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Preparation of high purity SiO2 from Rice Husk

A high purity silicon dioxide (97.08%) was obtained by atmosphere thermal decomposition of the acetic acid leached rice husk at 800°C for 15 minutes. Leaching process parameters such as pH of the acid solution, leaching temperature and time were varied. Analysis of all the acid leached thermal decom...

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Main Author: Mohd Razif Mohd Shariff
Other Authors: San Myint, Prof. Dr (Advisor)
Format:
Language:English
Published: Universiti Malaysia Perlis 2009
Subjects:
Silicon oxide
Silicon
Silica
Rice husk
Agricultural waste
Decomposition (Chemistry)
Rice husk > Testing
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/4854
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spelling my.unimap-48542009-03-02T03:54:07Z Preparation of high purity SiO2 from Rice Husk Mohd Razif Mohd Shariff San Myint, Prof. Dr (Advisor) Silicon oxide Silicon Silica Rice husk Agricultural waste Decomposition (Chemistry) Rice husk -- Testing A high purity silicon dioxide (97.08%) was obtained by atmosphere thermal decomposition of the acetic acid leached rice husk at 800°C for 15 minutes. Leaching process parameters such as pH of the acid solution, leaching temperature and time were varied. Analysis of all the acid leached thermal decomposed samples were made using Scanning Electron Microscopy with Energy Dispersive X-ray Spectrometer (SEM-EDS), X-ray Diffractrometer (XRD) and Atomic Absorption Spectrometer (AAS).The result from XRD showed the samples were amorphous silica as indicated by broaden peaks around (2Ө = 22°). The SEM microgram indicates almost complete formation of SiO2 in thermal decomposition. The EDX analysis results showed the highest SiO2 (97.08%) for pH 4 acid acetic leached solution at room temperature for 3 days without stirring. The AAS results of trace impurities content of Ca, Mg, K and Na in the silicon dioxide extract, high percent leachible efficiency of acetic acid than 90% for all the inorganic compound. 2009-03-02T03:54:07Z 2009-03-02T03:54:07Z 2008-04 http://hdl.handle.net/123456789/4854 en Universiti Malaysia Perlis School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Silicon oxide
Silicon
Silica
Rice husk
Agricultural waste
Decomposition (Chemistry)
Rice husk -- Testing
spellingShingle Silicon oxide
Silicon
Silica
Rice husk
Agricultural waste
Decomposition (Chemistry)
Rice husk -- Testing
Mohd Razif Mohd Shariff
Preparation of high purity SiO2 from Rice Husk
description A high purity silicon dioxide (97.08%) was obtained by atmosphere thermal decomposition of the acetic acid leached rice husk at 800°C for 15 minutes. Leaching process parameters such as pH of the acid solution, leaching temperature and time were varied. Analysis of all the acid leached thermal decomposed samples were made using Scanning Electron Microscopy with Energy Dispersive X-ray Spectrometer (SEM-EDS), X-ray Diffractrometer (XRD) and Atomic Absorption Spectrometer (AAS).The result from XRD showed the samples were amorphous silica as indicated by broaden peaks around (2Ө = 22°). The SEM microgram indicates almost complete formation of SiO2 in thermal decomposition. The EDX analysis results showed the highest SiO2 (97.08%) for pH 4 acid acetic leached solution at room temperature for 3 days without stirring. The AAS results of trace impurities content of Ca, Mg, K and Na in the silicon dioxide extract, high percent leachible efficiency of acetic acid than 90% for all the inorganic compound.
author2 San Myint, Prof. Dr (Advisor)
author_facet San Myint, Prof. Dr (Advisor)
Mohd Razif Mohd Shariff
format
author Mohd Razif Mohd Shariff
author_sort Mohd Razif Mohd Shariff
title Preparation of high purity SiO2 from Rice Husk
title_short Preparation of high purity SiO2 from Rice Husk
title_full Preparation of high purity SiO2 from Rice Husk
title_fullStr Preparation of high purity SiO2 from Rice Husk
title_full_unstemmed Preparation of high purity SiO2 from Rice Husk
title_sort preparation of high purity sio2 from rice husk
publisher Universiti Malaysia Perlis
publishDate 2009
url http://dspace.unimap.edu.my/xmlui/handle/123456789/4854
_version_ 1643788254490656768
score 13.222552

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