Document Detail


Photooxidative degradation of 4-nitrophenol (4-NP) in UV/H2O2 process: influence of operational parameters and reaction mechanism.
MedLine Citation:
PMID:  16860469     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The photooxidative degradation of 4-nitrophenol (4-NP) was studied in the UV/H2O2 process. The effects of applied H2O2 dose, initial 4-NP concentration and UV light intensity have been studied. Degradation was complete in 13 min and follows apparent first-order kinetics. The removal efficiency of 4-NP depends on the operational parameters and increases as the initial concentration of H2O2 and light intensity are increased but it decreases when the initial concentration of 4-NP is increased. From HPLC analysis, major intermediate products were hydroxyl derivatives of 4-NP as a result of photooxidative hydroxylation.
Authors:
N Daneshvar; M A Behnajady; Y Zorriyeh Asghar
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-06-18
Journal Detail:
Title:  Journal of hazardous materials     Volume:  139     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2006-12-20     Completed Date:  2007-04-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  275-9     Citation Subset:  IM    
Affiliation:
Water and Wastewater Treatment Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, CP 51664, Tabriz, Islamic Republic of Iran. nezam_daneshvar@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Chromatography, High Pressure Liquid
Hydrogen Peroxide / chemistry*
Kinetics
Nitrophenols / chemistry*
Oxidation-Reduction
Photolysis*
Ultraviolet Rays*
Water Purification / methods*
Chemical
Reg. No./Substance:
0/Nitrophenols; 100-02-7/4-nitrophenol; 7722-84-1/Hydrogen Peroxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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