A two-dimensional montmorillonite membrane with carbon nanotube for fast and efficient separation of Li+ and Mg2+

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2025-03-24 DOI:10.1016/j.cplett.2025.142063

Licai Chen , Yunliang Zhao , Shutong Wang , Wenbo Wang , Lingjie Zhang , Tong Wen , Zhenlei Wang , Shuai Cheng , Yuhan Song , Tingting Zhang

引用次数: 0

Abstract

A membrane for fast and efficient separation of Li⁺ and Mg²⁺ was successfully prepared by constructing a thin montmorillonite nanosheets (MMTNS) interlayer with carbon nanotubes (CNTs) onto PES substrate. The introduction of MMTNS interlayer decreased the thickness of polyamide layer formed between polyethyleneimine and trimesoyl chloride as well as improved the hydrophilicity of membrane. CNTs expanded the interlayer spacing of MMTNS interlayer and shortened the length of water channels. The optimal CNTs/MMTNS/PA membrane demonstrated high Li⁺/Mg²⁺ separation performance with a selectivity of 20.71, and exhibited a permeability of 22.45 L m⁻² h⁻¹, nearly double that of MMTNS/PA membrane.

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.