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Ag@AgCl: A Highly Efficient and Stable Photocatalyst Active under Visible Light


  • This work was financially supported by the National Basic Research Program of China (973 Program, Grant 2007CB613302) and the National Natural Science Foundation of China under Grants 50721002 and 10774091. M.-H.W. is thankful for support by the Office of Basic Energy Sciences, Division of Materials Sciences, U.S. Department of Energy, under Grant DE-FG02-86ER45259.


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Plasmonic photocatalyst Ag@AgCl, in which Ag nanoparticles are deposited on the surfaces of AgCl particles (SEM image depicted), was prepared by treating Ag2MoO4 with HCl to form AgCl powder and then reducing some Ag+ ions in the surface region of the AgCl particles to Ag0. This photocatalyst is highly efficient, for example in the degradation of organic dyes, and stable under visible light.