A review of rice husk silica as a heterogeneous catalyst support


  • Izzati Nasir University Malaysia Kelantan, Kampus Jeli,17600, Jeli, Kelantan, Malaysia.
  • Nadiah Ameram University Malaysia Kelantan, Kampus Jeli,17600, Jeli, Kelantan, Malaysia.
  • Arlina ALI University Malaysia Kelantan, Kampus Jeli,17600, Jeli, Kelantan, Malaysia.
  • Siti Roshayu HASSAN University Malaysia Kelantan, Kampus Jeli,17600, Jeli, Kelantan, Malaysia.
  • Nurul Akmar Che ZAUDIN University Malaysia Kelantan, Kampus Jeli,17600, Jeli, Kelantan, Malaysia.
  • Jamil MOHAMED SAPARI School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, Negeri Sembilan Branch, Kuala Pilah Campus, 72000 Kuala Pilah, Negeri Sembilan, Malaysia


Rice husk, Rice husk ash, Amorphous silica, Modified silica catalyst


The yield of amorphous silica has less residue of mineral content in rice husk (RH) and a high specific surface area through the simple alkaline extraction process at first, then acid precipitation of RH. At this time, the leaching process using alkali and calcination of RH is the best method to acquire amorphous silica with a high surface area. The different temperatures were used for the calcination of RH and continue with sodium hydroxide (NaOH) treatment by using different concentration. The sample titrated using hydrochloric acid (HCl) to extract silica. Pretreatment with acid leaching for the RH was also conducted before the calcination of the RH. Results acquired were analysed and compared.


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How to Cite

I. . Nasir, N. Ameram, A. . ALI, S. R. . HASSAN, N. A. C. . ZAUDIN, and J. MOHAMED SAPARI, “A review of rice husk silica as a heterogeneous catalyst support ”, J. Met. Mater. Miner., vol. 31, no. 4, pp. 1-12, Dec. 2021.



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