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Photo-Fenton degradation of methyl orange using H3PW12O40 supported Fe-bentonite catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
50996 46824 2012 5 PDF Available
Title
Photo-Fenton degradation of methyl orange using H3PW12O40 supported Fe-bentonite catalyst
Abstract

H3PW12O40 supported Fe-bentonite (HPW-Fe-Bent) was prepared by an impregnation method. Catalyst characterization showed H3PW12O40 and iron species were successfully immobilized on HPW-Fe-Bent. Photo-Fenton degradation of methyl orange (MO) by HPW-Fe-Bent as heterogeneous catalyst was studied. The impacts of various operating parameters on degradation ratio were analyzed. The results showed HPW-Fe-Bent used as heterogeneous catalyst in photo-Fenton process had a wide applicable range of pH and temperature. Moreover, HPW-Fe-Bent had a long-term stability for use, and retained almost all of its catalytic stability and activity after five recycling times. The possible mechanisms involving in photo-Fenton process were presented in paper.

Graphical abstractH3PW12O40 supported Fe-bentonite (HPW-Fe-Bent) was prepared by an impregnation method. Catalyst characterization showed H3PW12O40 and iron species were successfully immobilized on HPW-Fe-Bent. Photo-Fenton degradation of methyl orange (MO) by HPW-Fe-Bent as heterogeneous catalyst was studied. HPW-Fe-Bent had a wide applicable range of pH and temperature, a long-term stability for use in photo-Fenton process, and retained almost all of its catalytic stability and activity for five recycling times. The possible mechanisms involving in photo-Fenton process were presented in paper.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► H3PW12O40 supported Fe-bentonite catalyst was prepared and used in photo-Fenton process. ► HPW-Fe-Bent had certain advantages for practical application. ► The mechanisms involving in catalytic process were presented.

Keywords
Heteropoly acid; Phosphotungstic acid; Fe-bentonite; Photo-Fenton; Methyl orange
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Photo-Fenton degradation of methyl orange using H3PW12O40 supported Fe-bentonite catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 17, 5 January 2012, Pages 184–188
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