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Enhanced photocatalytic activity of TiO2 powders doped by Fe unevenly

Paper ID Volume ID Publish Year Pages File Format Full-Text
51455 46843 2009 6 PDF Available
Title
Enhanced photocatalytic activity of TiO2 powders doped by Fe unevenly
Abstract

Two kinds of iron (III)-doped TiO2 powders photocatalysts were prepared by even doping and uneven doping methods, and were characterized by X-ray diffraction (XRD), TEM, UV–vis spectroscopy and X-ray photoelectron spectroscopy. The photocatalytic activities of TiO2-based nanoparticles were evaluated by the photocatalytic rate of methyl orange oxidation. TiO2 photocatalysts doped by Fe unevenly are the composite powders having the junction of n-type undoped TiO2 with p-type TiO2 doped by Fe evenly, was shown to have a much higher photocatlytic destruction rate than that of TiO2 photocatalysts doped by Fe evenly and undoped TiO2.

Keywords
TiO2; Fe; Even doping; Uneven doping; p–n Junctions
First Page Preview
Enhanced photocatalytic activity of TiO2 powders doped by Fe unevenly
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 6, 15 February 2009, Pages 894–899
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis