Preparation of Nano-Sized TiO2 Particles by Self-Propagating-High-Temperature Synthesis

C.M. Wang; S.L. Chung

doi:10.4028/www.scientific.net/AST.45.285

Paper Titles

Formation Mechanisms of Sol-Gel Derived Cordierite
p.266

Synthesis of Cr-Doped Sphene Ceramic Pigments by Spray Drying
p.272

Ceramic Pigments with Perovskite Structure
p.276

Thermal Plasma Processing of Functional Ceramic Materials
p.281

Preparation of Nano-Sized TiO₂ Particles by Self-Propagating-High-Temperature Synthesis
p.285

Laser Synthesis of Oxide Nanopowders
p.291

SiC Powder for Casting from Aqueous Suspension
p.297

Microstructural Transformations of Al₂O₃-TiO₂ and Al₂O₃-ZrO₂ Powders Induced by High-Energy Ball-Milling
p.303

Mechanosynthesis of Nanocrystalline MgB₂ Ceramic Powders in Hydrogen Alloying Mills via Amorphous Hydride Intermediate
p.309

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Preparation of Nano-Sized TiO2 Particles by...

Preparation of Nano-Sized TiO₂ Particles by Self-Propagating-High-Temperature Synthesis

Abstract:

This investigation was aimed at preparing nanocrystalline TiO2 powder by self-propagating-high-temperature synthesis. Titanium (IV) n-butoxide was hydrolyzed to obtain titanl hydroxide [TiO(OH)2], and titanyl nitrate [TiO(NO3)2] was obtained by reaction of TiO(OH)2 with nitric acid. Finally, the aqueous solution containing titanyl nitrate [TiO(NO3)2] and a fuel, urea, were mixed and combusted to obtain the nano-sized titania. The anatase TiO2 nanocrystalline ( ~56nm) with high BET surface area( 280 m2g-1) and narrow band gap energy( 2.7 eV) were thus obtained.