Preparation of nanocrystalline anatase TiO2 using basic sol-gel method
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Xiong Bi-Tao
,
Zhou Bao-Xue
Abstract
Nanocrystalline titanium dioxide particles with anatase structure and high thermal stability have been synthesized using the basic sol-gel method. The particle size and morphology were refined under hydrothermal conditions in the presence of different concentrations of tetramethylammonium hydroxide (TMAH) at 210°C and 230°C. XRD and TEM analysis showed that the TiO2 particles obtained were homogeneous and monodispersive at low contents of TMAH. All intense peaks, clearly observed in the XRD patterns, were assigned to the anatase phase and no rutile phase was observed. At high contents of TMAH, nanoscale small (10–30 nm) and larger (>100 nm) TiO2 particles were one-pot synthesized. The nanocrystalline TiO2 particles synthesized by this method have good thermal stability. With the sintering temperature of up to 650°C, all the XRD peaks maintained good agreement with the anatase reference data.
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© 2008 Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Square-wave adsorptive stripping voltammetric determination of an antihistamine drug astemizole
- Flow injection spectrophotometric determination of iron(III) using diphenylamine-4-sulfonic acid sodium salt
- Sensitive determination of nitrogenous hydrochloride drugs via their reaction with ammonium molybdate
- Effect of different Fe(III) compounds on photosynthetic electron transport in spinach chloroplasts and on iron accumulation in maize plants
- Comparison of different technologies for alginate beads production
- Design and economics of industrial production of fructooligosaccharides
- Preparation of nanocrystalline anatase TiO2 using basic sol-gel method
- 3,5-Bis(2-hydroxyphenyl)-1H-1,2,4-triazole based ligands — protonation and metal complex formation
- Synthesis, characterization, fluorescence and redox features of new vic-dioxime ligand bearing pyrene and its metal complexes
- Synthesis and characterization of diaminomaleonitrile-functionalized polystyrene grafts for application in pervaporation separation
- Synthesis and magnetic properties of polymeric complexes containing ruthenium(II)-ruthenium(III) tetracarboxylato units linked by cyanato, thiocyanato, and selenocyanato ligands
- Preparation and modification of collagen-based porous scaffold for tissue engineering
- Synthesis, crystal structure, and magnetic properties of a cobalt(II) complex with (3,5-dichloropyridin-4-yl)(pyridin-4-yl)methanol
- Synthesis and reactions of 2-[3-(trifluoromethyl)phenyl]furo[3,2-c]pyridine
- Alkalimetric determination of hydrophobic pharmaceuticals using stabilized o/w emulsions
- Extraction and analysis of ellagic acid from novel complex sources
