文章信息/Info

Title:

Research Progress of Graphene�睟ased Separation Membranes

作者:

張晴; 任文才; 成會明

(中國科學院金屬研究所，沈陽材料科學國家研究中心，遼寧 沈陽 110000)

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)

關鍵詞:

石墨烯; 氧化石墨烯; 分離膜; 納米孔石墨烯薄膜; 氧化石墨烯基層狀薄膜; 液相分離

Keywords:

graphene;  graphene oxide;  separation membranes;  nanoporous graphene films;  graphene oxide�瞓ased laminated membrane;  liquid phase separation

分類號:

TQ051.8+93

DOI:

10.7502/j.issn.1674-3962.201906005

文獻標志碼:

A

摘要:

以石墨烯及其衍生物作為基本單元構筑的分離膜，由于獨特的孔結構和離子分子篩分特性，在海水淡化、污水處理、滲透蒸發等領域表現出潛在的應用價值。根據石墨烯基分離膜的結構特點，可以將其歸類為納米孔石墨烯薄膜和氧化石墨烯基層狀薄膜。簡要介紹了兩類石墨烯基分離膜的結構特點和制備方法，從理論和實驗兩方面詳細探討了其傳質行為和機制，并重點對氧化石墨烯基層狀薄膜的結構調控、性能優化方法及其水處理應用的研究進展進行了綜述。最后，總結并展望了石墨烯基分離膜未來的發展趨勢和面臨的挑戰。

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.