▎ 摘　　要

NOVELTY - Lightweight graphene adsorbent material comprises 5-8 pts. wt. light calcium carbonate, 110-130 pts. wt. activated graphene, 1-2 pts. wt. dodecyltrimethylammonium chloride, 0.1-0.3 pts. wt. dibutyl thiolate tin, 2-3 pts. wt. propylene glycol methyl ether acetate, and 1-2 pts. wt. sodium alginate. USE - Lightweight graphene adsorbent material. ADVANTAGE - The lightweight graphene adsorbent material has good absorption, high stability, and repeated utilization factor. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing lightweight graphene adsorbent material, which involves: (A) taking dodecyl trimethyl ammonium chloride, lightcalcium carbonate, and adding to 14-20 times of weight of mixed material into deionized water, and stirring them uniformly to obtain calcium carbonate dispersion liquid; (B) adding propylene glycolmonomethyl ether acetate to dimethylformamide, and stirring uniformly, and rising at 50-55 degrees C for 10-30 minutes to obtain amide dispersion; (C) taking the calcium carbonate dispersion amide dispersion,mixing, stirring uniformly; (D) adding rest raw materials, stirring uniformly, filtering, and washing filter cake with water; and (E) vacuum drying at 85-90 degrees C for 1-2 hours, and cooling to normal temperature to obtain lightweight graphite absorption material.