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J Colloid Interface Sci. 2007 May 15;309(2):478-84. Epub 2007 Feb 9.

One-pot synthesis, photoluminescence, and photocatalysis of Ag/ZnO composites.

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Department of Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China.


One-pot synthesis of Ag/ZnO composites is described by a simple hydrothermal approach. In the reaction process, hexamethylenetetramine (HMT) can convert into ammonia and formaldehyde, which are used as a precipitant for the fabrication of ZnO and a reducing agent for the loading of metal Ag, respectively. The UV emission of ZnO is obviously enhanced by the deposition of silver islands on its surface. The photocatalytic characterization reveals that the composites behave high photocatalytic activity for a solution of rhodamine B. The influence of Ag+ ions on the morphology of ZnO is discussed. The composites are characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL).

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