▎ 摘　　要

NOVELTY - A carbon-based adsorbent material consists of single-layer graphene, multilayer graphene, curled graphite shell structure, graphite particles and unshaped carbon. The particle scale is 10 nm-10 mu m. The surface of each material is partially oxidized. USE - Carbon-based adsorbent material for adsorbing heavy metal ions. ADVANTAGE - The adsorbent material has excellent adsorption effect, and is economical, environmentally-friendly and non-toxic. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of carbon-based adsorbent material, which involves forming nano carbon material by oxidizing electroplating electrode of the graphite material in the electrolysis process, dissolving in the liquid to prepare the oxidized nano carbon solution by vibration, drying and grinding.