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Molecules 2015, 20(10), 19189-19202; doi:10.3390/molecules201019189

Enhanced Visible Light Photocatalytic Activity of Br-Doped Bismuth Oxide Formate Nanosheets

1
Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
2
Key Laboratory of Green Catalysis of Sichuan Institutes of High Education, Sichuan University of Science and Technology, Zigong 643000, China
3
National Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Jimmy C. Yu
Received: 7 August 2015 / Revised: 3 October 2015 / Accepted: 14 October 2015 / Published: 21 October 2015
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Abstract

A facile method was developed to enhance the visible light photocatalytic activity of bismuth oxide formate (BiOCOOH) nanosheets via Br-doping. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, the Brunauer–Emmett–Teller surface area, UV-vis diffuse reflectance spectroscopy, photoluminescence spectra, and N2 adsorption-desorption isotherms measurement. The Br ions replaced the COOH ions in the layers of BiOCOOH, result in a decreased layer distance. The photocatalytic activity of the as-prepared materials was evaluated by removal of NO in qir at ppb level. The results showed that the Br-doped BiOCOOH nanosheets showed enhanced visible light photocatalytic activtiy with a NO removal of 37.8%. The enhanced activity can be ascribed to the increased visible light absorption and the promoted charge separation. View Full-Text
Keywords: Br-doping; BiOCOOH; NO removal; visible-light photocatalysis; charge separation Br-doping; BiOCOOH; NO removal; visible-light photocatalysis; charge separation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Feng, X.; Cui, W.; Zhong, J.; Liu, X.; Dong, F.; Zhang, Y. Enhanced Visible Light Photocatalytic Activity of Br-Doped Bismuth Oxide Formate Nanosheets. Molecules 2015, 20, 19189-19202.

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