Synthesis of SiO 2 nanopowders containing quartz and cristobalite phases from silica sands

In this study, extraction and synthesis of SiO 2 nanoparticles from silica sands have been conducted by means of two different methods, i.e. dry method (method 1) and hydrothermal process (method 2). The basic difference between the two methods is in the extraction step. The two methods were compare...

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Bibliographic Details
Published in:Materials science--Poland 2015-03, Vol.33 (1), p.47-55
Main Authors: Munasir, Triwikantoro, Zainuri, Mochamad, Darminto
Format: Article
Language:English
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Summary:In this study, extraction and synthesis of SiO 2 nanoparticles from silica sands have been conducted by means of two different methods, i.e. dry method (method 1) and hydrothermal process (method 2). The basic difference between the two methods is in the extraction step. The two methods were compared in terms of being more efficient, economical, and superior in obtaining SiO 2 nanoparticles. The SiO 2 nanoparticles were characterized in terms of phase purity, crystallinity, Si-O functional bonding as well as particles size and morphology. The most interesting fact in this study was the formation of both quartz and cristobalite phases within all prepared SiO 2 nanoparticles.
ISSN:2083-134X
2083-134X
DOI:10.1515/msp-2015-0008