▎ 摘 要
NOVELTY - Three-dimensional structure of graphene has large surface area that is provided for adsorbing heavy metal ions in aqueous solutions. USE - Three-dimensional structure of graphene for removing or reducing heavy metal ions concentration in water bodies or aquatic ecosystems. ADVANTAGE - The three-dimensional structure of graphene is prepared in simple and cost-effective manner, and has strong potential for removing metal ions, preferably mercury ions.