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Issue 94, 2014
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In situ synthesis of a reduced graphene oxide/cuprous oxide nanocomposite: a reusable catalyst

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Abstract

A reduced graphene oxide/cuprous oxide (RGO/Cu2O) nanocomposite has been successfully synthesized applying a simple in situ reduction method using an aqueous solution of lactulose which is used simultaneously as a reducing and stabilizing agent. Lactulose, a disaccharide, has the ability to reduce both GO and CuSO4 in situ under alkaline conditions. The GO and RGO/Cu2O nanocomposites are characterized using transmission electron microscopy, energy dispersive X-ray spectroscopy, field emission scanning electron spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy and UV-vis absorption spectroscopy. The surface charge as well as stability is established by analyzing the zeta potential value. The results confirm the synthesis of the RGO/Cu2O nanocomposite and the existence of interactions between Cu2O and RGO. It is also observed that Cu2O nanoparticles with an average size of 5 nm are uniformly dispersed throughout the RGO sheets. The catalytic activity of the RGO/Cu2O nanocomposite is excellent for the ‘click’ reaction and remains the same for six cycles.

Graphical abstract: In situ synthesis of a reduced graphene oxide/cuprous oxide nanocomposite: a reusable catalyst

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Publication details

The article was received on 05 Aug 2014, accepted on 30 Sep 2014 and first published on 03 Oct 2014


Article type: Paper
DOI: 10.1039/C4RA08127G
Citation: RSC Adv., 2014,4, 52044-52052
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    In situ synthesis of a reduced graphene oxide/cuprous oxide nanocomposite: a reusable catalyst

    I. Roy, A. Bhattacharyya, G. Sarkar, N. R. Saha, D. Rana, P. P. Ghosh, M. Palit, A. R. Das and D. Chattopadhyay, RSC Adv., 2014, 4, 52044
    DOI: 10.1039/C4RA08127G

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