TY - JOUR A2 - Luo, Wenjun AU - Liu, Jinfeng AU - Li, Haiyan AU - Li, Qiuye AU - Wang, Xiaodong AU - Zhang, Min AU - Yang, Jianjun PY - 2014 DA - 2014/12/01 TI - Preparation of Cerium Modified Titanium Dioxide Nanoparticles and Investigation of Their Visible Light Photocatalytic Performance SP - 695679 VL - 2014 AB - Mesoporous Ce O x /TiO₂nanoparticles have been successfully synthesized using titanate nanotubes as precursor through the hydrothermal-calcination method. The as-prepared materials were characterized by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), UV-vis diffuse reflectance spectra and nitrogen adsorption-desorption isotherm analysis. All the obtained Ce O x /TiO₂materials exhibit anatase phase. Ce element existed in two valance states of Ce³⁺and Ce⁴⁺. Introduction of Ce species can effectively extend the spectral response from UV to visible light region. N₂adsorption-desorption analysis revealed that all the samples belong to mesoporous structure and have large BET surface area compared with P25. The Ce O x /TiO₂nanoparticles showed excellent photocatalytic activity in the degradation of MB under visible light irradiation. SN - 1110-662X UR - https://doi.org/10.1155/2014/695679 DO - 10.1155/2014/695679 JF - International Journal of Photoenergy PB - Hindawi Publishing Corporation KW - ER -