Ion exchange: An essential piece in the fabrication of zeolite adsorbents

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-06-04 DOI:10.1039/d5cp00894h

Chenxin Li, Tiesen Li, Qingyan Cui, Tinghai Wang, Chan Wang, Jiao Yang, Jie Shi, Xiaojun Bao, Yuanyuan Yue

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引用次数: 0

Abstract

Adsorptive separation, which relies on the size, polarity, and affinity of guest molecules, is an efficient, eco-friendly, and cost-effective method. Zeolite-based adsorbents, known for their uniform pore size and regenerability, have exhibited exceptional performance in many challenging adsorption processes, such as the separation of n-paraffin/i-paraffin and xylene isomers. Ion exchange, as an essential piece in the fabrication of zeolite-based adsorbents, significantly affects overall performance. In this review, we survey the recent key developments and issues within ion exchange research of zeolite-based adsorbents, including the solution pH, solution concentration, ion-exchange cycles, ion-exchange temperature, ion-exchange time, calcination temperature, and discuss the mechanisms of their influence on zeolite adsorption. This review also elaborates on the negative effects of improper ion exchange on incomplete cation exchange, cation migration, collapse of the zeolite structure, and blockage of zeolite pores. Other parameters that lack of research but have been proven to affect ion exchange are also mentioned. We hope to generate interest in the wider community and encourage others to make use of ion exchange in tackling challenges of adsorption separation science and engineering.

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离子交换：在沸石吸附剂的制造中必不可少的一部分

吸附分离依赖于客体分子的大小、极性和亲和力，是一种高效、环保和经济的方法。沸石基吸附剂以其均匀的孔径和可再生性而闻名，在许多具有挑战性的吸附过程中表现出优异的性能，例如正石蜡/i石蜡和二甲苯异构体的分离。离子交换作为沸石基吸附剂制备过程中的重要环节，对其整体性能有重要影响。本文综述了近年来沸石基吸附剂离子交换研究的主要进展和问题，包括溶液pH、溶液浓度、离子交换周期、离子交换温度、离子交换时间、煅烧温度等，并讨论了它们对沸石吸附的影响机理。本文还阐述了不适当的离子交换对阳离子交换不完全、阳离子迁移、沸石结构崩溃、沸石孔隙堵塞等方面的负面影响。还提到了其他一些缺乏研究但已被证明对离子交换有影响的参数。我们希望在更广泛的社区中引起兴趣，并鼓励其他人利用离子交换来解决吸附分离科学和工程的挑战。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.