Reduced graphene oxide wrapped Cu2O supported on C3N4: an efficient visible light responsive semiconductor photocatalyst.

Ganesh Babu, S.; Vinoth, R.; Surya Narayana, P.; Bahnemann, Detlef; Neppolian, B.

Abstract

Herein, Cu2O spheres were prepared and encapsulated with reduced graphene oxide (rGO). The Cu2O–rGO–C3N4 composite covered the whole solar spectrum with significant absorption intensity. rGO-wrapped Cu2O loading caused a red shift in the absorption with respect to considering the absorption of bare C3N4. The photoluminescence study confirms that rGO is exploited as an electron transport layer at the interface of Cu2O and C3N4 heterojunction. At most ~2 fold synergistic effect was achieved with Cu2O–rGO–C3N4 for the photocatalytic reduction of 4-nitrophenol to 4-aminophenol, in comparison with Cu2O–rGO and C3N4. The Cu2O–rGO–C3N4 photocatalyst was reused for four times without loss in its activity.

Citation

GANESH BABU, S., VINOTH, R., SURYA NARAYANA, P., BAHNEMANN, D. and NEPPOLIAN, B. 2015. Reduced graphene oxide wrapped Cu2O supported on C3N4: an efficient visible light responsive semiconductor photocatalyst. APL materials [online], 3(10), article number 104415. Available from: https://doi.org/10.1063/1.4928286

• Journal Article Type: Article
• Acceptance Date: Jul 26, 2015
• Online Publication Date: Aug 25, 2015
• Publication Date: Oct 31, 2015
• Deposit Date: Oct 24, 2023
• Publicly Available Date: Jan 15, 2024
• Journal: APL materials
• Electronic ISSN: 2166-532X
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 10
• Article Number: 104415
• DOI: https://doi.org/10.1063/1.4928286
• Keywords: Photocatalysis; Photocatalysts; Electron transport
• Public URL: https://rgu-repository.worktribe.com/output/2120597
• Additional Information: The supplementary material published alongside this article has been included at the end of the file accompanying this record.