Armor strategy enables high temperature anti-swelling performance of 2D material based membranes by pre-protonation

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-03-20 DOI:10.1016/j.coco.2025.102349

Yi-Wei Li, Xinyu Ai, Ruixiang Guo, Yeming Zhai, Kai-Ge Zhou

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引用次数: 0

Abstract

Swelling significantly limits the performance and practical applications of two-dimensional (2D) membranes in aqueous environments. Here, we present an innovative "armor strategy" to enhance the anti-swelling performance of negatively charged 2D membranes, using vermiculite membranes (VM) as a model system. By spin-coating polyethyleneimine (PEI) onto the membrane surface and cross-linking with trimesoyl chloride (TMC), a robust protective layer was formed. The resulting VM-PEI-TMC membrane (VPTM) exhibits remarkable swelling resistance, with a swelling rate of only 0.83 %, compared to 23.70 % for unmodified VM. Practical applications of VPTM in ion sieving, dye rejection, and high-temperature operations demonstrated stable performance, with rejection rates of methylene blue (MB), rhodamine B (RB), and potassium ferricyanide (PF) exceeding 95 % at 80 °C. Furthermore, the universality of the armor strategy was established by applying it to graphene oxide membranes (GM), achieving a swelling rate reduction from 55.93 % to 5.02 %. These results highlight the versatility and effectiveness of the armor strategy, providing a promising pathway for developing high-performance, anti-swelling 2D membranes for environmental and energy applications.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.