具有 2-5 纳米中孔的分层 NaY 沸石的制造和吸附特性

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL Chemical Physics Letters Pub Date : 2024-11-01 DOI:10.1016/j.cplett.2024.141732

Xu Gao , Aihu Feng , Le Mi , Yang Yu , Yun Yu

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引用次数: 0

摘要

吸附是控制挥发性有机化合物污染浓度的最有效方法之一。本研究通过 NH4HF2-蚀刻和表面活性剂模板工艺获得了尺寸可控的介孔范围为 2-5 nm 的分层 NaY 沸石。通过使用不同的阳离子表面活性剂（CnTAB），我们制备出了具有可控中孔的表面活性剂模板沸石，并提高了其对甲苯的吸附能力。此外，改性沸石的疏水性也得到了增强，在复杂的潮湿环境中仍能保持较高的吸附能力。

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Fabrication and adsorption properties of hierarchical NaY zeolite with mesopores in the range of 2–5 nm

Adsorption is one of the most effective methods for controlling the concentration of VOCs pollution. In this work, the hierarchical NaY zeolites with size-controlled mesopores in the range of 2–5 nm are obtained via NH₄HF₂-etching and surfactant-templating process. By using the different cationic surfactant (C_nTAB), we fabricate the surfactant-templated zeolite with controllable mesopores, and improve its adsorption capacity for toluene. In addition, the modified zeolite’s hydrophobicity is enhanced, and it maintains a high adsorption capacity in a complex humid environment.

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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.