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

S.W. Lam; M. Hermawan; Heather Coleman; K. Fisher; R. Amal

doi:10.1016/j.molcata.2007.09.007

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

S.W. Lam, M. Hermawan, Heather Coleman, K. Fisher, R. Amal

Faculty Of Life & Health Sciences

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

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.

Original language	English
Pages (from-to)	152-159
Journal	Journal of Molecular Catalysis A: Chemical
Volume	278
Issue number	1-2
Early online date	10 Sept 2007
DOIs	https://doi.org/10.1016/j.molcata.2007.09.007
Publication status	Published online - 10 Sept 2007

Keywords

1
4-Dioxane
Ethylene glycol diformate
Photocatalysis
Copper(II) ions

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10.1016/j.molcata.2007.09.007

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

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.",

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T1 - The role of copper(II) ions in the photocatalytic oxidation of 1,4-dioxane

AU - Lam, S.W.

AU - Hermawan, M.

AU - Coleman, Heather

AU - Fisher, K.

AU - Amal, R.

PY - 2007/9/10

Y1 - 2007/9/10

N2 - 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.

AB - 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.

KW - 1

KW - 4-Dioxane

KW - Ethylene glycol diformate

KW - Photocatalysis

KW - Copper(II) ions

U2 - 10.1016/j.molcata.2007.09.007

DO - 10.1016/j.molcata.2007.09.007

M3 - Article

VL - 278

SP - 152

EP - 159

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 1-2

ER -

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

Abstract

Keywords

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