کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
67725 | 48492 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The role of copper(II) ions in the photocatalytic oxidation of 1,4-dioxane
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
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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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 278, Issues 1–2, 14 December 2007, Pages 152–159
Journal: Journal of Molecular Catalysis A: Chemical - Volume 278, Issues 1–2, 14 December 2007, Pages 152–159
نویسندگان
S.W. Lam, M. Hermawan, H.M. Coleman, K. Fisher, R. Amal,