Published 2008
| Version v1
Journal article
Analysis of Polymorphic Nano crystals of TiO2 by X-Ray Rietveld Refinement and High-Resolution Transmission Electron Microscopy: Acetaldehyde Decomposition
Creators
- 1. Programa de Ingenieria Molecular, Instituto Mexicano del Petroleo, 07730 (Mexico)
- 2. Departamento de Ingenieria Metalurgica, Escuela Superior de Ingenieria Quimica e Industrias Extractivas (ESIQIE), Instituto Politecnico Nacional (IPN), AP. 75-876, Mexico 07300 (Mexico)
Description
In this work, TiO2 nanocrystals were synthesized by the sol-gel method. These materials were annealed at 200 and 500 degree C; and characterized by the XRD-Rietveld refinement; and by BET and TEM. As for the low-temperature-treated sample (200 degree C), nanocrystals with small crystallite sizes (7 nm) and high abundance of anatase, coexisting with the brookite phase, were obtained. Meanwhile, the sample annealed at 500 degree C showed an increased crystallite size (22 nm) and an important polymorphic increment. The sample annealed at 200 degree C showed a high activity in the photo catalytic decomposition of acetaldehyde.
Additional details
Publishing Information
- Journal Title
- Journal of Nanotechnology (Print)
- Journal Volume
- 2008
- Journal Issue
- 2008
- Journal Page Range
- p. 5
- ISSN
- 1687-9503
INIS
- Country of Publication
- Egypt
- Country of Input or Organization
- Egypt
- INIS RN
- 42017215
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- ABUNDANCE; ACETALDEHYDE; CHEMICAL COMPOSITION; CRYSTALS; DECOMPOSITION; MONOCRYSTALS; PARTICLE SIZE; SYNTHESIS; TEMPERATURE RANGE 0273-0400 K; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY
- Descriptors DEC
- ALDEHYDES; CHALCOGENIDES; CHEMICAL REACTIONS; CRYSTALS; ELECTRON MICROSCOPY; MICROSCOPY; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SIZE; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS