One-pot Synthesis of Three-Dimensional Amidoximated Polyacrylonitrile Nanoparticals/graphene Composite Hydrogel (PAO-GH) for Selective Uranium Extraction from Saline Lake Brine

• 作者: Bai Jing Jia Zimeng Qin Zhi Yin Xiaojie
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报:英文版
• 学科: 化学
• 关键词: structure parti AGGREGATION
• 年，卷（期）: 2018,（1）
• 页码范围: 57-57
• 页数: 1页
• 分类号: O62

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.