Visible Light Driven Heterojunction Photocatalyst of CuO–Cu2O Thin Films for Photocatalytic Degradation of Organic Pollutants

Dasineh Khiavi, Negar; Katal, Reza; Kholghi Eshkalak, Saeideh; Masudy-Panah, Saeid; Ramakrishna, Seeram; Jiangyong, Hu

doi:10.3390/nano9071011

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Visible Light Driven Heterojunction Photocatalyst of CuO–Cu₂O Thin Films for Photocatalytic Degradation of Organic Pollutants

Negar Dasineh Khiavi

^1,†,

Reza Katal

^2,†

Saeideh Kholghi Eshkalak

, Saeid Masudy-Panah⁴

Seeram Ramakrishna

^3,*

and

Hu Jiangyong

^2,*

Faculty of Biosciences & Medical Engineering, University Technology Malaysia, Johor 81310, Malaysia

Department of Civil & Environmental Engineering, National University of Singapore, Singapore 119260, Singapore

Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117575, Singapore

⁴

Electrical and Computer Engineering, National University of Singapore, Singapore 119260, Singapore

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Nanomaterials 2019, 9(7), 1011; https://doi.org/10.3390/nano9071011

Received: 22 June 2019 / Revised: 12 July 2019 / Accepted: 12 July 2019 / Published: 13 July 2019

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Abstract

A high recombination rate and low charge collection are the main limiting factors of copper oxides (cupric and cuprous oxide) for the photocatalytic degradation of organic pollutants. In this paper, a high performance copper oxide photocatalyst was developed by integrating cupric oxide (CuO) and cuprous oxide (Cu₂O) thin films, which showed superior performance for the photocatalytic degradation of methylene blue (MB) compared to the control CuO and Cu₂O photocatalyst. Our results show that a heterojunction photocatalyst of CuO–Cu₂O thin films could significantly increase the charge collection, reduce the recombination rate, and improve the photocatalytic activity. View Full-Text

Keywords: photocatalytic degradation; CuO; Cu₂O; heterojunction

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Dasineh Khiavi, N.; Katal, R.; Kholghi Eshkalak, S.; Masudy-Panah, S.; Ramakrishna, S.; Jiangyong, H. Visible Light Driven Heterojunction Photocatalyst of CuO–Cu₂O Thin Films for Photocatalytic Degradation of Organic Pollutants. Nanomaterials 2019, 9, 1011. https://doi.org/10.3390/nano9071011

AMA Style

Dasineh Khiavi N, Katal R, Kholghi Eshkalak S, Masudy-Panah S, Ramakrishna S, Jiangyong H. Visible Light Driven Heterojunction Photocatalyst of CuO–Cu₂O Thin Films for Photocatalytic Degradation of Organic Pollutants. Nanomaterials. 2019; 9(7):1011. https://doi.org/10.3390/nano9071011

Chicago/Turabian Style

Dasineh Khiavi, Negar, Reza Katal, Saeideh Kholghi Eshkalak, Saeid Masudy-Panah, Seeram Ramakrishna, and Hu Jiangyong. 2019. "Visible Light Driven Heterojunction Photocatalyst of CuO–Cu₂O Thin Films for Photocatalytic Degradation of Organic Pollutants" Nanomaterials 9, no. 7: 1011. https://doi.org/10.3390/nano9071011

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Visible Light Driven Heterojunction Photocatalyst of CuO–Cu₂O Thin Films for Photocatalytic Degradation of Organic Pollutants

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