Tailoring MCM-41 mesoporous silica particles through modified sol-gel process for gas separation

Sang, W.Y. and Ching, O.P. (2018) Tailoring MCM-41 mesoporous silica particles through modified sol-gel process for gas separation. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 42 (1). pp. 46-56. ISSN 22897879

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Abstract

Mobil Composition of Matter-41 (MCM-41) is recognized as a potential filler to enhance permeability of mixed matrix membrane (MMM). However, the required loading for available micron-sized MCM-41 was considerably high in order to achieve desired separation performance. In this work, reduced-size MCM-41 was synthesized to minimize filler loading, improve surface modification and enhance polymer-filler compatibility during membrane fabrication. The effect of reaction condition, stirring rate and type of post-synthesis washing solution used on particle diameter of resultant MCM-41 were investigated. It was found that MCM-41 produced at room temperature condition yielded particles with smaller diameter, higher specific surface area and enhanced mesopore structure. Increase of stirring rate up to 500 rpm during synthesis also reduced the particle diameter. In addition, replacing water with methanol as the post-synthesis washing solution to remove bromide ions from the precipitate was able to further reduce the particle size by inhibiting polycondensation reaction. It was also noticed that particle diameter of MCM-41 is optimized with 15 hours of calcination. © 2018 Penerbit Akademia Baru - All rights reserved.

Item Type: Article
Additional Information: cited By 2
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:37
Last Modified: 09 Nov 2023 16:37
URI: https://khub.utp.edu.my/scholars/id/eprint/10517

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