Promising graphdiyne-based nanomaterials for environmental pollutant control

Environmental pollutants, including gas phase pollutants, liquid organic pollutants, heavy metal ions, and pathogenic bacteria, pose a serious threat to our ecological environment and human health. Effectively addressing these pollutants has become one of the most urgent issues. Graphdiyne (GDY), as an emerging carbon material for environmental remediation, has unique acetylene bonds and abundant pore structures. The unique carbon atomic structure of sp/sp² hybrid endows it with tunable electronic structure and outstanding physical and chemical properties. This review summarizes the practical applications of GDY-based nanomaterials in the context of environmental pollution control, including carbon monoxide (CO) oxidation, ozone (O₃) decomposition, heavy metal ion detection and adsorption, organic pollutant degradation, and bacterial inactivation. Furthermore, the structure-performance relationship of GDY-based nanomaterials is analyzed, and the issues and challenges in the field of environmental remediation of GDY-based materials are indicated.