TY - JOUR
T1 - Rice husk waste into various template-engineered mesoporous silica materials for different applications
T2 - A comprehensive review on recent developments
AU - Gebretatios, Amanuel Gidey
AU - Kadiri Kanakka Pillantakath, Abdul Rasheed
AU - Witoon, Thongthai
AU - Lim, Jun Wei
AU - Banat, Fawzi
AU - Cheng, Chin Kui
N1 - Funding Information:
This project receives financial support from Khalifa University of Science and Technology via FSU-2021-003 grant. CKC also likes to acknowledge grant No. RC2-2018-024 provided by the university to CeCaS research center . A.G. Gebretatios would also like to thank Khalifa University of Science and Technology for the full PhD scholarship.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/1
Y1 - 2023/1
N2 - Following the discovery of Stöber silica, the realm of morphology-controlled mesoporous silica nanomaterials like MCM-41, SBA-15, and KCC-1 has been expanded. Due to their high BET surface area, tunable pores, easiness of functionalization, and excellent thermal and chemical stability, these materials take part a vital role in the advancement of techniques and technologies for tackling the world's largest challenges in the area of water and the environment, energy storage, and biotechnology. Synthesizing these materials with excellent physicochemical properties from cost-efficient biomass wastes is a foremost model of sustainability. Particularly, SiO2 with a purity >98% can be obtained from rice husk (RH), one of the most abundant biomass wastes, and can be template engineered into various forms of mesoporous silica materials in an economic and eco-friendly way. Hence, this review initially gives insight into why to valorize RH into value-added silica materials. Then the thermal, chemical, hydrothermal, and biological methods of high-quality silica extraction from RH and the principles of synthesis of mesoporous and fibrous mesoporous silica materials like SBA-15, MCM-41, MSNs, and KCC-1 are comprehensively discussed. The potential applications of rice husk-derived mesoporous silica materials in catalysis, drug delivery, energy, adsorption, and environmental remediation are explored. Finally, the conclusion and the future outlook are briefly highlighted.
AB - Following the discovery of Stöber silica, the realm of morphology-controlled mesoporous silica nanomaterials like MCM-41, SBA-15, and KCC-1 has been expanded. Due to their high BET surface area, tunable pores, easiness of functionalization, and excellent thermal and chemical stability, these materials take part a vital role in the advancement of techniques and technologies for tackling the world's largest challenges in the area of water and the environment, energy storage, and biotechnology. Synthesizing these materials with excellent physicochemical properties from cost-efficient biomass wastes is a foremost model of sustainability. Particularly, SiO2 with a purity >98% can be obtained from rice husk (RH), one of the most abundant biomass wastes, and can be template engineered into various forms of mesoporous silica materials in an economic and eco-friendly way. Hence, this review initially gives insight into why to valorize RH into value-added silica materials. Then the thermal, chemical, hydrothermal, and biological methods of high-quality silica extraction from RH and the principles of synthesis of mesoporous and fibrous mesoporous silica materials like SBA-15, MCM-41, MSNs, and KCC-1 are comprehensively discussed. The potential applications of rice husk-derived mesoporous silica materials in catalysis, drug delivery, energy, adsorption, and environmental remediation are explored. Finally, the conclusion and the future outlook are briefly highlighted.
KW - Mesoporous silica
KW - Rice husk
KW - Rice husk ash
KW - Silica
KW - Sustainability
KW - Template-engineered silica
UR - https://www.scopus.com/pages/publications/85140334188
U2 - 10.1016/j.chemosphere.2022.136843
DO - 10.1016/j.chemosphere.2022.136843
M3 - Article
C2 - 36243081
AN - SCOPUS:85140334188
SN - 0045-6535
VL - 310
JO - Chemosphere
JF - Chemosphere
M1 - 136843
ER -
