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Effect of rice husk firing temperature on synthesis of silica (Si02)

Ismail, N. A. A. and Azmi, Mohd Azham and Ahmad, Sufizar and Mohd Taib, Hariati (2014) Effect of rice husk firing temperature on synthesis of silica (Si02). In: International Conference on X-Ray & Related Technique in Research and Industry (ICXRI2014), 11-13 August 2014 , Johor Bahru, Johor.


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This paper presents the synthesis of silica (SO2) from rice husk at different firing temperatures. Due to the environmental awareness and to reduce air pollution, agricultural wastes specifically rice husk is used to produce SO2. Silica was prepared by washing with clean water without any chemical treatment. The rice husk was fired at 700, 800,900, 1000, 1 100 and 1200°C. In order to determine the effect of firing rice husk at different temperature, X-ray Diffraction (XRD) analyses were conducted. Crystalline silica were obtained at 1 1 OO°C and 1200°C firing temperature. At 900°C and 1000°C firing temperature, silica was observed to be in a transitional phase of amorphous into crystalline or it called as semi crystalline. However, at 700°C and 800°C silica remains to be in amorphous phases.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: rice husk; crystalline silica; amorphous silica; X-ray diffraction (XRD)
Subjects: T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 10 Nov 2014 02:32
Last Modified: 10 Nov 2014 02:32
URI: http://eprints.uthm.edu.my/id/eprint/5888
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