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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, P P GHOSH, M PALIT, ,
Published in Royal Society of Chemistry
2014
Volume: 4
   
Issue: 94
Pages: 52044 - 52052
Abstract
A reduced graphene oxide/cuprous oxide (RGO/Cu 2 O) 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 CuSO 4 in situ under alkaline conditions. The GO and RGO/Cu 2 O 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/Cu 2 O nanocomposite and the existence of interactions between Cu 2 O and RGO. It is also observed that Cu 2 O nanoparticles with an average size of 5 nm are uniformly dispersed throughout the RGO sheets. The catalytic activity of the RGO/Cu 2 O nanocomposite is excellent for the 'click' reaction and remains the same for six cycles. This journal is © the Partner Organisations 2014.
About the journal
JournalData powered by TypesetRSC Advances
PublisherData powered by TypesetRoyal Society of Chemistry
ISSN2046-2069
Open AccessNo