A CuO-loaded SrTiO3 catalyst showed highly photocatalytic activity for H2 evolution. This catalyst was prepared by an impregnation method and characterized by XRD, TEM, BET, XPS, Uv-vis DRS and PL techniques. Under optimum conditions, the best rate of H2 evolution of the CuO-loaded SrTiO3 catalyst is 5811 µmol h−1g−1, whereas it is a mere 34 µmol h−1g−1 for the pure SrTiO3. High efficiency, low cost and good stability are some of the merits that underline the promising potential of CuO-loaded SrTiO3 in the photocatalytic hydrogen.

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Effect of CuO Loading on the Photocatalytic Activity of SrTiO3 for Hydrogen Evolution

by 

Xuan Truong Mai

 1,

Duc Nguyen Bui

 1,* ,

Van Khang Pham

 1,

Thi Hien Lan Nguyen

 1,

Thi To Loan Nguyen

 1,

Hung Dung Chau

 2 and

Thi Kim Ngan Tran

 2,*

1

Faculty of Chemistry, Thai Nguyen University of Education, No 20 Luong Ngoc Quyen Street, Thai Nguyen City 24000, Vietnam

2

Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam

*

Authors to whom correspondence should be addressed.

Academic Editors: Duncan H. Gregory, Wolfgang Linert, Richard Dronskowski, Vladimir Arion, Claudio Pettinari and Torben R. Jensen

Inorganics 2022, 10(9), 130; https://doi.org/10.3390/inorganics10090130

Received: 19 July 2022 / Revised: 22 August 2022 / Accepted: 29 August 2022 / Published: 31 August 2022

(This article belongs to the Special Issue Inorganics: 10th Anniversary)

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Abstract

A CuO-loaded SrTiO3 catalyst showed highly photocatalytic activity for H2 evolution. This catalyst was prepared by an impregnation method and characterized by XRD, TEM, BET, XPS, Uv-vis DRS and PL techniques. Under optimum conditions, the best rate of H2 evolution of the CuO-loaded SrTiO3 catalyst is 5811 µmol h−1g−1, whereas it is a mere 34 µmol h−1g−1 for the pure SrTiO3. High efficiency, low cost and good stability are some of the merits that underline the promising potential of CuO-loaded SrTiO3 in the photocatalytic hydrogen.