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Preparation of novel nanometer TiO2 catalyst doped with upconversion luminescence agent and investigation on degradation of acid red B dye using visible light

Paper ID Volume ID Publish Year Pages File Format Full-Text
52895 46890 2007 5 PDF Available
Title
Preparation of novel nanometer TiO2 catalyst doped with upconversion luminescence agent and investigation on degradation of acid red B dye using visible light
Abstract

An unreported nanometer TiO2 photocatalyst doped with upconversion luminescence agent (40CdF2 · 60BaF2 · 0.8Er2O3) utilizing visible light was prepared. Its photocatalytic activity was checked through the photocatalytic degradation of acid red B as a model compound under visible light irradiation. Results show that the upconversion luminescence agent prepared as dopant can effectively turn visible lights to ultraviolet lights, which can be absorbed by nanometer TiO2 particles to produce the electron-cavity pairs. Therefore, the photocatalytic ability of this novel TiO2 photocatalyst has greatly been enhanced compared with undoped and common TiO2 photocatalyst.

Keywords
Upconversion luminescence agent; Nanometer TiO2 photocatalyst; Visible light irradiation; Acid red B
First Page Preview
Preparation of novel nanometer TiO2 catalyst doped with upconversion luminescence agent and investigation on degradation of acid red B dye using visible light
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 607–611
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis