Photocatalytic Hydrogenation of Nitroarenes: Supporting Effect of CoOx on TiO2 nanoparticles

Amanchi, Srinivasa Rao and K, V Ashok Kumar and Bhairi, Lakshminarayana and G, Satyanarayana and Ch, Subrahmanyam (2019) Photocatalytic Hydrogenation of Nitroarenes: Supporting Effect of CoOx on TiO2 nanoparticles. New Journal of Chemistry (2). pp. 1-16. ISSN 1144-0546

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Abstract

The visible light active photo-catalysts cobalt oxide supported on TiO2 nanoparticles with varying the amount of cobalt oxide [3% CoOx/TiO2 (A), 4% CoOx/TiO2 (B), 5% CoOx/TiO2 (C)] were synthesized by solid-state method followed by calcination. The synthesized catalysts were characterized by various techniques like powder XRD, TEM, EDX, UV-Vis-DRS and XPS analysis. The photocatalytic activity of as-synthesized materials was studied for the reduction of nitroarenes to corresponding amines using hydrazine monohydrate as the reductant. Cobalt (II) oxide is the responsible for the reduction of nitroarenes and thereby cobalt (III) is again reduced back to the original compound by hydrazine hydrate, thus ascertain the catalytic nature of this hydrogenation process. XPS suggests that the presence of Co(II) in CoOx/TiO2.

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IITH Creators:
IITH CreatorsORCiD
G, SatyanarayanaUNSPECIFIED
Ch, Subrahmanyamhttps://orcid.org/0000-0002-2643-3854
Item Type: Article
Subjects: Civil Engineering
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 03 Dec 2018 09:05
Last Modified: 19 Feb 2019 06:21
URI: http://raiith.iith.ac.in/id/eprint/4592
Publisher URL: http://doi.org/10.1039/C8NJ05260C
OA policy: http://www.sherpa.ac.uk/romeo/issn/1144-0546/
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