A kind of graphene/copper hydroxyphosphate composite catalyst and preparation method thereof
A technology of copper hydroxyphosphate and composite catalyst, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problem of reducing catalyst particle size, accelerating electron-hole separation, and increasing specific surface area and other problems, to achieve the effect of inhibiting recombination, enhancing photocatalytic performance, and simplifying the synthesis process.
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Embodiment 1
[0027] Embodiment 1: preparation mass ratio is the graphene / copper hydroxyphosphate composite catalyst of 0.2: 99.8 and measures its photocatalytic performance, concrete steps are as follows:
[0028] (1): Prepare 0.2 mg / mL graphene oxide aqueous solution;
[0029] (2): After weighing 1.87 g of copper nitrate and dissolving it in water, add 0.7098 g of disodium hydrogen phosphate under stirring, stir for 30-60 min, then add 10 mL of the above-mentioned graphene oxide aqueous solution, continue stirring for 10-30 min, and then add The mixed solution was put into a stainless steel reaction kettle, moved into a blast drying oven, and reacted at 120 °C for 6 h to obtain a graphene / copper hydroxyphosphate precipitate, which was centrifuged, washed and dried to obtain a graphene / copper hydroxyphosphate composite catalyst powder
[0030] (3) A Quanta 200 environmental scanning electron microscope (SEM) from the United States was used to observe the morphology of the sample, and a Ge...
Embodiment 2
[0032] Embodiment 2: preparation mass ratio is the graphene / copper hydroxyphosphate composite catalyst of 0.5: 99.5 and measures its photocatalytic performance, concrete steps are as follows:
[0033] (1): Prepare 0.5 mg / mL graphene oxide aqueous solution;
[0034] (2): After weighing 2.50 g of copper sulfate pentahydrate and dissolving it in water, add 0.7098 g of disodium hydrogen phosphate under stirring, after stirring for 30-60 minutes, add 10 mL of the above-mentioned graphene oxide aqueous solution, and continue stirring for 10-30 minutes. Then put the mixed solution into a stainless steel reaction kettle, move it into a blast drying oven, and react at 120 °C for 12 h to obtain a graphene / copper hydroxyphosphate precipitate, which is centrifuged, washed and dried to obtain a graphene / copper hydroxyphosphate Composite catalyst powder.
[0035] (3) A Quanta 200 environmental scanning electron microscope (SEM) from the United States was used to observe the morphology of t...
Embodiment 3
[0037] Embodiment 3: preparation mass ratio is the graphene / copper hydroxyphosphate composite catalyst of 1:99 and measures its photocatalytic performance, concrete steps are as follows:
[0038] (1): Prepare 1 mg / mL graphene oxide aqueous solution;
[0039](2): After weighing 2.06 g of copper chloride dihydrate and dissolving it in water, add 0.7098 g of disodium hydrogen phosphate under stirring, stir for 30-60 minutes, then add 10 mL of the above-mentioned graphene oxide aqueous solution, and continue stirring for 10-30 minutes , and then put the mixed solution into a stainless steel reaction kettle, move it into a blast drying oven, and react at 120 °C for 12 h to obtain a graphene / copper hydroxyphosphate precipitate, which is centrifuged, washed and dried to obtain a graphene / hydroxyphosphate Copper composite catalyst powder.
[0040] (3) A Quanta 200 environmental scanning electron microscope (SEM) from the United States was used to observe the morphology of the sample,...
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