Kinetic aspects of salinity stability of layer-by-layer polyelectrolyte nanofiltration membranes: Impact of soaking time, types of ions and crosslinking

doi:10.1016/j.memsci.2024.123087

	Kinetic aspects of salinity stability of layer-by-layer polyelectrolyte nanofiltration membranes: Impact of soaking time, types of ions and crosslinking
	Chen, Jiarui 1,2,3; He, Rongrong 3,4; Chen, Hao5 ; Hu, Binjie 1; Tokay, Begum 2; Zhang, Yue-biao5 ; He, Tao 3
	2024-09
发表期刊	JOURNAL OF MEMBRANE SCIENCE (IF:8.4[JCR-2023],8.1[5-Year])
ISSN	0376-7388
EISSN	1873-3123
卷号	709
发表状态	已发表
DOI	10.1016/j.memsci.2024.123087
摘要	Recent discovery of very high selectivity of Layer-by-Layer (LBL) nanofiltration (NF) membranes for mono/bivalent ions has attracted significant attention, especially for extraction of lithium from salt lake brines. Besides the exceptionally high selectivity, the salinity stability in highly saline solutions (HSS) that often occurred during NF has been largely neglected. Intuitively, because the LBL membranes are assembled in a saline background solution, the assembly disassembles in highly saline environments. To verify above argument, we reported here a comprehensive study on the performance of polystyrene sulfonate (PSS)/poly(diallyldimethylammonium chloride) (PDADMAC) and PSS/poly(allylamine) hydrochloride (PAH) LBL NF membranes in HSS by short/long term immersion and dynamic filtration. Greater binding strength of (PSS/PAH)2.5 corresponded to better salinity stability than (PSS/PDADMAC)2.5. Adsorption bridging of divalent Mg2+ with PSS altered PSS conformation and narrowing the pore size distribution. Compared to static immersion, dynamic filtration accelerated the loss of PEs from (PSS/PAH)2.5 at cLiCl = 2 mol/L, but membrane stability was improved by chemical crosslinking. This research highlighted the kinetic aspects in salinity stability and the chemical-physical behavior of polyelectrolyte complexes (PECs) in HSS. The results offer valuable insights for development of LBL NF membranes for ion separation and resource recovery. © 2024 The Authors
关键词	Chemical stability Chlorine compounds Crosslinking Magnesium compounds Microfiltration Nanofiltration Nanofiltration membranes Polyelectrolytes Pore size Self assembly Annealing High selectivity Ion bridging Kinetic aspects Layer by layer Layer by layer self assembly Layer-by-layer self-assembly Poly(styrene sulfonate) Saline solutions Salinity stability
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收录类别	SCI ; EI
语种	英语
资助项目	National Key Research and Devel-opment Program of China[2023YFB3810900] ; National Natural Science Foundation of China[
WOS研究方向	Engineering ; Polymer Science
WOS类目	Engineering, Chemical ; Polymer Science
WOS记录号	WOS:001279353800001
出版者	Elsevier B.V.
EI入藏号	20242916729563
EI主题词	Ions
EI分类号	801 Chemistry ; 802.1 Chemical Plants and Equipment ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 815.1.1 Organic Polymers ; 817.1 Polymer Products ; 931.2 Physical Properties of Gases, Liquids and Solids ; 933.1 Crystalline Solids ; 951 Materials Science
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/407231
专题	物质科学与技术学院物质科学与技术学院_PI研究组_章跃标组物质科学与技术学院_博士生
通讯作者	Hu, Binjie; He, Tao
作者单位	1.Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo; 315100, China; 2.Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham; NG7 2RD, United Kingdom; 3.Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai; 201210, China; 4.University of Chinese Academy of Sciences, Beijing; 100049, China; 5.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China
推荐引用方式 GB/T 7714	Chen, Jiarui,He, Rongrong,Chen, Hao,et al. Kinetic aspects of salinity stability of layer-by-layer polyelectrolyte nanofiltration membranes: Impact of soaking time, types of ions and crosslinking[J]. JOURNAL OF MEMBRANE SCIENCE,2024,709.
APA	Chen, Jiarui.,He, Rongrong.,Chen, Hao.,Hu, Binjie.,Tokay, Begum.,...&He, Tao.(2024).Kinetic aspects of salinity stability of layer-by-layer polyelectrolyte nanofiltration membranes: Impact of soaking time, types of ions and crosslinking.JOURNAL OF MEMBRANE SCIENCE,709.
MLA	Chen, Jiarui,et al."Kinetic aspects of salinity stability of layer-by-layer polyelectrolyte nanofiltration membranes: Impact of soaking time, types of ions and crosslinking".JOURNAL OF MEMBRANE SCIENCE 709(2024).