Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator

Silica gel is a solid adsorbent known for its unique property of changing color as it adsorbs moisture. The main component in the production of silica gel is sodium silicate, which can be derived from natural raw materials such as sugarcane bagasse ash, rice husk ash and coconut shell. In this study...

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Main Authors: Pooneh Abachi, Reza Khoshbin, Ramin Karimzadeh
Format: Article
Language:English
Published: University of Tehran 2024-12-01
Series:Journal of Chemical and Petroleum Engineering
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Online Access:https://jchpe.ut.ac.ir/article_98531_389f42da3c3d2b424298d39a87619ac2.pdf
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author Pooneh Abachi
Reza Khoshbin
Ramin Karimzadeh
author_facet Pooneh Abachi
Reza Khoshbin
Ramin Karimzadeh
author_sort Pooneh Abachi
collection DOAJ
description Silica gel is a solid adsorbent known for its unique property of changing color as it adsorbs moisture. The main component in the production of silica gel is sodium silicate, which can be derived from natural raw materials such as sugarcane bagasse ash, rice husk ash and coconut shell. In this study, sodium silicate was extracted from rice husk ash (RHA), followed by the synthesis of silica gel using the sol-gel method. The resulting silica gel was then colored orange using iron (ⅠⅠⅠ) chloride salt. FE-SEM image showed a homogeneous distribution of particle size and color on the surface of the silica gel. The BET surface area of orange silica gels synthesized from commercial sodium silicate and RHA (Aging time = 24 hours) was found to be 248.6 and 179.86 m2/gr, respectively but the high Smeso/Smicro in silica gel from rice husk ash contributes to its suitable moisture adsorption capacity compared to silica gel from industrial sodium silicate.
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institution Kabale University
issn 2423-673X
2423-6721
language English
publishDate 2024-12-01
publisher University of Tehran
record_format Article
series Journal of Chemical and Petroleum Engineering
spelling doaj-art-0eb3288f744140f6985f4374d7962a7d2025-01-21T14:29:49ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212024-12-0158234735710.22059/jchpe.2024.374035.149398531Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt IndicatorPooneh Abachi0Reza Khoshbin1Ramin Karimzadeh2Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran.Department of Chemical and Materials Engineering, Buein Zahra Technical University, Buein Zahra, Qazvin, IranFaculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran.Silica gel is a solid adsorbent known for its unique property of changing color as it adsorbs moisture. The main component in the production of silica gel is sodium silicate, which can be derived from natural raw materials such as sugarcane bagasse ash, rice husk ash and coconut shell. In this study, sodium silicate was extracted from rice husk ash (RHA), followed by the synthesis of silica gel using the sol-gel method. The resulting silica gel was then colored orange using iron (ⅠⅠⅠ) chloride salt. FE-SEM image showed a homogeneous distribution of particle size and color on the surface of the silica gel. The BET surface area of orange silica gels synthesized from commercial sodium silicate and RHA (Aging time = 24 hours) was found to be 248.6 and 179.86 m2/gr, respectively but the high Smeso/Smicro in silica gel from rice husk ash contributes to its suitable moisture adsorption capacity compared to silica gel from industrial sodium silicate.https://jchpe.ut.ac.ir/article_98531_389f42da3c3d2b424298d39a87619ac2.pdfadsorbentiron (ⅰⅰⅰ) chloride saltmoisturerhasilica gel
spellingShingle Pooneh Abachi
Reza Khoshbin
Ramin Karimzadeh
Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
Journal of Chemical and Petroleum Engineering
adsorbent
iron (ⅰⅰⅰ) chloride salt
moisture
rha
silica gel
title Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
title_full Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
title_fullStr Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
title_full_unstemmed Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
title_short Synthesis of Orange Colored Silica Gel Based on Rice Husk Ash by Using Iron Salt Indicator
title_sort synthesis of orange colored silica gel based on rice husk ash by using iron salt indicator
topic adsorbent
iron (ⅰⅰⅰ) chloride salt
moisture
rha
silica gel
url https://jchpe.ut.ac.ir/article_98531_389f42da3c3d2b424298d39a87619ac2.pdf
work_keys_str_mv AT poonehabachi synthesisoforangecoloredsilicagelbasedonricehuskashbyusingironsaltindicator
AT rezakhoshbin synthesisoforangecoloredsilicagelbasedonricehuskashbyusingironsaltindicator
AT raminkarimzadeh synthesisoforangecoloredsilicagelbasedonricehuskashbyusingironsaltindicator