TY - JOUR ID - 163267 TI - Recent use of rice husk ash silica as an efficient solid catalyst: a review JO - Asian Journal of Green Chemistry JA - AJGC LA - en SN - 2588-5839 AU - Saoudi, Muna Hasson AU - Hello, Kasim Mohammed AD - Biology Department, College of Science, Al-Muthanna University, AL-Muthanna province, Iraq AD - Chemistry Department, College of Science, Al-Muthanna University, AL-Muthanna province, Iraq Y1 - 2022 PY - 2022 VL - 6 IS - 4 SP - 370 EP - 387 KW - Silica KW - Rice Husk Ash KW - Catalyst KW - Biomass DO - 10.22034/ajgc.2022.4.6 N2 - This review is mainly focused on the recent development of rice husk utilization for the efficient immobilization of organic molecules. It was pointed out that sodium silicate precursor was prepared in large amounts from rice husk ash. Moreover, a new route was designed for the extracted sodium silicate through a purely homogenous method in-situ reaction of 3-(chloropropyl)triethoxysilane (CPTES) with silica. The product was solid silica with chloride end groups. The silica-chloride end groups are the cornerstone for the design of heterogeneous catalyses with the specific functional groups for different purposes. These functionalized silica catalysts have attracted widespread attention due to their good physical and catalytic properties in a large variety of chemical reactions. UR - https://www.ajgreenchem.com/article_163267.html L1 - https://www.ajgreenchem.com/article_163267_b5b3fb511ac4bca764024da3dcb95fdb.pdf ER -