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Photocatalytic activity of TiO2/ZSM-5 composites in the presence of SO42− ion

Paper ID Volume ID Publish Year Pages File Format Full-Text
48241 46497 2008 6 PDF Available
Title
Photocatalytic activity of TiO2/ZSM-5 composites in the presence of SO42− ion
Abstract

TiO2/ZSM-5 composites were prepared from SiO2 of rice husk ash and TiO2 sol from hydrolyzed TiOSO4 salt. The combined effect of these two materials greatly enhanced the photocatalytic decolorization of methylene blue dye solution. The instant decolorization of the dye solution in the dark by the composite, TiO2/ZSM-5 (wt ratio 1:1), resulted from the combination of the adsorption by ZSM-5 zeolite and TiO2 nano-particles, and of Na2SO4 salt adhering to the composite surface. As a strong flocculating agent, the SO42− ion caused the precipitation of the dye onto the composite surface which consequently enhanced the photocatalytic decolorization of the dye under UV irradiation. The composite, TiO2/ZSM-5 (wt ratio 1:5), completely decolorized the methylene blue dye in 2.5 h, giving an equivalent performance to that of TiO2, P-25 powder.

Keywords
TiO2; TiO2/ZSM-5; Photocatalyst; Adsorption; Decolorization
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Photocatalytic activity of TiO2/ZSM-5 composites in the presence of SO42− ion
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 80, Issues 3–4, 8 May 2008, Pages 271–276
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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