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Comparative study of the UV and UV/VUV-induced photolysis of phenol in aqueous solution

Paper ID Volume ID Publish Year Pages File Format Full-Text
28426 44074 2007 10 PDF Available
Title
Comparative study of the UV and UV/VUV-induced photolysis of phenol in aqueous solution
Abstract

The UV (254 nm) and UV/VUV (254/185 nm) photolysis of phenol and the distribution of the products in solutions saturated with oxygen or nitrogen were investigated and compared. The initial rate of degradation of phenol in UV/VUV-irradiated solutions exceeded that determined in UV-irradiated solutions, but the difference decreased dramatically with increase of the initial phenol concentration. The effects of methanol as HO scavenger demonstrated that the relative contribution of the HO-based reactions to the decomposition of phenol in UV/VUV-irradiated solutions decreased strongly with increase of the initial phenol concentration. The same aromatic (1,2- and 1,4-dihydroxybenzene) and aliphatic (maleic, malic, tartaric and oxalic acids) intermediates were detected in UV- and UV/VUV-irradiated solutions saturated with oxygen. The decompositions of 1,2- and 1,4-dihydroxybenzene, 1,4-benzoquinone and oxalic acid were also investigated both in UV/VUV- and in UV-irradiated solutions.

Keywords
254 nm; 185 nm; Hydroxyl radical; Phenoxyl radical; Phenol
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Comparative study of the UV and UV/VUV-induced photolysis of phenol in aqueous solution
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 188, Issues 2–3, 20 May 2007, Pages 409–418
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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