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Synthesis of Nanocrystalline TiO 2 Particles by Hydrolysis of Titanyl Organic Compounds at Low Temperature
Author(s) -
Chen Xiaoquan,
Gu Guobang,
Liu Huanbin,
Cao Zhennian
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.01035.x
Subject(s) - anatase , nanocrystalline material , rutile , thermogravimetric analysis , calcination , materials science , transmission electron microscopy , particle size , mineralogy , fourier transform infrared spectroscopy , inorganic chemistry , specific surface area , hydrolysis , analytical chemistry (journal) , chemical engineering , chemistry , nanotechnology , organic chemistry , photocatalysis , catalysis , engineering
Fourier transform infrared analysis, nuclear magnetic resonance, and thermogravimetric analysis show that most of the solid product prepared from the reaction of Ti(OC 4 H 9 ) 4 and excess (CH 3 CO) 2 O is a mixture of titanyl organic compounds. Nanocrystalline TiO 2 particles, which include anatase TiO 2 , rutile TiO 2 , and a mixture of anatase and rutile, can be obtained from hydrolysis of the titanyl organic compounds under normal pressure at 60°C. The particle size, shape, and formation process of the crystals have been studied using X‐ray diffraction and transmission electron microscopy. The specific‐surface‐area data for a rutile TiO 2 sample and the powders obtained after calcination at different temperatures have been measured by the Brunauer–Emmett–Teller method.