Open AccessOne-Step Nonaqueous Synthesis of Pure Phase TiO2Nanocrystals from TiCl4in Butanol and Their Photocatalytic Properties
Author(s) -
Tieping Cao,
Yuejun Li,
Changhua Wang,
Changlu Shao,
Yichun Liu
Publication year - 2011
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2011/267415
Subject(s) - materials science , photocatalysis , crystallinity , anatase , rhodamine b , nanorod , butanol , nanomaterials , crystallite , rutile , phase (matter) , nanoparticle , nuclear chemistry , hexamethylenetetramine , chemical engineering , nanotechnology , organic chemistry , catalysis , ethanol , chemistry , composite material , engineering , metallurgy
Pure phase TiO2 nanomaterials were synthesized by an autoclaving treatment of TiCl4 with butanol as a single alcohol source. It was found that the control of molar ratio of TiCl4 to butanol played an important role in determining the TiO2 crystal phase and morphology. A high molar ratio of TiCl4 to butanol favored the formation of anatase nanoparticles, whereas rutile nanorods were selectively obtained at a low molar ratio of TiCl4 to butanol. Evaluation of the photocatalytic activity of the synthesized TiO2 was performed in terms of decomposition of organic dye rhodamine B under ultraviolet irradiation. It turned out that the as-synthesized TiO2 crystallites possessed higher photocatalytic activities toward bleaching rhodamine B than Degussa P25, benefiting from theirhigh surface area, small crystal size as well as high crystallinity
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