Abstract:Graphene composite aerogels are three-dimensional grapheme (oxide)-based porous materials with well cross-linked networks. The composite aerogels have the advantages of ultra-high specific surface, good structural stability, excellent mechanical properties and unique network crosslinking structure, which are widely used in wastewater treatment. Relevant research progress at home and abroad was tracked, the preparation methods of graphene composite aerogels, such as hydrothermal reduction method, chemical crosslinking method, self-assembly method and template method were introduced systematically, and the advantages and disadvantages of graphene composite aerogel were compared. Application of graphene composite aerogels in heavy metal ions adsorption was analyzed, and the problems and research prospects of its large-scale production and practical application were prospected.