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Volume 44 All articles Published: 30 April 2021 Article ID 0123
Synthesis and visible-light photocatalytic activity of brookite/BiOBr
ZHITENG WANG NING LIU HUIDONG XIE JIE LI YAJUAN ZHAO NA WANG
Brookite TiO$_2$ was synthesized and BiOBr was supported on the surface of brookite TiO$_2$ by a hydrothermal method. X-ray diffraction and X-ray photoelectron spectroscopy analyses of the composites confirmed the formation of brookite TiO$_2$/BiOBr. Transmission electron microscopy results confirmed the as-prepared composites were nano-sized.The optimum loading amount of BiOBr was 30%. The photocatalytic results show that the degradation efficiency of rhodamine B by titanite TiO$_2$/BiOBr (30%) under visible-light irradiation for 2 h is close to 100%. ${\bullet}$O$_2$$^–$ and h$^+$ are themain active species during the photocatalytic process. The improvement of photocatalytic activity might be because theformation of p–n hetero-junction enhanced the separation efficiency of photogenerated electron–hole pairs. The photocurrentdensity of the brookite/BiOBr (30%) was about 2 times higher than that of pure brookite.
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Bulletin of Materials Science
Volume 46, 2023
All articles
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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
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