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Effect of wash solvents on salt removal in rice husk derived nano-silica

Precipitated nano-silica powders were prepared from rice husk ash by a method combining a sodium silicate based sol-gel process and traditional precipitation process. The transition of silica sol into silica gel (hydrogel) also produces undesirable sodium salt as a byproduct trapped in the gel micro...

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Main Authors: Abdul Halim, Zulhelmi Alif, M. Yajid, M. Azizi, Idris, M. Hasbullah
Format: Conference or Workshop Item
Published: 2019
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/89640/
http://dx.doi.org/10.1063/1.5089405
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spelling my.utm.896402021-02-22T06:08:26Z http://eprints.utm.my/id/eprint/89640/ Effect of wash solvents on salt removal in rice husk derived nano-silica Abdul Halim, Zulhelmi Alif M. Yajid, M. Azizi Idris, M. Hasbullah TJ Mechanical engineering and machinery Precipitated nano-silica powders were prepared from rice husk ash by a method combining a sodium silicate based sol-gel process and traditional precipitation process. The transition of silica sol into silica gel (hydrogel) also produces undesirable sodium salt as a byproduct trapped in the gel microscopic pores. Three types of wash solvents used for the salt removal process were tap water, water + ethanol, and water+acetone. The extent of salt removal achieved after the washing process was evaluated using scanning electron microscopy with energy dispersive X-ray (SEM-EDX), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Our initial investigation found that the water+ethanol mixture was most effective for salt removal. A reason for this could be that due to the lower surface tension of ethanol as compared to acetone, the mixture was more effective in penetrating the gel pores to dissolve the salt. 2019-02-06 Conference or Workshop Item PeerReviewed Abdul Halim, Zulhelmi Alif and M. Yajid, M. Azizi and Idris, M. Hasbullah (2019) Effect of wash solvents on salt removal in rice husk derived nano-silica. In: International Conference on X-Rays and Related Techniques in Research and Industry 2018, ICXRI 2018, 18 August 2018 through 19 August 2018, Grand Riverview Hotel Kota Bharu, Kelantan, Malaysia. http://dx.doi.org/10.1063/1.5089405
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Abdul Halim, Zulhelmi Alif
M. Yajid, M. Azizi
Idris, M. Hasbullah
Effect of wash solvents on salt removal in rice husk derived nano-silica
description Precipitated nano-silica powders were prepared from rice husk ash by a method combining a sodium silicate based sol-gel process and traditional precipitation process. The transition of silica sol into silica gel (hydrogel) also produces undesirable sodium salt as a byproduct trapped in the gel microscopic pores. Three types of wash solvents used for the salt removal process were tap water, water + ethanol, and water+acetone. The extent of salt removal achieved after the washing process was evaluated using scanning electron microscopy with energy dispersive X-ray (SEM-EDX), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Our initial investigation found that the water+ethanol mixture was most effective for salt removal. A reason for this could be that due to the lower surface tension of ethanol as compared to acetone, the mixture was more effective in penetrating the gel pores to dissolve the salt.
format Conference or Workshop Item
author Abdul Halim, Zulhelmi Alif
M. Yajid, M. Azizi
Idris, M. Hasbullah
author_facet Abdul Halim, Zulhelmi Alif
M. Yajid, M. Azizi
Idris, M. Hasbullah
author_sort Abdul Halim, Zulhelmi Alif
title Effect of wash solvents on salt removal in rice husk derived nano-silica
title_short Effect of wash solvents on salt removal in rice husk derived nano-silica
title_full Effect of wash solvents on salt removal in rice husk derived nano-silica
title_fullStr Effect of wash solvents on salt removal in rice husk derived nano-silica
title_full_unstemmed Effect of wash solvents on salt removal in rice husk derived nano-silica
title_sort effect of wash solvents on salt removal in rice husk derived nano-silica
publishDate 2019
url http://eprints.utm.my/id/eprint/89640/
http://dx.doi.org/10.1063/1.5089405
_version_ 1692991805564387328
score 13.211869

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