Arachis hypogaea derived activated carbon/Pt catalyst: reduction of organic dyes

Vandarkuzhali, S. Anbu Anjugam, Karthikeyan, S., Viswanathan, B. and Pachamuthu, M.p. (2018). Arachis hypogaea derived activated carbon/Pt catalyst: reduction of organic dyes. Surfaces and Interfaces, 13 , pp. 101-111.

Abstract

Activated carbon from agro waste groundnut (Arachis hypogaea) shell was prepared by chemical activation and used as support for dispersion of 5% platinum nanoparticles. The Pt nanoparticles were obtained by the reduction in hydrogen gas medium. The synthesized groundnut activated carbon/platinum catalyst was characterized by various techniques such as X-ray powder diffraction, electron microscopies and X-ray photoelectron spectroscopy. The catalytic behaviour of the synthesized catalyst was investigated by exploring it as catalyst for the reduction of various classes of dyes; namely, triphenylmethane dyes such as Malachite green, phenol red and bromophenol blue, xanthene dyes: rose bengal, rhodamine 6G, rhodamine B, thiazine dye: methyelene blue, azo dye: congo red and 4-nitrophenol by sodium borohydride in aqueous medium. Under suitable reaction conditions, for all tested dyes, cationic dyes were reduced at a faster rate than anionic dyes. The rate of reduction on the structure of dye and nature of catalyst was employed.

Publication DOI: https://doi.org/10.1016/j.surfin.2018.07.005
Divisions: Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: © 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
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Related URLs: https://linking ... 468023018302487 (Publisher URL)
Published Online Date: 2018-12
Published Date: 2018-12
Authors: Vandarkuzhali, S. Anbu Anjugam
Karthikeyan, S.
Viswanathan, B.
Pachamuthu, M.p.

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