Electro-Fenton method for in-situ production of hydrogen peroxide or degradation of organic pollutants by composite cathode combining cathode aeration and cathode modification
A technology of organic pollutants and composite cathodes, applied in water pollutants, oxidized water/sewage treatment, water aeration, etc., can solve the problems of low hydrogen peroxide production and restricted applications, achieve good application prospects, save electric energy, and produce high rate effect
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example 1
[0024] Example 1: Hydrogen peroxide yield experiment
[0025] Cut the graphite felt with a thickness of 5mm into a square with a size of 5cm×6cm, ultrasonically clean it with acetone for 30min to remove the surface stains on the graphite felt, and then ultrasonically clean it with deionized water three times to remove residual acetone; dry it in an oven at 80°C for 12h, Record as pre-treated graphite felt; weigh 0.2g conductive carbon black and dissolve it in 30ml deionized water, add 0.4ml polytetrafluoroethylene and ultrasonically mix it for 30min at the same time; impregnate the graphite felt pretreated with acetone and deionized water into In the above mixed solution, ultrasonically impregnate for 30 minutes, move into an oven and dry at 80° C. for 3 hours; finally, calcine at 360° C. for 1 hour in an air atmosphere, and store the prepared cathode in vacuum for future use. The prepared modified cathode is used for the cathode catalytic layer, the stainless steel mesh is th...
example 2
[0026] Example 2: Stability experiment of hydrogen peroxide produced by composite cathode
[0027] Cut the graphite felt with a thickness of 5mm into a square with a size of 5cm×6cm, ultrasonically clean it with acetone for 30min to remove the surface stains on the graphite felt, and then ultrasonically clean it with deionized water three times to remove residual acetone; dry it in an oven at 80°C for 12h, Record as pre-treated graphite felt; weigh 0.2g conductive carbon black and dissolve it in 30ml deionized water, add 0.4ml polytetrafluoroethylene and ultrasonically mix it for 30min at the same time; impregnate the graphite felt pretreated with acetone and deionized water into In the above mixed solution, ultrasonically impregnate for 30 minutes, move into an oven and dry at 80° C. for 3 hours; finally, calcine at 360° C. for 1 hour in an air atmosphere, and store the prepared cathode in vacuum for future use. The prepared modified cathode is used for the cathode catalytic ...
example 3
[0028] Example 3: Removal effect of composite cathode on FA simulated wastewater
[0029] Cut the graphite felt with a thickness of 5mm into a square with a size of 5cm×6cm, ultrasonically clean it with acetone for 30min to remove the surface stains on the graphite felt, and then ultrasonically clean it with deionized water three times to remove residual acetone; dry it in an oven at 80°C for 12h, Record as pre-treated graphite felt; weigh 0.2g conductive carbon black and dissolve it in 30ml deionized water, add 0.4ml polytetrafluoroethylene and ultrasonically mix it for 30min at the same time; impregnate the graphite felt pretreated with acetone and deionized water into In the above mixed solution, ultrasonically impregnate for 30 minutes, move into an oven and dry at 80° C. for 3 hours; finally, calcine at 360° C. for 1 hour in an air atmosphere, and store the prepared cathode in vacuum for future use. The prepared modified cathode is used for the cathode catalytic layer, th...
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