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具有增强脱盐性能和耐氯性的氧化石墨烯复合正渗透膜

Graphene Oxide Incorporated Forward Osmosis Membranes With Enhanced Desalination Performance and Chlorine Resistance.

作者信息

Li Zhanguo, Wang Yi, Han Mengwei, Wang Dayong, Han Shitong, Liu Zequn, Zhou Ningyu, Shang Ran, Xie Chaoxin

机构信息

State Key Lab of NBC Protect for Civilian, Beijing, China.

Water Industry and Environment Engineering Technology Research Centre, Chongqing, China.

出版信息

Front Chem. 2020 Jan 10;7:877. doi: 10.3389/fchem.2019.00877. eCollection 2019.

DOI:10.3389/fchem.2019.00877
PMID:31998681
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6965320/
Abstract

In this work, grapheme oxide (GO) nano-sheets were synthesized and dispersed in the aqueous phase for the interfacial polymerization (IP) process to develop a new type of thin-film composite (TFC) membranes for forward osmosis (FO) applications. The effects of the GO concentrations on the membrane surfaces and cross-sectional morphologies and FO desalination performances of the as-prepared TFC membranes were investigated systematically. Compared with the control membrane, the optimal GO-incorporated TFC membrane displayed higher water flux, less specific reverse solute flux (SRSF) and lower structure parameter. Moreover, the optimized membrane showed 75.0 times higher chlorine resistance than the control membrane. In general, these new type of membranes could be an effective strategy to fabricate high-performance FO membranes with good desalination performance and chlorine resistance.

摘要

在本工作中，合成了氧化石墨烯（GO）纳米片并将其分散在水相中用于界面聚合（IP）过程，以开发一种用于正向渗透（FO）应用的新型薄膜复合（TFC）膜。系统研究了GO浓度对所制备的TFC膜的膜表面和横截面形态以及FO脱盐性能的影响。与对照膜相比，最佳的含GO的TFC膜表现出更高的水通量、更低的比反向溶质通量（SRSF）和更低的结构参数。此外，优化后的膜的耐氯性比对照膜高75.0倍。总体而言，这些新型膜可能是制备具有良好脱盐性能和耐氯性的高性能FO膜的有效策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/5de4e5025562/fchem-07-00877-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/cb24d3f4db1e/fchem-07-00877-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/1db1214b3c0a/fchem-07-00877-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/f0de2b87801b/fchem-07-00877-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/3a5f3e6c9cdc/fchem-07-00877-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/5a8cca112927/fchem-07-00877-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/e30447045a11/fchem-07-00877-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/e71f58721634/fchem-07-00877-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/8effe684f1ef/fchem-07-00877-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/5de4e5025562/fchem-07-00877-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/cb24d3f4db1e/fchem-07-00877-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/1db1214b3c0a/fchem-07-00877-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/f0de2b87801b/fchem-07-00877-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/3a5f3e6c9cdc/fchem-07-00877-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/5a8cca112927/fchem-07-00877-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/e30447045a11/fchem-07-00877-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/e71f58721634/fchem-07-00877-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/8effe684f1ef/fchem-07-00877-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3510/6965320/5de4e5025562/fchem-07-00877-g0009.jpg

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