▎ 摘　　要

NOVELTY - Preparation of chitosan-graphene microspheres, involves adding deionized water to graphene, ultrasonically dispersing to obtain a graphene aqueous solution, stir-dissolving chitosan in acid aqueous solution, adding paraffin oil and an emulsifier, ultrasonically mixing, adding the prepared graphene solution to the chitosan solution, emulsifying to obtain a chitosan-graphene solution, adding a crosslinking agent, reacting, filling ammonia, curing, ultrasonically washing with petroleum ether, acetone, and anhydrous ethanol, suspending in anhydrous ethanol, filtering, and drying. USE - Preparation of chitosan-graphene microspheres used for water processing. ADVANTAGE - The method enables simple preparation of chitosan-graphene microspheres which are capable of adsorbing various kinds of contaminants in water to provide excellent water purification effect without generation of secondary pollution. DETAILED DESCRIPTION - Preparation of chitosan-graphene microspheres, involves adding deionized water to graphene such that concentration of graphene is 0.1-2%, ultrasonically dispersing for 1-3 hours to obtain a graphene aqueous solution, stir-dissolving chitosan in 1-5 %mass acid aqueous solution such that the concentration of chitosan is 5-10%, adding 5 %mass paraffin oil and an emulsifier, ultrasonically mixing for 30 minutes at 20 degrees C and 100 Hz, adding the prepared graphene solution to the chitosan solution under stirring conditions and nitrogen protection, emulsifying for 2 hours to obtain a chitosan-graphene solution, adding a crosslinking agent, reacting at 50-70 degrees C for 20 hours, filling ammonia, curing for 30 minutes, ultrasonically washing with petroleum ether, acetone, and anhydrous ethanol, suspending in anhydrous ethanol, vacuum-filtering, and vacuum-drying.