UV-Irradiated Photocatalytic Degradation of Nitrobenzene by Titania Binding on Quartz Tube

A new method for UV-irradiated degradation of nitrobenzene by titania photocatalysts was proposed, titania nanoparticles were coated on a quartz tube through the introduction of tetraethyl orthosilicate into the matrix. The dependence of nitrobenzene photodegradation on pH, temperature, concentratio...

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Bibliographic Details
Published in:International journal of photoenergy 2012-01, Vol.2012 (2012), p.1-8
Main Authors: Whang, Thou-Jen, Hsieh, Mu-Tao, Shi, Tjaun-En, Kuei, Chun-Hsiung
Format: Article
Language:English
Subjects:
Aqueous solutions
Chemical oxygen demand
Degradation
Drinking water
Ethanol
Nitrates
Nitrobenzenes
Oxygen demand
Photocatalysis
Photodegradation
Quartz
Studies
Sulfide compounds
Titanium dioxide
Tubes
Water treatment
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Summary:A new method for UV-irradiated degradation of nitrobenzene by titania photocatalysts was proposed, titania nanoparticles were coated on a quartz tube through the introduction of tetraethyl orthosilicate into the matrix. The dependence of nitrobenzene photodegradation on pH, temperature, concentration, and air feeding was discussed, and the physical properties such as the activation energy, entropy, enthalpy, adsorption constant, and rate constant were acquired by conducting the reactions in a variety of experimental conditions. The optimum efficiency of the photodegradation with the nitrobenzene residue as low as 8.8% was achieved according to the experimental conditions indicated. The photodegradation pathways were also investigated through HPLC, GC/MS, ion chromatography (IC), and chemical oxygen demand (COD) analyses.
ISSN:1110-662X
1687-529X
DOI:10.1155/2012/681941