期刊
NEW JOURNAL OF CHEMISTRY
卷 40, 期 6, 页码 5448-5457出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nj03479e
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资金
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Department of Science and Technology (DST)
- Council of Scientific and Industrial Research (CSIR)
- Sheikh Saqr Laboratory
- DST [SR/S2/RJN-24/2010]
- CSIR [01(2787)/14/EMR-11]
NiSb nanoparticles confined in SBA-15 are found to be highly efficient catalysts for nitroarene reduction reactions. The NiSb/SBA-15 catalysts with different chemical compositions were prepared using an adsorption-reduction method and were well characterized by XRD, N-2 sorption, UV-Vis, ICP-OES, SEM, TEM and EDAX. The effect of different metal concentrations of Ni and Sb on the formation of NiSb alloy nanoparticles on SBA-15 was investigated. The XRD, UV and TEM images confirmed the formation of uniform NiSb nanoparticles of size 4-6 nm on the SBA-15 support. The synthesized catalysts were screened for the nitroarene reduction using NaBH4. The NiSb/SBA-15 catalyst showed excellent catalytic activity compared to NiSb nanoparticles of different particle sizes in p-nitrophenol reduction. The NiSb/SBA-15 catalyst showed superior catalytic activity compared to any Ni nanoparticle catalysts reported so far. The NiSb/SBA-15 catalyst showed enhanced catalytic activity towards the reduction of various nitroarenes compared to Ni/SBA-15.
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