▎ 摘　　要

NOVELTY - Method for loading photocatalyst on graphene involves preparing graphene carrier by placing ice water bath in a beaker, adding graphite powder and sodium nitrate, adding potassium permanganate, ultrasonic processing, adding hydrogen peroxide and water, centrifuging, washing precipitate using anhydrous ethanol, and calculating density of obtained graphene solution used as graphene carrier, and performing solvent process of graphene-supported photocatalyst by mixing anhydrous ethanol, zinc sulfate heptahydrate, indium nitrate tetrahydrate, thioacetamide and weighed graphene solution. USE - Method for loading photocatalyst on graphene (claimed). ADVANTAGE - The method enables efficient loading of photocatalyst on graphene having high specific surface area and dispersion, with suppressed agglomeration of graphene stacking. DETAILED DESCRIPTION - Method for loading photocatalyst on graphene involves preparing graphene carrier by preparing a ice water bath in a magnetic stirrer, placing ice water bath in a beaker, adding graphite powder and sodium nitrate in a ratio of 5:3 to the beaker, then pouring concentrated sulfuric acid such that concentration of graphite powder is 0.02-0.05 g/mL, stirring by magnetic force for 10 minutes, adding potassium permanganate to make solution with concentration of 0.1-0.2 g/mL, stirring for 30 minutes, cooling to less than 10 degrees C, removing the ice water bath, continuously stirring for 5 hours at room temperature, adding specified amount of deionized water to the beaker such that concentrated sulfuric acid is diluted one-third of original, stirring for 30 minutes, providing the beaker in an ultrasonic cleaning machine, ultrasonic processing for 3 hours, then adding hydrogen peroxide with concentration of 0.020-0.05 g/mL to the beaker, stirring for 30 minutes, adding 200 ml water, centrifuging at 2000 rpm for 5 minutes, removing precipitate, collecting supernatant as solution (A), centrifuging the solution (A) at 8000 rpm for 5 minutes to remove supernatant, washing the precipitate using 3% hydrochloric acid solution, obtaining solution (B), centrifuging the solution (B) at 8000 rpm, removing the supernatant, washing the precipitate using deionized water, obtaining solution (C), centrifuging the solution (C) at 8000 rpm, removing supernatant, washing the precipitate using anhydrous ethanol, obtaining solution (D), repeating the above process for two times, obtaining solution (E), and calculating density of obtained graphene solution used as graphene carrier, and carrying out solvent process of graphene-supported photocatalyst (5 wt.% graphene-zinc indium sulfide) by adding weighed graphene solution into 100 ml beaker, adding 50 ml anhydrous ethanol, placing the beaker on a magnetic stirrer, stirring, adding zinc sulfate heptahydrate, indium nitrate tetrahydrate and thioacetamide, stirring for 30 minutes, providing obtained solution into 100 ml hydro-thermal reaction kettle in oven at 180 degrees C for 12 hours, taking out the hydro-thermal reaction kettle, naturally cooling to room temperature, cleaning using deionized water and anhydrous ethanol for three times, providing in an oven, drying at 80 degrees C for 12 hours, collecting, and storing in a cool dark place. The molar ratio of divalent zinc ion, trivalent indium ion and sulfur is 1:2:8. The concentration of zinc sulfate heptahydrate is 0.01-0.02 g/mL.