Photocatalytic degradation of Rhodamine B under visible light with Nd-doped titanium dioxide films
来源期刊：JOURNAL OF RARE EARTHS2009年第5期
论文作者：LIU Huiling WU Xiaohong SU Peibo QI Lili
Key words：titanium dioxide; visible light; doping ion; photocatalysis; Rhodamine B; rare earths;
Abstract: Microporous titanium dioxide films were prepared by the sol-gel methods on glass substrates, using tetrabutyl titanate as source material. In order to absorb the visible light and increase the photocatalytic activities, different concentrations of neodymium ions (Nd/Ti molar ratio was 0.5%, 0.7%, 0.9%, and 1.1% respectively) were added into the sol. X-ray diffraction (XRD), X-ray photoelectron spectros-copy (XPS), and atom force microscopy (AFM) were applied to characterize the modified films. A kind of typical textile industry pollutant (Rhodamine B) was used to evaluate the photocatalytic activities of the films under visible light. The results showed that the activities of the films were improved by doping Nd ions into the sol.
LIU Huiling1，WU Xiaohong2，SU Peibo3，QI Lili1
(1.School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150001, China;
2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, China;
3.Department of Applied Chemistry,Harbin Institute of Technology, Harbin 150001, China)
Abstract:Microporous titanium dioxide films were prepared by the sol-gel methods on glass substrates, using tetrabutyl titanate as source material. In order to absorb the visible light and increase the photocatalytic activities, different concentrations of neodymium ions (Nd/Ti molar ratio was 0.5%, 0.7%, 0.9%, and 1.1% respectively) were added into the sol. X-ray diffraction (XRD), X-ray photoelectron spectros-copy (XPS), and atom force microscopy (AFM) were applied to characterize the modified films. A kind of typical textile industry pollutant (Rhodamine B) was used to evaluate the photocatalytic activities of the films under visible light. The results showed that the activities of the films were improved by doping Nd ions into the sol.
Key words:titanium dioxide; visible light; doping ion; photocatalysis; Rhodamine B; rare earths;
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