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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 7
BKCSDE 33(7)
July 20, 2012 
 
Title
 A Convenient Method to Prepare Ag Deposited N-TiO2 Composite Nanoparticles via NH3 Plasma Treatment
Author
 Shaozheng Hu*, Fayun Li, Zhiping Fan
Keywords
 NH3 plasma, Ag, TiO2, Photocatalysis, Visible light
Abstract
 Ag deposited N-TiO2 composite nanoparticles were prepared via NH3 plasma treatment. X-ray diffraction, UVvis spectroscopy, photoluminescence, and X-ray photoelectron spectroscopy were used to characterize the prepared TiO2 samples. The plasma treatment did not change the phase composition and particle sizes of TiO2 samples, but extended its absorption edges to the visible light region. The photocatalytic activities were tested in the degradation of an aqueous solution of a reactive dyestuff, methylene blue, under visible light. The photocatalytic activities of Ag deposited N-TiO2 composite nanoparticles were much higher than Ag-TiO2, NTiO2, and P25. A possible mechanism for the photocatalysis was proposed.
Page
 2309 - 2314
Full Text
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