Abstract
The factors that influence the photo-stability of Ag@AgBr plasmonic photocatalyst, such as light resource, electron/hole quencher, dye sensitizer, and atmosphere environment, were investigated in detail. It was revealed that Ag@AgBr can remain stable under weak light sources while it will become unstable under strong light sources. Electron quenchers are favorable to improving the stability of Ag@AgBr while hole quenchers do the opposite. Acting as a sensitizer, acid orange 7 dye is detrimental to the stability of Ag@AgBr. As for the atmospheric environment, air and oxygen-rich atmospheres are more favorable for keeping the stability of Ag@AgBr than vacuum atmosphere.
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Acknowledgments
This work has been supported by the National Natural Science Foundation of China (21277046, 21047002, 21173077), the Shanghai Committee of Science and Technology (13NM1401000), the Shanghai Natural Science Foundation (10ZR1407400), the National Basic Research Program of China (973 Program, 2010CB732306), and the Project of International Cooperation of the Ministry of Science and Technology of China (2011DFA50530). Open Project from Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control of Nanjing University of Information Science and Technology, Jiangsu Province Innovation Platform for Superiority Subject of Environmental Science and Engineering (KHK1211).
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Qingsong Tao and Fan Yang have contributed equally to this work and should be considered as co-first authors.
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Tao, Q., Yang, F., Teng, F. et al. Study of the factors influencing the photo-stability of Ag@AgBr plasmonic photocatalyst. Res Chem Intermed 41, 7285–7297 (2015). https://doi.org/10.1007/s11164-014-1812-5
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DOI: https://doi.org/10.1007/s11164-014-1812-5