Tailoring microstructure of silica xerogels via a facile synthesis approach

Pang, Suh Cem and Sze, Yun Kho and Suk, Fun Chin (2013) Tailoring microstructure of silica xerogels via a facile synthesis approach. Journal of Materials and Environmental Science, 4 (5). pp. 744-751. ISSN 2028-2508

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Abstract

Silica xerogels of tailored microstructure were prepared via a facile synthesis approach. This approach entails the preparation of silica nanoparticles using the sol-gel method under the influence of low frequency ultra-sonication. By applying optimum synthesis conditions, silica nanoparticles of tailored mean sizes in the form of silica sol type B (158.3 ± 14.1 nm), and silica sol type M (83.1 ± 22.5 nm) were successfully synthesized. The various mean particle sizes were then mixed in predetermined molar ratios, and subsequently gelation under controlled conditions. The effect of adding polyvinyl pyrrolidone (PVP) as a polymeric surfactant on the microstructure of silica xerogels was also investigated.

Item Type: Article
Uncontrolled Keywords: Mean particle size; Silica xerogels; Surfactant, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: Q Science > QR Microbiology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Saman
Date Deposited: 18 May 2017 01:42
Last Modified: 18 May 2017 01:42
URI: http://ir.unimas.my/id/eprint/16313

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