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Volume 45 All articles Published: 30 June 2022 Article ID 0121
LIFANG CHEN LI DING HONGYE CHENG ZHIWEN QI
A hierarchical Ag/AgBr/Bi$_2$MoO$_6$ heterojunction composite was prepared without the addition of any structure-directing agent via a hydrothermal synthesis combined with subsequent deposition-photoreduction. The obtained samples were characterized by X-ray diffraction, field-emission scanning electron microscopy containing an energy X-ray dispersive spectrometer, X-ray photoelectron spectroscopy, UV–visible diffuse reflectance spectroscopy and photoluminescence spectroscopy. The results demonstrate that the Ag/AgBr/Bi$_2$MoO$_6$ composite exhibited enhanced photocatalytic activity under visible-light irradiation for rhodamine B degradation with a rate constant of 0.180 min$^{–1}$, which was approximately 2.5 times than that of Ag/AgBr and 22.5 times as high as Bi$_2$MoO$_6$. In addition, the superior visible light removing efficiencies of methylene blue and colourless phenol further confirmed the broad-spectrum photocatalytic degradation abilities of the Ag/AgBr/Bi$_2$MoO$_6$. Moreover, based on band structure analysis and active species trapping experiments, the improved photocatalytic performance of the Ag/AgBr/Bi$_2$MoO$_6$ photocatalyst was ascribed to the construction of Z-scheme bridge using Ag nanoparticles, which could increase the separation efficiency of photogenerated electron–hole pairs and keep them with high reduction and oxidation capability.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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