ISSN:
1572-879X
Keywords:
TiO2 thin film photocatalyst
;
ionized cluster beam deposition method
;
ion implantation
;
visible light
;
decomposition reaction of NO
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Transparent TiO2 thin film photocatalysts were prepared on transparent porous Vycor glass (PVG) by the ionized cluster beam (ICB) method. In order to improve the photocatalytic performance of these thin films under visible light irradiation, transition metal ions such as Cr and V were implanted into the deep bulk inside of the films using an advanced metal‐ion‐implantation technique. The UV‐vis absorption spectra of these metal‐ion‐implanted TiO2 thin films were found to shift smoothly toward visible light regions, its extent depending on the amount and kinds of metal ions implanted. Using these metal‐ion‐implanted TiO2 thin films as photocatalysts, the photocatalytic decomposition of NOx into N2 and O2 was successfully carried out under visible light (λ 450 nm) irradiation at 275 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019065521567
Permalink