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Physical property and photo-catalytic activity of sulfur doped TiO2 catalysts responding to visible light

Paper ID Volume ID Publish Year Pages File Format Full-Text
55534 47056 2012 4 PDF Available
Title
Physical property and photo-catalytic activity of sulfur doped TiO2 catalysts responding to visible light
Abstract

The S-doping caused the photon-to-carrier conversion in the energy region below the band gap of pure TiO2. The photocatalyst applications of the S-doped TiO2, therefore, are of great importance. Synthesized S-doped TiO2 powders were characterized by SEM, EDS, XRD, UV–vis, FT-IR and Raman spectroscopy tests. The photocatalytic activity of S-doped TiO2 powder and Degussa p-25 was evaluated using UV–vis absorption spectroscopy through degradation of methyleneblue (MB) solution. The S-doped TiO2 powders with size ∼50 nm were successfully prepared by thermal hydrolysis method. Only anatase phase was detected by Raman results for S-doped TiO2 powders calcined at 600 °C for 70 min. Photocatalytic activity of sample for degradation of methylene blue showed that 0.56% S-doped TiO2 under visible light has higher photocatalytic activity than Degussa p-25.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (51 K)Download as PowerPoint slideHighlights► We have synthesized S-doped TiO2 photocatalyst. ► The S modification further enhanced the crystallization degree of the anatase. ► The S modification resulted in a slight absorbance for visible lights. ► S-doped TiO2 under visible light has higher photocatalytic activity than Degussa p-25. ► S-doped TiO2 could be easily activated by visible lights.

Keywords
S-doped TiO2; Photocatalyst; Photocatalytic activity; Methylene blue; Degussa p-25
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Physical property and photo-catalytic activity of sulfur doped TiO2 catalysts responding to visible light
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 185, Issue 1, 20 May 2012, Pages 259–262
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