Preparation method for titanium oxide photocatalyst adopting carbon powder as load
A photocatalyst, titanium oxide technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low photoactivity, secondary pollution, difficulty in separation and recovery, etc. good effect
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[0013] A kind of preparation method of the titanium oxide photocatalyst that is loaded with carbon powder, comprises the following operations:
[0014] (1) Take the waste toner produced in the production of biomass fuel or power generation, wash with water, and dry. The toner produced in the production of biomass fuel here is mainly obtained when wood chips, rice husks and straw are used as raw materials to produce biomass fuel The carbon powder is washed with water to remove the surface impurities; then it is placed in a pretreatment agent containing silicon oxide for soaking pretreatment, thereby increasing the density of the hydrophilic group on the surface of the carbon powder; (2), the partial Put titanic acid and concentrated sulfuric acid in the reactor, and heat to dissolve the metatitanic acid, then add water to dilute to a pH value of 0.8-1.2; (3), put the pretreated waste carbon powder in the above metatitanic acid solution , heating and stirring, until the color of...
Embodiment 1
[0021] (1), take the waste carbon powder produced during the production of biomass fuel, wash it with water, dry it in the air environment at 100°C for 2 hours, and then place it in a water glass pretreatment agent for soaking pretreatment, which contains silicon oxide The mass ratio of silicon oxide to carbon in carbon powder is 0.5%;
[0022] (2) Place concentrated sulfuric acid and metatitanic acid with a mass ratio of 3:1 in the reactor, and heat in a water bath to dissolve the metatitanic acid, then add water to dilute to a pH value of 0.8;
[0023] (3), place the pretreated waste carbon powder in the above-mentioned metatitanic acid solution, wherein the mass ratio of the waste carbon powder to the metatitanic acid solution is 0.1, heat and stir until the color of the carbon powder changes from black to White, stop responding;
[0024] (4) Filtrate and dry the white matter produced by the reaction in operation (3) and then bake at 400° C. for 2 hours to obtain a titaniu...
Embodiment 2
[0026] (1) Take the waste carbon powder produced by power generation, wash it with water, dry it in the air environment at 100°C for 4 hours, and then place it in the pretreatment agent of silica sol for soaking pretreatment, wherein the silicon oxide and silicon oxide in the silicon oxide material The mass ratio of carbon in the carbon powder is 10%;
[0027] (2) Place concentrated sulfuric acid and metatitanic acid with a mass ratio of 3:1 in the reactor, and heat in a water bath to dissolve the metatitanic acid, then add water to dilute to a pH value of 1.2;
[0028] (3), place the pretreated waste carbon powder in the above-mentioned metatitanic acid solution, wherein the mass ratio of the waste carbon powder to the metatitanic acid solution is 10, heat and stir until the color of the carbon powder changes from black to White, stop responding;
[0029] (4) Filtrate and dry the white matter produced by the reaction in operation (3) and then bake at 600° C. for 0.5 hour to ...
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