▎ 摘　　要

NOVELTY - Preparing circulation adsorbent graphene/molybdenum disulfide/chitosan composite hydrogel, comprises dissolving 50 mg chitosan in 19.5 ml water, adding 0.5 ml acetic acid to carry out uniform ultrasonic dispersion, to obtain chitosan solution, adding 2.5 mg/ml graphene oxide sheet to 3 mg/ml solution, performing uniform ultrasonic dispersion, adding molybdenum sheet to 2 mg/ml solution, performing uniform ultrasonic dispersion, separately adding 2 ml chitosan solution, 2.25 ml molybdenum disulfide solution and 13.5 ml graphene oxide sheet to reaction kettle to carry out hydrothermal reaction. USE - The method is useful for preparing circulation adsorbent graphene/molybdenum disulfide/chitosan composite hydrogel (claimed). ADVANTAGE - The method utilizes organic dyes which can be adsorbed during photocatalytic degradation for adsorption cycle, and utilizes methylene blue having good adsorption effect.