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Recent progress in enhancing photocatalytic efficiency of TiO2-based materials

Paper ID Volume ID Publish Year Pages File Format Full-Text
39309 45817 2015 10 PDF Available
Title
Recent progress in enhancing photocatalytic efficiency of TiO2-based materials
Abstract

•Morphological change and chemical modification by incorporation of additional components in the TiO2 structure.•Various strategies for enhancing TiO2 photocatalytic efficiency.•Further strategies on how to tackle the challenge of the photocatalytic activity across the entire visible range.

Titanium dioxide (TiO2) has been proved to be a leading semiconductor material to removal of environmental pollutants. However, it suffers from low photocatalytic efficiency under visible-light irradiation and narrow light response range because of its intrinsic large band gap. One of the most significant scientific and commercial progresses to date has been the development of visible light active TiO2 by incorporation of additional components in the TiO2 structure. In this review, a variety of strategies to improve the photocatalytic efficiency and shift the photocatalysis to visible light range are discussed. The materials are covered in the review including TiO2/SiO2, TiO2/carbon nanotube, TiO2-graphene/grapheme oxide, non-metal and/or metal doped TiO2. Emphasis is given to highlight current techniques and recent progress in enhancing photocatalytic efficiency of TiO2-based materials, which drives the rising of some key strategies involved in the ongoing challenges and potential new directions of TiO2 photocatalysts.

Graphical abstractShifting the ultraviolet (UV) to visible-light-driven photocatalysis is realized by introducing extrinsic band gap via incorporation of additional components in the TiO2 structure.Figure optionsDownload full-size imageDownload high-quality image (141 K)Download as PowerPoint slide

Keywords
TiO2; Visible light; TiO2/SiO2; TiO2/carbon nanotube; TiO2-graphene/grapheme oxide; Non-metal doping; Metal decorating
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 495, 5 April 2015, Pages 131–140
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us