▎ 摘　　要

NOVELTY - Preparing magnetic trisalt/cobalt hydroxide/reduced graphene ternary heterojunction photocatalyst involves dispersing graphene oxide in a mixture of ethanol and water in ratio of 1:(4-6) solvent to obtain graphene oxide dispersion, adding cetyltrimethylammonium bromide into graphene oxide dispersion, stirring, adding sodium hydroxide and cobalt nitrate hexahydrate, and stirring for 0.5-2 hours to obtain a mixed solution. USE - Method for preparing magnetic trisalt/cobalt hydroxide/reduced graphene ternary heterojunction photocatalyst (claimed). ADVANTAGE - The method enables to prepare magnetic trisalt/cobalt hydroxide/reduced graphene ternary heterojunction photocatalyst is recycled, which has high contains 25 wt.% of reducing graphene oxide light catalyst, saves time, and has better catalytic activity than the existing cobalt-based catalyst. DETAILED DESCRIPTION - Preparing magnetic trisalt/cobalt hydroxide/reduced graphene ternary heterojunction photocatalyst involves dispersing graphene oxide in a mixture of ethanol and water in ratio of 1:(4-6) solvent to obtain graphene oxide dispersion, adding cetyltrimethylammonium bromide into graphene oxide dispersion, stirring, adding sodium hydroxide and cobalt nitrate hexahydrate, and stirring for 0.5-2 hours to obtain a mixed solution. The mixed solution is transferred to a teflon reactor, reaction is performed at 150-170 degrees C for 3-5 hours to obtain reactant. The obtained reactant is centrifuged to obtain a precipitate. The precipitate is washed and dried to obtain final product.