Photocatalyses of Nano-Scaled ZnSe/TiO2 and ZnS/TiO2 Heterojunctions

Ming Kwei Lee; Tsung Hsiang Shih; Chen Lia Ho; Hung Chang Lee; Chih Feng Yen; Hwai Fu Tu; Cho Han Fan

doi:10.4028/www.scientific.net/KEM.368-372.1474

Paper Titles

Preparation of Layered Potassium Titanate
p.1463

Structure Property of Titanium Dioxide Thin Films in Sintered Temperature by the Sol-Gel Method
p.1465

Preparation of Titania Film by Pyrolysis of Chelated Tetrabutyl Titanate
p.1468

Preparation of Titania Film by Vapor Decomposition of Chelated Tetrabutyl Titanate
p.1471

Photocatalyses of Nano-Scaled ZnSe/TiO₂ and ZnS/TiO₂ Heterojunctions
p.1474

XPS Investigation on Nano-TiO₂ Modified by Titanate Coupling Agent
p.1477

Preparation and Characterization of Raspberry-Like TiO₂/Cu Composite Particles
p.1480

Influence of Cu²⁺ Doping on the Photocatalytic Activity of TiO₂ Film
p.1483

Visible Light Photoreduction Properties of N-Doped TiO₂ Nanostructured Films
p.1486

HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Photocatalyses of Nano-Scaled ZnSe/TiO2 and...

Photocatalyses of Nano-Scaled ZnSe/TiO₂ and ZnS/TiO₂ Heterojunctions

Abstract:

High quality nano-scaled fluorine and nitrogen co-doped anatase phase TiO2 can be obtained from the conversion of ammonium oxotrifluorotitanate by thermal treatment. The photocatalytic activity of TiO2 treated at 800oC shows the highest photocatalytic activity and is about 1.3 times of commercial P-25. The heterojunctions of ZnSe/TiO2 and ZnS/TiO2 prepared by metal organic vapor phase epitaxy shows 2.0 and 1.5 times the photocatalytic activities of commercial P-25. In this study, nano-scaled TiO2, ZnSe/TiO2 and ZnS/TiO2 heterojunctions show one to one correspondence between carrier lifetime and photocatalytic activity.