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The advancements in sol–gel method of doped-TiO2 photocatalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42104 45911 2010 11 PDF Available
Title
The advancements in sol–gel method of doped-TiO2 photocatalysts
Abstract

A critical review on the advancements in sol–gel method of doping TiO2 photocatalysts is provided. Various sol–gel and related systems of doping were considered, ranging from co-doping, transition metal ions doping, rare earth metal ions doping to other metals and non-metals ions doping of TiO2. The results available showed that doping TiO2 with transition metal ions usually resulted in a hampered efficiency of the TiO2 photocatalyst, though in some few cases, enhancements of the photocatalytic activity of TiO2 were recorded by doping it with some transition metal ions. In most cases, co-doping of TiO2 increases the efficiency of its photocatalytic activity. The review reveals that there are some elemental ions that cannot be used to dope TiO2 because of their negative effects on the photocatalytic activity of the catalyst, while others must be used with caution as their doping will create minimal or no impacts on the TiO2 photocatalytic efficiency.

Graphical abstractA critical review on the advancements in sol–gel method of doping TiO2 photocatalysts is provided. Various sol–gel and related systems of doping were considered, ranging from co-doping, transition metal ions doping, rare earth metal ions doping to other metal ions and non-metal ions doping of TiO2. In most cases, co-doping of TiO2 increases the efficiency of the materials photocatalytic activity.Figure optionsDownload full-size imageDownload high-quality image (41 K)Download as PowerPoint slide

Keywords
Sol–gel; Photocatalysts; Doping; Photocatalytic efficiency
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The advancements in sol–gel method of doped-TiO2 photocatalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 375, Issue 1, 26 February 2010, Pages 1–11
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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