Citation: ZHUO Na, LI Li, GAO Yu, LU Lu, HUANG Xian-Dan, WANG Li-Li. CTAB-Assisted Synthesis of Nano-Composite Ag/ZnO-TiO2 and Its UV Photocatalytic Activity[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(5): 991-998. doi: 10.3969/j.issn.1001-4861.2013.00.156
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The nano-composites Ag/ZnO-TiO2 under cetyltrimethylammonium bromide(CTAB) were prepared with molar ratio of 0.1:2:1 about Ag:Zn:Ti by the sol-gel method combined with temperature-programmed treatment. The phase composition, structures and morphologies of the nano-composite Ag/ZnO-TiO2 by post-processing methods of calcination at different temperature(500, 600, 700 ℃) and time(5 h, 7 h) were well-characterized by X-ray diffraction(XRD), and UV-visible diffuse reflectance spectrometer(UV-Vis/DRS), and X-ray photoelectron spectroscopy(XPS), and Transmission electron microscopy(TEM), and Scanning electron microscopy combined with X-ray energy dispersive spectroscopy(SEM-EDS) and N2 adsorption-desorption measurement. Results showed that a series of composites had not only the ZnO wurtzite and TiO2 anatase structures, meanwhile, part Zn2TiO4 were generated and silver species existing in the nano-composite Ag/ZnO-TiO2 was metallic Ag0. By the method changed calcination temperature and time, different nano-composites Ag/ZnO-TiO2(CTAB) showed nanowires and nano-ball morphology, moreover, which were uniformly distribution. By the photocatalytic degradation of RB, under UV light irradiation, the results showed that the activities of sample calcined at different time and temperature were obvious distinction.
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