石墨烯基分离膜研究进展-中国材料进展

文章信息/Info

Author(s):: ZHANG Qing; REN Wencai; CHENG HuiMing; (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China)

Keywords:: graphene; graphene oxide; separation membranes; nanoporous graphene films; graphene oxidebased laminated membrane; liquid phase separation

摘要:: 以石墨烯及其衍生物作为基本单元构筑的分离膜，由于独特的孔结构和离子分子筛分特性，在海水淡化、污水处理、渗透蒸发等领域表现出潜在的应用价值。根据石墨烯基分离膜的结构特点，可以将其归类为纳米孔石墨烯薄膜和氧化石墨烯基层状薄膜。简要介绍了两类石墨烯基分离膜的结构特点和制备方法，从理论和实验两方面详细探讨了其传质行为和机制，并重点对氧化石墨烯基层状薄膜的结构调控、性能优化方法及其水处理应用的研究进展进行了综述。最后，总结并展望了石墨烯基分离膜未来的发展趋势和面临的挑战。

Abstract:: The separation membranes, constructed with graphene and its derivatives (e.g., graphene oxide) as the building blocks, have unique laminar structures and tunable physicochemical properties, and therefore show promising applications in many areas such as water desalination, wastewater treatment and pervaporation. Based on their microstructure, the graphene-based membranes are classified into two typical forms: single-layered nanoporous graphene films and laminated graphene-oxide-based membranes. In this paper, the structural features and fabrication methods of both two types of membranes are briefly introduced, their mass transport behaviors and mechanisms are thoroughly discussed based on theoretical simulations and experimental results, and the recent progresses on their water treatment applications are reviewed with an emphasis on the structural modulation and property optimization of laminated graphene-oxide-based membranes. Finally, the research trends and challenges in the field of graphene-based separation membranes are discussed.