Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8915
Title: A study of kinetic modelling and reaction pathway of 2,4-dichlorophenol transformation by photo-fenton-like oxidation
Authors: Chu, W 
Kwan, CY
Chan, KH
Kam, SK
Keywords: 2,4-Dichlorophenol
Fenton
Mechanism
Oxidation
Photo
Issue Date: 2005
Publisher: Elsevier
Source: Journal of hazardous materials, 2005, v. 121, no. 1-3, p. 119-126 How to cite?
Journal: Journal of hazardous materials 
Abstract: The degradation of 2,4-dichlorophenol (2,4-DCP) by the photo-Fenton-like (Fe 3+/H 2O 2/UVC) process under various reaction conditions was investigated. It was interesting to find that the reaction kinetics of 2,4-DCP in Fe 3+/H 2O 2/UVC systems varied depending on the initial [Fe 3+] concentration. A pseudo first-order kinetic and a non-conventional kinetic were discovered at low and higher [Fe 3+] concentrations, respectively. A model was used to simulate the non-conventional kinetic process, where two character parameters (the initial decay rate and the final decay fraction) were found to be critical in determining the process. The two parameters successfully quantify the photo-Fenton-like oxidation under different concentrations of [Fe 3+] and [H 2O 2] and the corresponding ratios of Fe(III)/H 2O 2. The reaction intermediates were identified by an LC/MS analysis and a reaction mechanism was proposed.
URI: http://hdl.handle.net/10397/8915
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2005.01.019
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