▎ 摘　　要

NOVELTY - Adsorbent material comprises 10-15 pts. wt. graphene oxide, 5-10 pts. wt. hydroxyethyl cellulose, 1-5 pts. wt. triethanolamine, 2-5 pts. wt. trehalose, 2-3 pts. wt. polypyrrolidone, 5-10 pts. wt. polyacrylamide, 3-8 pts. wt. stearic acid, 1-2 pts. wt. silane coupling agent, 1-3 pts. wt. glutaraldehyde, 3-5 pts. wt. acetic acid, 12-20 pts. wt. nano-modified bentonite and 1-4 pts. wt. manganese dioxide, where nano-modified bentonite is 300-500 mesh powder obtained by acid modification. USE - The adsorbent material is useful for treating copper-containing wastewater (claimed). ADVANTAGE - The adsorbent material: has high porosity, high specific surface area, strong adsorption capacity, fast and efficient adsorption process, and is environmentally friendly.