期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 19, 期 9, 页码 1141-1145出版社
SCIENCE PRESS
DOI: 10.1016/S1001-0742(07)60186-7
关键词
photocatalysis; copper oxide; tin dioxide; Acid Blue 62 (AB62); simulated sunlight
The novel CuO-SnO2 nanocomposite oxide photocatalysts were prepared by simple co-precipitation method, and characterized by Xray diffraction, transmission electron microscopy, N-2 adsorption-desorption measurement and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activities of CuO-SnO2, evaluated using the photodegradation of Acid Blue 62 as a probe reaction under the irradiation of Xenon light, were also found to be related to the calcination temperature and the molar ratio of Cu to Sn. The maximum photocatalytic activity of the CuO-SnO2 photocatalyst was observed to be calcined at 500 degrees C for 3 h (the molar ratio of Cu to Sn was 1: 1) due to the sample with good crystallization and high surface area. It also showed much higher photocatalytic activity in treatment dye wastewater under simulated sunlight irradiation compared to Degussa P25 TiO2.
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