偕克肟聚丙烯腈/石墨烯复合水凝胶对溶液中铀的吸附研究

摘要

In present study,polyacrylonitrile nanoparticals/graphene composite hydrogel(PAO/GH)was prepared through one-pot reduction of graphene oxide and simultaneous enwraping nano-polyacryloniyrile(n-PAN)to the hydorgel structure,follwed by transfroming nitrile groups to amidoxime groups through reacting with hydroxylamine hydrochloride.The obtanied PAO/GH shows a three-dimensional(3D)porous network structure and was characterized by SEM,XRD,FTIR,BET,TGA and Raman analysics.By comparing with the raw grahphene hydrogel(GH)contaning no nano-PAN,the characteization results showed that the enwrapment of PAO nanoparticles to the hydrogel structure not only introduced new amdoxinated functional groups but also led to the partial aggregation of the graphene sheets.