FABRICATION OF BIPHASE BiVO4 PARTICLES WITH ENHANCED PHOTOCATALYTIC PERFORMANCE VIA A SURFACTANT-FREE HYDROTHERMAL ROUTE
Hongzhi Qian,
Min Lai,
Xiaogu Huang,
Wei Wang,
Chaoqi Xu,
Haibo Yong,
Yan Wen and
Yingjie Zhou
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Hongzhi Qian: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Min Lai: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China†Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Nanjing, Jiangsu 210044, P. R. China‡Jiangsu Research Center for Ocean Survey Technology, Nanjing, Jiangsu 210044, P. R. China
Xiaogu Huang: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Wei Wang: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Chaoqi Xu: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Haibo Yong: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Yan Wen: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Yingjie Zhou: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, P. R. China
Surface Review and Letters (SRL), 2016, vol. 23, issue 05, 1-5
Abstract:
Biphase bismuth vanadate (BiVO4) particles have been synthesized using a surfactant-free hydrothermal strategy. Biphase BiVO4 were formed at pH=3, 5 and 7 with a bandgap between 2.28eV and 2.86eV, which are those of monoclinic and tetragonal phases, respectively. Photocatalytic tests on the degradation of rhodamine B (RhB) under visible-light irradiation showed that biphase BiVO4 with both monoclinic and tetragonal structures synthesized at pH=3 achieved enhanced photocatalytic performance in comparison with pure monoclinic and tetragonal phases, which was attributed to the heterostructures leading to low recombination rate of electron–hole pairs.
Keywords: Biphase; BiVO4; heterostructures; photocatalytic performance (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500323
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