Preparation method and application of three-dimensional Fe-Mo-S catalyst loaded porous carbon electrode

A porous carbon electrode, fe-mo-s technology, applied in carbon preparation/purification, chemical instruments and methods, current collectors, etc., can solve the problems of slow reaction rate, poor treatment effect, and high operating costs

Pending Publication Date: 2021-06-04
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the current electric Fenton technology consumes a lot of power in practical applications, resulting in high operating costs; the traditional iron electrode is not effective as a catalytic electrode, and the anode iron plate will corrode and dissolve iron ions during operation. Regular replacement, and the dissolved iron ions will produce a large amount of iron sludge waste, because the iron sludge contains a large amount of toxic substances, it must be treated as hazardous waste, and the treatment cost is

Method used

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  • Preparation method and application of three-dimensional Fe-Mo-S catalyst loaded porous carbon electrode
  • Preparation method and application of three-dimensional Fe-Mo-S catalyst loaded porous carbon electrode
  • Preparation method and application of three-dimensional Fe-Mo-S catalyst loaded porous carbon electrode

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A method of preparing a three-dimensional Fe-Mo-S catalyst load, including the following steps:

[0053] 1) First, the cleansing carbon fiber felt (or carbon felt, porous carbon, three-dimensional carbon felt) is soaked in concentrated nitric acid, resulting in an oxygen-containing functional group on the surface of the carbon fiber felt and increase its hydrophilicity, then washing carbon fiber felt Sex

[0054] 2), weigh 0.3475 grams, FESO, respectively 4 · 7h 2 O (seven hydrogen sulfate), 0.3024 g of NA 2 MOO 4 · 2h 2 O (sodium dihydrate) and 1.593 g of L-CYS amino acid (L-cysteine) is dissolved in the reaction kettle liner, ultrasonic and stirred until it is fully dissolved to obtain a clear liquid, and to 200 mL to obtain a solution ;

[0055] 3), transfer the above solution to 300 mL of water heat synthesis reactor in the liner, and placed in washed carbon fiber felt;

[0056] 4) Put the reactor into the electric heating air oven for synthesis, the synthesis temperatu...

Embodiment 2

[0059] A method of preparing a three-dimensional Fe-Mo-S catalyst load, including the following steps:

[0060] 1) First, the clean carbon fiber felt is soaked in concentrated nitric acid to produce oxygen-containing functional groups on the surface of the carbon fiber felt and increase its hydrophilicity, then washed carbon fiber felt to neutral;

[0061] 2), weigh 0.8 grams of FESO, respectively 4 · 7h 2 O (seven hydrated sulfate), 0.6 grams of NA 2 MOO 4 · 2h 2 O (sodium dihydrate) and 3.0 g of L-Cys amino acids are dissolved in the reaction kettle liner, ultrasonic and stirred until the transparent liquid is sufficiently dissolved, and the solution is obtained;

[0062] 3), transfer the above solution to 300 mL of water heat synthesis reactor in the liner, and placed in washed carbon fiber felt;

[0063] 4) Put the reactor into the electric heating air oven for synthesis, the synthesis temperature is 200 ° C, the synthesis time is 24 h, naturally cooled to room temperature aft...

Embodiment 3

[0066] A method of preparing a three-dimensional Fe-Mo-S catalyst load, including the following steps:

[0067] 1) First, the clean carbon fiber felt is soaked in concentrated nitric acid to produce oxygen-containing functional groups on the surface of the carbon fiber felt and increase its hydrophilicity, then washed carbon fiber felt to neutral;

[0068] 2), Weighing 1.0425G FESO, respectively 4 · 7h 2 O (seven hydrogen sulfate), 0.9072G NA 2 MOO 4 · 2h 2 O (sodium dihydrate) and 4.7979 g of L-Cys amino acids are dissolved in the reaction kettle liner, ultrasonic and stirred until the transparent liquid is sufficiently dissolved, and the solution is obtained to obtain a solution;

[0069] 3), transfer the above solution to 300 mL of water heat synthesis reactor in the liner, and placed in washed carbon fiber felt;

[0070] 4) Put the reactor into the electric heating air oven for synthesis, the synthesis temperature is 200 ° C, the synthesis time is 24 h, naturally cooled to roo...

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Abstract

The invention belongs to the technical field of electro-Fenton cathode material synthesis and electro-Fenton water treatment. A preparation method of a three-dimensional Fe-Mo-S catalyst loaded porous carbon electrode is characterized by comprising the following steps: S1, firstly, soaking clean carbon fiber felt in concentrated nitric acid, and then cleaning the carbon fiber felt to be neutral; S2, weighing 0.3475 to 1.0425 g of FeSO4. 7H2O, 0.3024 to 0.9072 g of Na2MoO4. 2H2O and 1.5993 to 4.7979 g of L-Cys amino acid , adding water, dissolving the materials in an inner container of a reaction kettle, carrying out ultrasonic treatment and stirring, and fixing the volume to 200 mL; S3, putting a cleaned carbon fiber felt; S4, putting the reaction kettle into an electric heating blast drying oven for synthesis; and S5, cleaning and drying to obtain a product. The Fe-Mo-S catalyst is loaded on the carbon fiber felt through a hydrothermal method, hydroxyl radicals are efficiently generated, then organic pollutants in sewage are oxidized and degraded, and the catalytic effect is remarkable; and the related preparation process is simple, and the material price is relatively low.

Description

Technical field [0001] The present invention belongs to the synthesis of the electropon cathode material and the technical field of electrostat water treatment, and in particular, the method of preparing a three-dimensional Fe-Mo-S catalyst load and its application in photoconduction water treatment apparatus. Background technique [0002] Carbon fiber felt (porous carbon) is a felt-shaped porous material made of high polymer high-temperature carbonization, its raw material is rich, cheap, easy to produce, loose porous, large surface area and has good chemical stability and conductivity. Therefore, it can be used as an ideal carrier of the catalyst. Have a hole structure results in a catalytic active edge site having more exposure. [0003] The rate of redox reactions determine the product's work efficiency, and the reaction rate is determined by the catalyst. Since the oxidation reaction (ORR) of the cathode is much larger than the oxidation reaction of the anode, the electrode ...

Claims

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Application Information

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IPC IPC(8): C01B32/05C02F1/461C02F9/04C02F9/02H02J7/35
CPCC01B32/05C02F1/46109C02F9/00H02J7/35C02F2001/46133C02F2001/46161C02F2201/007C02F2201/009C02F2209/00
Inventor 黄理志杨攀郭景宜陈若仪刘嘉玮冯健恒万泓廷唐嘉怡曾洪涛
Owner WUHAN UNIV
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