By combining graphene materials with stimulus-responsive smart materials, responsive graphene new materials can be prepared. The optoelectronic properties of responsive graphene materials change with external stimuli, thereby achieving an optoelectronic response to the external stimulus. This characteristic makes it a hot topic in current research on optoelectronic functional materials. This project aims to use methods such as chemical modification and surface functionalization to prepare responsive graphene new materials that are heavy metal ion responsive and carbon dioxide responsive, systematically study their response characteristics and mechanisms, further investigate key preparation technologies and the application development of related new products. The specific research content is as follows: 1) By modifying suitable coordination groups or organic ligands on cationic and anionic responsive graphene materials, specifically recognize certain heavy metal ions (Cu2+, Cr2+, Pb2+, Hg2+, Ag+). Research on ion-responsive graphene materials, study the mechanism and regulation of heavy metal ion response in these ion-responsive graphene materials, investigate key preparation technologies and application development of related new products. 2) Using dimethylaminopropyl methacrylamide as a functional monomer, prepare gas carbon dioxide sensitive graphene materials by surface modification and functionalization methods, study the response characteristics of these graphene materials to different concentrations of carbon dioxide gas, research the mechanism and regulation of this gas responsive graphene's response to carbon dioxide, and investigate key preparation technologies and application development of related new products.