The construction of a highly efficient p-n heterojunction Bi2O3/BiVO4 for hydrogen evolution through solar water splitting |
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| Affiliation: | 1. Department of Physics, University of Gujrat, Gujrat, Pakistan;2. Department of Physics, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan;3. Department of Chemical Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan;4. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;5. Laboratoire de Physique Appliquée, Groupe des Matériaux Luminescents, Université de Sfax, Faculté des Sciences de Sfax, BP 1171, 3000 Sfax, Tunisia;6. Department of Mechanical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia;7. Physics Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia |
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| Abstract: | In this manuscript, a novel p-n heterojunction Bi2O3/BiVO4 samples were prepared using the facile hydrothermal method, for the efficient production of hydrogen energy. The prepared samples were characterized using XRD, BET, SEM, EDX, UV–Vis absorption and PL emission spectroscopy to study the crystallographic structure, surface area, morphology, elemental composition, and optical properties. The as-prepared 3% Bi2O3/BiVO4 exhibited outstanding hydrogen evolution rate, through photocatalytic water splitting, of 171.13 μmol h?1 g?1, which was 16 times higher than that of pure sample. The improved photocatalytic activity could be attributed to unique crystal structure, morphology, high surface area, and extended region of visible light. This work may pave an operative way for the photocatalytic hydrogen evolution utilizing solar light. |
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| Keywords: | Photocatalysis Nanostructures Water splitting Hydrogen production |
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