About this Materials Science article
A relation between the non-stoichiometry and hydroxyl radical generated at photocatalytic TiO2 on 4CP decomposition by Kwang-Wook Kim; Eil-Hee Lee; Young-Jun Kim; Mi-Hye Lee; Kwang-Ho Kim; Dong-Woo Shin is a Materials Science article available to read on EtoBox.
In order to know an interrelationship between OH radical generated on the TiO 2 surface under an UV irradiation and the existence of non-stoichiometric titanium oxide of TiO x (0 < x < 2) in the TiO 2 , SIMS measurements and peak analyses of XPS on three kinds of TiO 2 samples were carried out, and ESR spectra of DMPO-OH adduct through spin-trapping of OH radical generated on the TiO 2 samples were measured. The generation of OH radical was approximately linear to the degree of non-stoichiometry of the TiO 2 . Removal of TOC of 4CP was affected by the total surface area of the particles in the TiO 2 slurry and the non-stoichiometry within TiO 2 . The particle size in the slurry depended on the mixing condition of the preparation of the slurry and the morphology of agglomeration of TiO 2 particles. The TiO 2 particles in the slurry were dispersed in much smaller size than those of TiO 2 samples on SEM.
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Kwang-Wook Kim; Eil-Hee Lee; Young-Jun Kim; Mi-Hye Lee; Kwang-Ho Kim; Dong-Woo Shin
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1010-6030)
- Published
- 2003
- Language
- EN
- Field
- Materials Science (Physical Sciences)