Green synthesis of metal oxide nanoparticles and their catalytic activity for the reduction of aldehydes |
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| Institution: | 1. a Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India;2. b Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India;2. Department of Microbiology, School of Life Science and Biotechnology, Adamas University, West Bengal, India;1. Department of Chemistry, Jeppiaar Engineering College, Chennai 100119, India;2. Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College (Autonomous), Chennai 600034, India;3. UNESCO-UNISA Africa, Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa;4. Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa;5. Department of Physics, Khadir Mohideen College, Adirampattinam, India;6. Materials Division, School of Advanced Sciences, Vellore Institute of Technology (VIT) University, Chennai Campus, Chennai 600 127, India |
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| Abstract: | In the present work, a green synthesis of Metal Oxide nanoparticles was demonstrated using the freshly prepared aqueous extract of the immature fruit of Cocos nucifera and the MO nanoparticles were characterized by the analytical techniques such as UV–vis, FT-IR, XRD, SEM, TEM and EDAX. Characterization techniques confirmed that the biomolecules involved in the formation of nanoparticles and also they stabilized the nanoparticles. The synthesized MO nanoparticles were used as catalysts for the reduction of aromatic aldehydes. The reduction was done at mild reaction conditions using ammonium formate as a green hydrogen donor and the corresponding alcohols were obtained in 2–24 h with excellent yields. The reduction reaction was optimized using various solvents, loading of catalyst and at different temperatures. |
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| Keywords: | Metal oxide nanoparticles Reduction Aldehyde Nanocatalysis |
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