Role of Sm3+ and Ce4+ on mesoporous rice husk silica for selective oxidation of benzyl alcohol to benzaldehyde
- Title
- Role of Sm3+ and Ce4+ on mesoporous rice husk silica for selective oxidation of benzyl alcohol to benzaldehyde
- Creator
- Selva Priya A.; Sunaja Devi K.R.; Venkatesha N.J.
- Description
- Silica was prepared from rice huskagricultural wasteby soaking and pyrolysis method. Ceria and samaria were impregnated on silica by rotavapor-assisted impregnation method. The physicochemical properties of CeSm/Si catalyst were determined by BET, FT-IR, XRD, SEM, EDX, and n-butylamine titration. Catalytic activity was evaluated by oxidation of benzyl alcohol (Bzl-OH) to benzaldehyde (B-CHO) using H2O2 as an oxidant in acetonitrile medium. Different reaction parameters like time, temperature, solvent, and catalyst amount on the reaction were also studied. Among the various catalysts, 50Ce50Sm/Si showed the impressive catalytic performance with a selectivity of 91.4% to benzaldehyde. The improved catalytic performance was attributed to the well dispersion of ceriasamaria on the surface of silica. These materials can be reused effectively up to four cycles without significant loss in their selectivity. Moreover, excellent selectivity of benzaldehyde in shorter duration using modified rice husk silica catalysts makes this protocol highly attractive and practically beneficial. [Figure not available: see fulltext.]. 2019, Australian Ceramic Society.
- Source
- Journal of the Australian Ceramic Society, Vol-56, No. 1, pp. 217-225.
- Date
- 2020-01-01
- Publisher
- Springer
- Subject
- Benzaldehyde; Benzyl alcohol; Ceriasamaria mixed oxide; Oxidation reaction; Rice husk silica
- Coverage
- Selva Priya A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Sunaja Devi K.R., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Venkatesha N.J., Department of Chemistry, Bangalore Institute of Technology, VV Puram, Bengaluru, 560004, Karnataka, India
- Rights
- Restricted Access
- Relation
- ISSN: 25101560
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Selva Priya A.; Sunaja Devi K.R.; Venkatesha N.J., “Role of Sm3+ and Ce4+ on mesoporous rice husk silica for selective oxidation of benzyl alcohol to benzaldehyde,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 26, 2025, https://archives.christuniversity.in/items/show/16357.