Journal
MATERIALS SCIENCE-POLAND
Volume 33, Issue 1, Pages 47-55Publisher
SCIENDO
DOI: 10.1515/msp-2015-0008
Keywords
silica sand; SiO2 nanoparticles; quartz and cristobalite phases
Categories
Funding
- Institut Teknologi Sepuluh Nopember of Surabaya (ITS)
- Universitas Negeri Surabaya (UNESA)
- Ministry of Education and Culture of Indonesian Republic
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In this study, extraction and synthesis of SiO2 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 SiO2 nanoparticles. The SiO2 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 SiO2 nanoparticles.
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