▎ 摘　　要

NOVELTY - One-step synthesis of sulfur-doped graphene aerogel comprised dispersing graphene oxide in deionized water, adding dithiothreitol, stirring, heating, soaking in distilled water, and freeze-drying; mixing with polyvinyl alcohol solution, pipetting to stiff paper, and freeze-drying; placing heavy metal ions solution in electrical adsorption vessel, placing product in second step, carrying out electric adsorption experiment, and carrying out real-time monitoring on conductivity until saturation adsorption; and removing paper, desorpting, and regenerating electrode. USE - Method for one-step synthesizing sulfur-doped graphene aerogel used for adsorbing and removing heavy metal ions (claimed). ADVANTAGE - The method is simple and easy, protects environmental, and has no pollution, high heavy metal ion adsorption efficiency, and fast adsorption speed. DETAILED DESCRIPTION - One-step synthesis of sulfur-doped graphene aerogel comprises: (A) ultrasonically dispersing graphene oxide in deionized water for 10-30 minutes, adding dithiothreitol, stirring, heating to 95 degrees C for 2 hours, soaking in distilled water for 2-3 days, and freeze-drying; (B) mixing with polyvinyl alcohol solution, pipetting 0.1-0.4 mL on stiff paper, and freeze-drying; (C) placing heavy metal ions solution in electrical adsorption vessel, placing product in second step, carrying out electric adsorption experiment using three-electrode system of paper as working electrode, platinum electrode sheet as pair electrode, and calomel electrode as reference electrode, and carrying out real-time monitoring on conductivity until saturation adsorption; and (D) removing paper, desorpting, and regenerating electrode.