Preparation and photoactivity of samarium loaded anatase, brookite and rutile catalysts
作者： M. Bellardita , A. Di Paola , L. Palmisano , F. Parrino , G. Buscarino
DOI: 10.1016/J.APCATB.2011.03.016
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摘要: Abstract Pure and samarium loaded anatase, brookite rutile nanopowders were synthesized by thermohydrolysis of TiCl 4 . The samples characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), specific surface area (SSA) determination, UV–vis diffuse reflectance spectroscopy (DRS), atomic force (AFM), contact angle (CA) measurements photoluminescence (PL) spectroscopy. photocatalytic activity pure Sm-loaded TiO 2 polymorphs was investigated employing the photodegradation 4-nitrophenol as probe reaction in a liquid-solid system. Loading with Sm resulted an improvement photoreactivity three polymorphs. beneficial effect explained increased separation efficiency photogenerated electron–hole pairs. Thin films obtained dip coating from water dispersions bare samples. addition caused reduction films. A nearly superhydrophilic property exhibited film.
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K. T. Ranjit, H. Cohen, I. Willner, S. Bossmann, A. M. Braun, Lanthanide oxide-doped titanium dioxide : Effective photocatalysts for the degradation of organic pollutants Journal of Materials Science. ,vol. 34, pp. 5273- 5280 ,(1999) , 10.1023/A:1004780401030
Jack Barrett, Inorganic chemistry in aqueous solution ,(2003)
Photocatalysis for Environment Problems, Mario Schiavello, Photocatalysis and environment : trends and applications Kluwer Academic Publishers. ,(1988)
Ezio Pelizzetti, Nick Serpone, Photocatalysis: Fundamentals and Applications ,(1989)
Gil Jae Park, Tomokatsu Hayakawa, Masayuki Nogami, Formation of Sm2+ ions in femtosecond laser excited Al2O3 – SiO2 glasses Journal of Physics: Condensed Matter. ,vol. 15, pp. 1259- 1265 ,(2003) , 10.1088/0953-8984/15/8/310
A. Conde-Gallardo, M. Garcı́a-Rocha, I. Hernández-Calderón, R. Palomino-Merino, Photoluminescence properties of the Eu3+ activator ion in the TiO2 host matrix Applied Physics Letters. ,vol. 78, pp. 3436- 3438 ,(2001) , 10.1063/1.1372338
Jiaguo Yu, Xiujian Zhao, Effect of surface microstructure on the super-hydrophilic property of the sol-gel derived porous TiO2 thin films Journal of Materials Science Letters. ,vol. 20, pp. 671- 673 ,(2001) , 10.1023/A:1010994022745
Wei Zhao, Wanhong Ma, Chuncheng Chen, Jincai Zhao, Zhigang Shuai, Efficient Degradation of Toxic Organic Pollutants with Ni2O3/TiO2-xBx under Visible Irradiation Journal of the American Chemical Society. ,vol. 126, pp. 4782- 4783 ,(2004) , 10.1021/JA0396753
Yeong Il Kim, Stephen J. Atherton, Elaine S. Brigham, Thomas E. Mallouk, Sensitized layered metal oxide semiconductor particles for photochemical hydrogen evolution from nonsacrificial electron donors The Journal of Physical Chemistry. ,vol. 97, pp. 11802- 11810 ,(1993) , 10.1021/J100147A038
Hiroshi Kominami, Yoshinori Ishii, Masaaki Kohno, Shunsuke Konishi, Yoshiya Kera, Bunsho Ohtani, Nanocrystalline Brookite-Type Titanium(IV) Oxide Photocatalysts Prepared by a Solvothermal Method: Correlation Between Their Physical Properties and Photocatalytic Activities Catalysis Letters. ,vol. 91, pp. 41- 47 ,(2003) , 10.1023/B:CATL.0000006316.45620.30