Kumar, Veeresh and Bahadur, Nupur and Sachdev, Divya and Gupta, Shweta and Reddy, G. B. and Pasricha, Renu (2014) Restructural confirmation and photocatalytic applications of graphene oxide-gold composites synthesized by Langmuir-Blodgett method. Carbon, 80. pp. 290-304. ISSN 0008-6223

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We present a first report on the use of Langmuir Blodgett (LB) technique for the synthesis of edge decorated graphene oxide gold (GO-Au) nanostructures by simple manipulation of electrostatic interactions. The GO-Au nanostructures when characterized using spectroscopy, surface, chemical and micro structural techniques, displayed unique physical and structural properties. The results re-established the theoretical corroboration that the carboxyl groups are primarily located at the edges of the 2D sheets of GO. The exploitation of air-water interface platform makes this process novel and fundamentally different from existing protocols for synthesis of GO-metal composites. These GO-Au hybrid materials favoured visible-light driven plasmonic photo catalysis together with enhanced charge separation and transportation properties, resulting in the augmentation of photocatalytic activity and conductivity with high transmittance. A plausible reaction mechanism for the degradation of pollutant dye and the role of gold nanoparticles (NPs) on GO has been established.

Item Type: Article
Additional Information: Copyright for this article belongs to M/S Elsevier.
Subjects: Chemistry
Materials Science
Depositing User: Dr. Rajpal Walke
Date Deposited: 04 Nov 2015 07:27
Last Modified: 04 Nov 2015 07:27
URI: http://npl.csircentral.net/id/eprint/1498

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