摘要
The commercial TiO2 nanopowder and micropowder of anatase phase and rutile phase have been characterized by X-ray diffraction （XRD） and electron spin resonance （ESR） spectroscopy. XRD patterns and ESR spectra of nano-TiO2 in rutile and anatase phases exhibit broad peaks whereas both phases of micro-TiOz demonstrate very sharp peaks. Furthermore, the anatase phase of both particle sizes provide ESR peak at a magnetic field around 3568.25G, On the other hand, this peak is not established in the rutile phase of both particle sizes.
The commercial TiO2 nanopowder and micropowder of anatase phase and rutile phase have been characterized by X-ray diffraction （XRD） and electron spin resonance （ESR） spectroscopy. XRD patterns and ESR spectra of nano-TiO2 in rutile and anatase phases exhibit broad peaks whereas both phases of micro-TiOz demonstrate very sharp peaks. Furthermore, the anatase phase of both particle sizes provide ESR peak at a magnetic field around 3568.25G, On the other hand, this peak is not established in the rutile phase of both particle sizes.
基金
supported by the Department of Physics,Faculty of Science,King Mongkut's University of Technology Thonburi
