Tuesday , 18 May 2021

Catalytic Reductions of Organic Dyes Eosin Y and Methylene Blue Using Graphene Oxide Supported With Pd Nanoparticles as Catalyst

K. Sivaranjan, J. Santhanalakshmi*
Department of Physical chemistry, University of Madras, Guindy campus, Chennai-600025, India

A B S T R A C T
Graphene oxide supported Pd nanoparticles was synthesized by adopting simple and an ecofriendly approach. The obtained GO-supported Pd nanoparticles was characterized by Raman spectroscopy, scanning electron microscopy with energy dispersive x-ray analysis (SEM-EDAX) and transmission electron microscopy (TEM) analyses. The synthesized GO- supported Pd nanoparticles were used as catalysts for reductive degradation of organic dyes in an aqueous medium. The reduction reaction was followed by pseudo first order experimental conditions. The reductive degradation product was monitored by UV-Visible spectroscopy. The rate constant values were also calculated. Eosin y dye was found to degrade in a better then the Methylene blue dye.
Keywords: Graphene oxide, Pd nanoparticles, catalyst, reduction, Eosin y, Methylene blue

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