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Reduced graphene oxide wrapped Cu2
O supported on C3
: An efficient visible light responsive semiconductor photocatalyst
7.M. D. H. A. Fuerte, A. J. Maira, A. Martinez-Arias, M. Fernadez-Garcia, J. C. Conesa, and J. Soria, Chem. Commun. 24, 2718 (2001).
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2O spheres were prepared and encapsulated with reduced graphene oxide (rGO). The Cu
2O–rGO–C3N4 composite covered the whole solar spectrum with significant absorption intensity. rGO wrapped Cu
2O loading caused a red shift in the absorption with respect to considering the absorption of bare C3N4. The photoluminescence study confirms that rGO exploited as an electron transport layer at the interface of Cu
2O and C3N4
heterojunction. Utmost, ∼2 fold synergistic effect was achieved with Cu
2O–rGO–C3N4 for the photocatalytic reduction of 4-nitrophenol to 4-aminophenol in comparison with Cu
2O–rGO and C3N4. The Cu
2O–rGO–C3N4 photocatalyst was reused for four times without loss in its activity.
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