Preparation method of cobalt phosphate-assisted silver phosphate photocatalyst
A cobalt phosphate and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of reduced catalyst degradation performance and easy self-corrosion.
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Embodiment 1
[0013] Weigh 24mmol silver nitrate, configure it into a 20mmol / L silver nitrate solution, weigh 8mmol disodium hydrogen phosphate, configure it into a 20mmol / L disodium hydrogen phosphate solution; mix the above two solutions at a speed of 400 rpm , form a yellow-green colloidal substance, continue to stir for 4 hours, during the stirring process, disodium hydrogen phosphate and silver nitrate react to generate silver phosphate colloid; place the silver phosphate colloid in a semi-permeable membrane bag, wash 4 times with distilled water, and remove free ions, then add the silver phosphate colloid to 80mL of cobalt nitrate solution with a concentration of 2mol / L, soak for 3 days, form cobalt phosphate nanoparticles on the surface of silver phosphate particles, separate solid from liquid, wash the solid with deionized water 3 times, Dry at 105°C to prepare a cobalt phosphate assisted silver phosphate photocatalyst.
[0014] Add 0.3 g of the obtained cobalt phosphate assisted si...
Embodiment 2
[0016] Take by weighing 20mmol silver nitrate, configure the silver nitrate solution of 20mmol / L, take by weighing 6.6mmol disodium hydrogen phosphate, configure the disodium hydrogen phosphate solution of 20mmol / L; Mix to form a yellow-green colloidal substance, and continue to stir for 3 hours. During the stirring process, disodium hydrogen phosphate and silver nitrate react to form silver phosphate colloid; place the silver phosphate colloid in a semi-permeable membrane bag, wash 3 times with distilled water, remove Remove free ions, then add the silver phosphate colloid to 60mL cobalt nitrate solution with a concentration of 1mol / L, soak for 1 day, form cobalt phosphate nanoparticles on the surface of silver phosphate particles, separate solid from liquid, and wash the solid twice with deionized water , and dried at 75°C to prepare a cobalt phosphate-assisted silver phosphate photocatalyst.
[0017] Add 0.3 g of the obtained cobalt phosphate assisted silver phosphate photo...
Embodiment 3
[0021] Weigh 24mmol silver nitrate, configure it into a 20mmol / L silver nitrate solution, weigh 8mmol disodium hydrogen phosphate, configure it into a 20mmol / L disodium hydrogen phosphate solution; mix the above two solutions at a speed of 400 rpm , form a yellow-green colloidal substance, continue to stir for 4 hours, during the stirring process, disodium hydrogen phosphate and silver nitrate react to generate silver phosphate colloid; place the silver phosphate colloid in a semi-permeable membrane bag, wash 4 times with distilled water, and remove free ions, then add the silver phosphate colloid to 60mL of cobalt nitrate solution with a concentration of 2mol / L, soak for 3 days, form cobalt phosphate nanoparticles on the surface of silver phosphate particles, separate solid from liquid, wash the solid with deionized water 3 times, Dry at 95°C to prepare a cobalt phosphate assisted silver phosphate photocatalyst.
[0022] Add 0.3 g of the obtained cobalt phosphate assisted sil...
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