文献类型：期刊文献

英文题名：Bio-inspired graphene oxide-amino acid cross-linked framework membrane trigger high water permeance and high metal ions rejection

作者：Liu, Junfan[1];Wang, Shuai[2];Yang, Rujie[1,2];Li, Lu[3];Liang, Shanshan[2];Chen, Liang[1,4]

机构：[1]Zhejiang A&F Univ, Dept Environm & Resources, Hangzhou 311300, Peoples R China;[2]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[3]Zhejiang A&F Univ, Coll Chem & Mat Engn, Hangzhou 311300, Peoples R China;[4]Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China

年份：2022

卷号：659

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20222712329221);WOS:【SCI-EXPANDED(收录号:WOS:000826509300007)】；

基金：This work was supported by the National Natural Science Foundation of China (12004110, 11974366, 12074341, 12147169, 12004109) , and the Fundamental Research Funds for the Central Universities. The au-thors thank the staff members from BL06B beamline of Shanghai Syn-chrotron Radiation Facility (SSRF) for assistance during data collection.

语种：英文

外文关键词：Cross-linked GO membrane; Amino acids; Interlayer spacing; Water permeance; Nanofiltration

摘要：As increasing demand for wastewater treatment, membranes with excellent performance are still needed in recent years. Graphene-based membranes are promising candidates by virtue of their outstanding mechanical properties, chemically resistant and atomic thickness. In this work, a kind of membrane with nacre-like structure of the hydrothermal reduction graphene oxide (hrGO) cross-linked by amino acid were fabricated. The hrGOamino acid membranes exhibited both high water permeance and high metal ions rejection. Typically, when treated FeCl3 solutions, the hrGO membrane cross-linked by tryptophan (Trp) represented 191.0 L m-2 h-1 bar- 1 water permeance which is 4.4-fold higher than that of pristine GO membrane, and is superior to other NF membranes while still maintained at 98.2% FeCl3 rejection. Moreover, the hrGO-Trp membrane also exhibited a stable separation performance in a long time. Overall, our work reveals a facile method to realize ultrahigh water permeance of GO-based membranes for wastewater treatment.