▎ 摘　　要

NOVELTY - Preparing graphene oxide/sodium alga acid gel sphere material involves addding graphene oxide dispersion liquid and sodium alginate aqueous solution at room temperature to same volume, high speed stirring, low speed stirring and ultrasonic dispersing, standing and defoaming and dripping into crosslinking agent to obtain gel ball. The gel ball is put in distilled water for every 6 hours exchanged for one time water washing for 3-4 times to obtain oxidized graphene/sodium alginate hydrogel sphere material, freezing and drying for 48-72 hours to obtain oxide graphene/sodium alga acid gel sphere material. USE - Method for preparing graphene oxide/sodium alga acid gel sphere material used as adsorbent in wastewater treatment field containing methylene blue. ADVANTAGE - Then method enables to prepare graphene oxide/sodium alga acid gel sphere material that is easy to control, cost effective and suitable for mass production.