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Enhancement of the Photodegradation of Methylene Blue by Combined Titania Photocatalyst and Photo-Fenton
-
Panagiotis Bouras
and
Dionysios D. Dionysiou
Published/Copyright:
November 30, 2016
Abstract
The decolorization of Methylene Blue has been studied in aqueous solutions in the presence of Titania nanocrystalline films alone or with added Fe2+ ions and a surplus of Hydrogen Peroxide. Thus photodecolorization could be obtained either by heterogeneous or combined heterogeneous and homogeneous (Photo-Fenton) photocatalysis. The combination of the two processes resulted in a large increase of the decolorization rate, which was explained by the role played by Titania in adsorbing Fe2+ and Fe3+ ions and reducing Fe3+ ions by excited electrons thus continuously feeding the Photo-Fenton reaction.
Received: 2008-3-12
Revised: 2008-6-9
Accepted: 2008-6-9
Published Online: 2016-11-30
Published in Print: 2008-8-1
© 2016 by Walter de Gruyter Berlin/Boston
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Keywords for this article
Titanium dioxide films-Photodegradation- Photo Fenton- Methylene Blue
Articles in the same Issue
- Toxicity Assessment and Degradation of Disperse Azo Dyes by Photoelectrocatalytic Oxidation on Ti/TiO2 Nanotubular Array Electrodes
- Photolysis and TiO2 Photocatalytic Treatment of Naproxen: Degradation, Mineralization, Intermediates and Toxicity
- Oxidation of Higher Alkanes at Moderate Reaction Conditions with Ozone in Presence of Mesoporous Materials
- Modulating the Oxidation of FMNH2 by Organophosphorus Compounds
- Enhancement of the Photodegradation of Methylene Blue by Combined Titania Photocatalyst and Photo-Fenton
- Epoxidation of Allyl Alcohol to Glycidol over Titanium-Silicalite Ti-Beta and Ti-MCM-41 Catalysts
- Photocatalysis with TiO2 and SnO2/TiO2 Films Examined by a Kinetic Model
- Photolytic and Photocatalytic Diminution and Preliminary Genotoxicity Studies of 2-Chloropyridine
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- Comparison of UV- and UV/VUV-Induced Photolytic and Heterogeneous Photocatalytic Degradation of Phenol, with Particular Emphasis on the Intermediates
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- Treatment of Antibiotic Formulation Wastewaters by Fenton Process
- Homogeneous and Heterogeneous Catalytic Ozonation of Pulp Bleaching Effluent
- Spectroscopic and Mass-Spectrometric Study of Acridine Orange Photodegradation on the Surface of Mesoporous TiO2, SiO2 /TiO2 and SiO2 Films
- Application of Response Surface Methodology to Optimise C.I. Acid Orange 7 Azo Dye Mineralization by UV/H2O2 Process
- Chemical Treatment by Fenton’s Reagent Oxidation and Ozonation of Wastewaters from Olive Oil Mill
- Analysis of Primary Degradation and Decolourization of Dyes in Water by an H2O2/UV Advanced Oxidation Process
- A Novel Adsorption/Saturation Approach to Ultrasonic Degradation of Phenol
