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Photoelectrocatalytic properties of Cu2+-doped TiO2 film under visible light

Paper ID Volume ID Publish Year Pages File Format Full-Text
45782 46422 2013 8 PDF Available
Title
Photoelectrocatalytic properties of Cu2+-doped TiO2 film under visible light
Abstract

Cu2+-doped TiO2 film on stainless steel substrates was prepared using sol–gel method. Based on XRD and SEM analysis results, the as-prepared film was mainly in anatase phase. The film was smooth and the thickness of the film was about 2 μm. The UV–vis absorption of Cu2+-doped TiO2 was extended to visible range, which is favorable for the utilization of solar light. The photoelectrochemical properties of the samples were investigated via electrochemical impedance spectrum (EIS). The EIS plots demonstrated that the Cu2+-doped TiO2 can be excited under visible light irradiation and the photo-generated electron–hole pairs can be separated efficiently by applying an external bias. The degradation experiments for methylene blue and methyl orange in different processes showed that the photo-response range of TiO2 could be extended by doping Cu2+ ion and the photocatalytic activity of TiO2 could be enhanced with the help of a forward bias.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Cu2+-doped TiO2 film on stainless steel substrates was prepared. ► Cu2+-doped TiO2 can be excited under visible light irradiation. ► The photo-generated electron–hole pairs can be separated efficiently by applying an external bias.

Keywords
Photoelectrocatalysis; Cu2+ ion doping; TiO2 film; Visible light
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Photoelectrocatalytic properties of Cu2+-doped TiO2 film under visible light
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 134–135, 2 May 2013, Pages 185–192
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