文献类型：期刊文献

英文题名：Double Cross-Linking and Mos2 Intercalation Modified Go Membrane: Toward High Stability and High Permeability

作者：Mo, Jiawei[1]; Wang, Shuai[2]; Xie, Fei[1]; Liang, Shanshan[2]; Ma, Xiaohua[3]

机构：[1] School of Chemical Engineering, East China University of Science and Technology, Mei Long Road 130, Shanghai, 200237, China; [2] School of Physics, East China University of Science and Technology, Mei Long Road 130, Shanghai, 200237, China; [3] School of Materials Science and Engineering, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220421390)

语种：英文

外文关键词：Graphene - Layered semiconductors - Membranes - Molybdenum compounds - Nanosheets - Physicochemical properties - Sodium alginate - Stripping (dyes)

摘要：Graphene oxide (GO)-based membrane has shown great potential in water purification due to its unique physicochemical properties and high permeability. It remains a challenge to pursue highly permeable GO membranes without compromising stability. Here we employed sodium alginate (SA) together with Ca2+ as cross-linkers to double crosslink GO membrane to obtain stable GS membrane. Further, MoS2 nanosheets were inserted between GO nanosheets to obtain GSM membrane with high permeability. The double cross-linking and MoS2 intercalation modified GO membrane, GSM-1:4, showed high removal of multiple dyes (> 99%) and enhanced pure water permeance (112.5 L m?2 h?1 bar?1, 1.9 times and 5.8 times of the pure GO membrane and the double cross-linked GS-0.5 membrane, respectively). Meanwhile, the GSM-1:4 membrane demonstrated excellent stability in water and even in acid and alkali solutions. Our work provides new insights into the design of stable and highly efficient GO-based membranes with a two-dimensional layered structure for water treatment. ? 2022, The Authors. All rights reserved.