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Synthesis of TiO 2 Nanoparticles via a Ti(IV) Complex with Stearic Acid and the Photocatalytic Activity for Organic Oxidation
Author(s) -
Xu YiMing,
Yu XiaoHan,
Liu HniJun
Publication year - 2002
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20020200103
Subject(s) - stearic acid , chemistry , photocatalysis , adsorption , substrate (aquarium) , decomposition , organic dye , titanium , thermal decomposition , inorganic chemistry , organic compound , nanoparticle , chemical engineering , nuclear chemistry , organic chemistry , catalysis , oceanography , engineering , geology
The nano‐sized particles of TiO 2 were prepared by thermal decomposition of titanium(IV) tetrabutanoxide complex with stearic acid at 450 °C in the air. It was observed that the amount of stearic acid, used initially for the complex synthesis in 2‐propano) at 25 °C, had great influence on the physical properties of the prepared TiO 2 including crystal structure, the particle size, surface area and the adsorption capacity for organic substrate of a textile dye X3B in water, and thereafter the photocatalytic activity for the dye oxidation. Some samples displayed lower adsorption capacity for the organic substrate in water than a TiO 2 of Degussa p25, but higher photocatalytic activity for the organic oxidation. Possible reason for the observed difference was discussed in the text.