Preparation of Nanosized Rutile TiO2 from an Aqueous Peroxotitanate Solution

A new facile method for direct preparation of well‐crystallized rutile TiO2 nanoparticles without any ionic impurities was reported. The nanosized TiO2 was prepared by aging a peroxotitanate solution at 100°C for 0–12 h, formed by reaction of H2O2 and titanium tetraisopropoxide (TTIP). The method in...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2006-03, Vol.89 (3), p.1147-1149
Main Authors: Seok, Sang Il, Ahn, Bok Yeop, Pramanik, Nimai Chand, Kim, Hoon, Hong, Suk-In
Format: Article
Language:English
Subjects:
Aqueous solutions
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanocrystals
Nanoparticles
Nanopowders
Nanoscale materials and structures: fabrication and characterization
Physics
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Summary:A new facile method for direct preparation of well‐crystallized rutile TiO2 nanoparticles without any ionic impurities was reported. The nanosized TiO2 was prepared by aging a peroxotitanate solution at 100°C for 0–12 h, formed by reaction of H2O2 and titanium tetraisopropoxide (TTIP). The method involves hydrolysis of TTIP and simultaneous digestion of hydrolyzed precipitates, and hydrothermal treatment into crystalline phases. It was found that the TTIP/H2O2 molar ratio in the preparation of peroxotitanate as a precursor for TiO2 was crucial in the formation of a rutile phase. Transmission electron microscope observation for sols showed rod‐like shapes with average particle sizes of around 100 nm in the elongated direction.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2005.00850.x