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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

A study of kinetic modelling and reaction pathway of 2,4-dichlorophenol transformation by photo-fenton-like oxidation.

The degradation of 2,4-dichlorophenol (2,4-DCP) by the photo-Fenton-like (Fe3+/H2O2/UVC) process under various reaction conditions was investigated. It was interesting to find that the reaction kinetics of 2,4-DCP in Fe3+/H2O2/UVC systems varied depending on the initial [Fe3+] concentration. A pseudo first-order kinetic and a non-conventional kinetic were discovered at low and higher [Fe3+] 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 [Fe3+] and [H2O2] and the corresponding ratios of Fe(III)/H2O2. The reaction intermediates were identified by an LC/MS analysis and a reaction mechanism was proposed.[1]

References

  1. A study of kinetic modelling and reaction pathway of 2,4-dichlorophenol transformation by photo-fenton-like oxidation. Chu, W., Kwan, C.Y., Chan, K.H., Kam, S.K. Journal of hazardous materials. (2005) [Pubmed]
 
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