Preparation and Photocatalytic Activity of Fluorine and Cerium Codoped Nano-TiO2 Powders
来源期刊：Journal of Rare Earths2007年第S1期
论文作者：李发堂 赵地顺 陈伟娜 商世臣 殷蓉
文章页码：146 - 149
摘 要：Nano-F-/Ce3+/TiO2 particles were prepared by hydrolysis of tetrabutyl titanate in a mixed CF3COOH-Ce（NO3）3-H2O solution. The photocatalytic decomposition of methylene blue in aqueous solution was used to evaluate their photocatalytic activities. The powders were characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM）, energy dispersion X-ray spectrum （EDS）, and Brunauer-Emmett-Teller （BET） surface area analysis. The results showed that F- and Ce3+ were doped into TiO2. The appropriate content of fluorine and cerium were 2.0% and 1.0% （atom fraction） respectively. The codoped nano-F-/Ce3+/TiO2 particles had higher BET specific surface area, smaller crystallite size and higher photocatalytic activity than those of undoped TiO2 particles.
李发堂，赵地顺，陈伟娜，商世臣，殷蓉
摘 要：Nano-F-/Ce3+/TiO2 particles were prepared by hydrolysis of tetrabutyl titanate in a mixed CF3COOH-Ce（NO3）3-H2O solution. The photocatalytic decomposition of methylene blue in aqueous solution was used to evaluate their photocatalytic activities. The powders were characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM）, energy dispersion X-ray spectrum （EDS）, and Brunauer-Emmett-Teller （BET） surface area analysis. The results showed that F- and Ce3+ were doped into TiO2. The appropriate content of fluorine and cerium were 2.0% and 1.0% （atom fraction） respectively. The codoped nano-F-/Ce3+/TiO2 particles had higher BET specific surface area, smaller crystallite size and higher photocatalytic activity than those of undoped TiO2 particles.
关键词：
