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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (5): 1777-1789.DOI: 10.16552/j.cnki.issn1001-1625.2025.1018

• Functional Materials • Previous Articles     Next Articles

Research Progress on Preparation of Hydrophobic Modification Zeolite and Its Application in Gas Purification Field

ZHU Hang(), LI Yan(), LI Yi, WANG Bo, WU Yanan, ZHANG Wei, LIU Wenjia, LI Ping, ZHANG Ke   

  1. Institute for Hygiene of Ordnance Industry,Xi’an 710065,China
  • Received:2025-10-20 Revised:2025-11-26 Online:2026-05-15 Published:2026-06-10
  • Contact: LI Yan

Abstract:

Zeolite is widely used in the field of gas separation and purification due to their regular microporous structure, high specific surface area and excellent adsorption selectivity. However, the surface of traditional zeolite is rich in silicon hydroxyl(—Si—OH ) and aluminum hydroxyl(—Al—OH ), and it is easy to adsorb water molecules preferentially in high humidity gas system, which will lead to pore blockage and decrease of adsorption capacity of target gas, thus seriously limiting the applicability of zeolite to complex working conditions. The surface chemical properties and pore environment of zeolite can be regulated by hydrophobic modification, which can significantly improve the water resistance of zeolite and become the core technology to solve this problem. In this paper, the hydrophobic modification methods of zeolite (such as silane coupling agent modification, surface coating modification, dealumination modification and multi-method synergistic modification) are systematically reviewed, and the mechanism and modification effect of each method are expounded. The application progress of hydrophobic modification zeolite in CO2 capture, volatile organic compounds (VOCs) removal and other pollutant purification is emphatically analyzed. Finally, the problems in the preparation of hydrophobic modification zeolite and its application in gas purification are put forward, and the development trend of hydrophobic modification zeolite is prospected.

Key words: zeolite, hydrophobic modification, preparation method, gas purification, adsorption performance

CLC Number: