气候变化领域集成服务门户(CCPortal): Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination

CCPortal

DOI	10.1073/pnas.2022200118
	Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination
	Di Vincenzo M.; Tiraferri A.; Musteata V.-E.; Chisca S.; Deleanu M.; Ricceri F.; Cot D.; Nunes S.P.; Barboiu M.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:37
英文摘要	Membrane-based technologies have a tremendous role in water purification and desalination. Inspired by biological proteins, artificial water channels (AWCs) have been proposed to overcome the permeability/selectivity trade-off of desalination processes. Promising strategies exploiting the AWC with angstrom-scale selectivity have revealed their impressive performances when embedded in bilayer membranes. Herein, we demonstrate that self-assembled imidazole-quartet (I-quartet) AWCs are macroscopically incorporated within industrially relevant reverse osmosis membranes. In particular, we explore the best combination between I-quartet AWC and m-phenylenediamine (MPD) monomer to achieve a seamless incorporation of AWC in a defect-free polyamide membrane. The performance of the membranes is evaluated by crossflow filtration under real reverse osmosis conditions (15 to 20 bar of applied pressure) by filtration of brackish feed streams. The optimized bioinspired membranes achieve an unprecedented improvement, resulting in more than twice (up to 6.9 L·m-2·h-1·bar-1) water permeance of analogous commercialmembranes,whilemaintaining excellent NaCl rejection (>99.5%). They show also excellent performance in the purification of low-salinity water under low-pressure conditions (6 bar of applied pressure) with fluxes up to 35 L·m-2·h-1and 97.5 to 99.3% observed rejection. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Artificial water channels; Biomimetic membranes; Desalination
语种	英语
scopus关键词	1,3 phenylenediamine; imidazole; monomer; polyamide; sodium chloride; Article; crossflow filtration; desalination; reverse osmosis; salinity; water flow; water management; water permeability; water transport
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238391
作者单位	Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, University of Montpellier, École Nationale Supérieure de Chimie de Montpellier, CNRS, Montpellier, F-34095, France; Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Torino, 10129, Italy; Biological and Environmental Science and Engineering Division, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
推荐引用方式 GB/T 7714	Di Vincenzo M.,Tiraferri A.,Musteata V.-E.,et al. Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination[J],2021,118(37).
APA	Di Vincenzo M..,Tiraferri A..,Musteata V.-E..,Chisca S..,Deleanu M..,...&Barboiu M..(2021).Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination.Proceedings of the National Academy of Sciences of the United States of America,118(37).
MLA	Di Vincenzo M.,et al."Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination".Proceedings of the National Academy of Sciences of the United States of America 118.37(2021).