invention is higher than comparing the not catalytic efficiency of loaded particle activated carbon particles.
Embodiment 6: hydroxyl radical free radical determination test
The hydroxyl radical free radical that the supported catalyst three dimensional particles electrolytic process of preparing by electron paramagnetic resonance method (EPR) mensuration embodiment 1 produces is differentiated the electro catalytic activity of three dimensional particles.Na with 0.1mol/L
2sO
4solution is electrolytic solution, to filling the reactor of the supported catalyst three dimensional particles electrode of example 1 preparation, switch on after 10min, add a certain amount of trapping agent DMPO(dimethyl pyridine N-oxide) after by EPR method, draw the spectrogram of OH-EPR, by spectrogram medium wave spectral intensity, characterize the generation of OH.As Fig. 2 can find out, the hydroxyl radical free radical generation of supported catalyst three dimensional particles electrode prepared by the present invention is 5 times of left and right of supported catalyst particle not, illustrates that its electro catalytic activity is high, and electrochemical oxidation ability is strong.
Embodiment 7: catalyst loss test
The gac three dimensional particles electrode of preparation load Ti element and load Sn and Sb element is particle in contrast, the loading type particle of preparation in embodiment 1 and contrast particle are carried out as the electrolytic trial of embodiment 5, by effluent collection and measure the catalyst stream vector that the content of catalyzer wherein characterizes three dimensional particles electrode and evaluate its structural stability.
Table 2 loading type three dimensional particles electrode catalyst wastage
As can be seen from Table 2, the catalyst stream vector of loading type three dimensional particles electrode prepared by the present invention is minimum, the excellent in stability of this three dimensional particles electrode that explanation is prepared by the present invention, mainly because Ti, Sn, Sb form stable sosoloid (Fig. 3, Fig. 4), crystal type and TiO in the Catalytic Layer of supported catalyst gac three dimensional particles electrode prepared by the present invention
2anatase seemingly.
Claims (3)
1. a three dimensional particles electrode for supported catalyst gac, is characterized in that: this granule electrode consists of granulated active carbon and the composite catalyst loading on granulated active carbon; Described composite catalyst is the TiO of doping Sn and Sb element
2sosoloid.
2. according to the three dimensional particles electrode of a kind of supported catalyst gac claimed in claim 1, it is characterized in that: in composite catalyst, the mol ratio of Sn and Ti element is 0.005～0.03:1; The mol ratio of Sn and Sb element is 10～20:1.
3. the preparation method of the three dimensional particles electrode of a kind of supported catalyst gac as claimed in claim 1, is characterized in that the method comprises the following steps:
1) granulated active carbon pre-treatment: granulated active carbon is soaked in deionized water, measure specific conductivity in water consistent with deionized water after, be filtered dry excessive moisture and put into baking oven and be dried through 100 ℃～200 ℃, be cooled to room temperature stand-by;
2) catalyzer preparation: by tetrabutyl titanate and dehydrated alcohol, SnCl
45H
2o and SbCl
3be mixed with A solution; Again deionized water, dehydrated alcohol and acetic acid are configured to B solution; B solution is added drop-wise to slowly in A solution and forms the sol solutions containing Ti, Sn and Sb, and in this sol solutions, the mol ratio of Sn and Ti is 0.005～0.03:1, and the mol ratio of Sn and Sb is 10～20:1;
3) in the sol solutions of preparing dipping ageing: will be immersed in step 2 through pretreated granulated active carbon in step 1)), and carry out ageing formation gel particle;
4) dry oven dry: the gel particle forming in step 3) is placed in to vacuum drying oven, at 80 ℃～95 ℃ dry 8h～24h;
5) calcination activation: dried gel particle is put into retort furnace, fire 2h～3h at the temperature of 500 ℃～550 ℃, naturally cool to room temperature, obtain the three dimensional particles electrode of supported catalyst gac.
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| CN106517429A (en) * | 2016-11-21 | 2017-03-22 | 北京益清源环保科技有限公司 | Modified ceramic particle electrode with function of removing furan through electro-catalysis and preparation method |
| CN106517434A (en) * | 2016-11-21 | 2017-03-22 | 北京益清源环保科技有限公司 | Modified activated carbon particle electrode with function of removing pyridine through electro-catalysis, and preparation method of modified activated carbon particle electrode |
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| CN106517431A (en) * | 2016-11-21 | 2017-03-22 | 北京益清源环保科技有限公司 | Modified ceramic particle electrode with electrocatalytic carbazole removing function and preparing method thereof |
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| CN108101164A (en) * | 2018-01-08 | 2018-06-01 | 山西华鑫煤焦化实业集团有限公司 | A kind of three dimensional particles electrode for being applied to electro-Fenton reaction in situ and preparation method thereof |
| CN110404534A (en) * | 2019-07-03 | 2019-11-05 | 浙江大学 | A highly efficient anti-chlorine poisoning volatile organic compound catalytic oxidation catalyst and preparation method thereof |
| CN110818035A (en) * | 2019-12-16 | 2020-02-21 | 嘉兴市众盛环保科技有限公司 | TiN/activated carbon three-dimensional particle electrode and preparation method thereof |
| CN111087050A (en) * | 2020-01-10 | 2020-05-01 | 江苏理工学院 | Preparation of granule electrode and three-dimensional electrolytic reactor structure of optimization |
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| CN113912059A (en) * | 2020-07-09 | 2022-01-11 | 中国科学院大连化学物理研究所 | Asphalt-based spherical activated carbon and preparation method and application thereof |
| CN114162912A (en) * | 2021-11-04 | 2022-03-11 | 泉州南京大学环保产业研究院 | Preparation method of titanium dioxide particle electrode loaded with high {001} crystal face |
| CN114768495A (en) * | 2022-05-11 | 2022-07-22 | 江苏齐清环境科技有限公司 | Device for mineralizing low-boiling-point water-insoluble organic waste gas based on catalytic plasma coupled bipolar three-dimensional electrode reactor |
| CN115138375A (en) * | 2022-07-06 | 2022-10-04 | 中钢集团鞍山热能研究院有限公司 | Method for preparing three-dimensional particle electrode by using waste three-way catalyst and application of electrode |
| CN115926825A (en) * | 2022-01-24 | 2023-04-07 | 重庆交通大学 | Preparation method of biomass carbon particles for water body remediation treatment |
| CN115974239A (en) * | 2023-02-23 | 2023-04-18 | 广东工业大学 | A particle electrode and its preparation method and application |
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| CN115926825B (en) * | 2022-01-24 | 2024-08-06 | 重庆交通大学 | Preparation method of biomass carbon particles for water body restoration treatment |
| CN115926825A (en) * | 2022-01-24 | 2023-04-07 | 重庆交通大学 | Preparation method of biomass carbon particles for water body remediation treatment |
| CN114768495A (en) * | 2022-05-11 | 2022-07-22 | 江苏齐清环境科技有限公司 | Device for mineralizing low-boiling-point water-insoluble organic waste gas based on catalytic plasma coupled bipolar three-dimensional electrode reactor |
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| CN115974239B (en) * | 2023-02-23 | 2024-04-19 | 广东工业大学 | A particle electrode and its preparation method and application |
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