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The role of copper(II) ions in the photocatalytic oxidation of 1,4-dioxane

Lam, S.W., Hermawan, M., Coleman, Heather, Fisher, K. and Amal, R. (2007) The role of copper(II) ions in the photocatalytic oxidation of 1,4-dioxane. Journal of Molecular Catalysis A: Chemical, 278 (1-2). pp. 152-159. [Journal article]

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URL: http://dx.doi.org/10.1016/j.molcata.2007.09.007

DOI: doi:10.1016/j.molcata.2007.09.007

Abstract

The effect of Cu2+ on the photocatalytic oxidation of 1,4-dioxane was evaluated. The addition of Cu2+ led to an enhancing effect in the photocatalytic degradation and mineralisation of 1,4-dioxane for both pH 3 and 5. This positive role of Cu2+ was attributed to its involvement in the ligand-to-metal charge transfer (LMCT) process, where Cu2+ formed complexes with 1,4-dioxane and/or its intermediate products, providing an alternative routes for the oxidation reaction via photoredox mechanism. The supporting evidence to the complexes formation has been confirmed using an electron spin resonance (ESR) spectroscopy and the semi-empirical PM3 calculation.

Item Type:Journal article
Keywords:1,4-Dioxane; Ethylene glycol diformate; Photocatalysis; Copper(II) ions
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:35706
Deposited By: Dr Heather Coleman
Deposited On:08 Sep 2016 08:12
Last Modified:17 Oct 2017 16:25

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