Title :
Preparation of nano-sized TiO2 sol and its visible-light-responsive photocatalysis in aquatic state
Author :
Tseng, Y.-H. ; Liu, S.-L. ; Kuo, C.-S. ; Huang, C.-H. ; Huang, Y.-L. ; Li, Y.-Y. ; Sano, T. ; Negishi, N. ; Matsuzawa, S.
Author_Institution :
Energy & Environ. Res. Labs., Ind. Technol. Res. Inst., Taiwan
fDate :
12/1/2006 12:00:00 AM
Abstract :
A nano-sized anatase TiO2 sol was prepared by a chemical coprecipitisation-peptisation method. In this study, the visible-light response for photo-decolouration was observed in sol state. The decolouration rate of methylene blue was decreased with increasing light wavelength. The reason for the visible-light response of TiO2 sol was explained by the band-gap that is reduced due to the N impurity of TiO2 sol
Keywords :
catalysis; energy gap; materials preparation; photochemistry; precipitation (physical chemistry); sols; titanium compounds; N impurity; TiO2:N; anatase; aquatic state; band-gap; chemical coprecipitisation-peptisation method; light wavelength; methylene blue; nano-sized TiO2 sol; photo-decolouration; preparation; visible-light-responsive photocatalysis;
Journal_Title :
Micro & Nano Letters, IET
