NDLI: Photoinduced degradation of 2,4-dichlorophenol in water: influence of various Fe(iii) carboxylates

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Photochemical & Photobiological Sciences Vol - 8 Issue - 6

Photochemical & Photobiological Sciences Vol - 8 Issue - 5

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Photochemical & Photobiological Sciences Vol - 8 Issue - 3

Photochemical & Photobiological Sciences Vol - 8 Issue - 2

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Photoinduced degradation of 2,4-dichlorophenol in water: influence of various Fe(iii) carboxylates

Content Provider	Royal Society of Chemistry (RSC)
Author	Mestankova, Hana Wu, Feng Mailhot, Gilles Zhang, Changbo Pan, Gang Wang, Lei Bolte, Michèle Deng, Nansheng
Copyright Year	2009
Abstract	Fe(III)–carboxylate complexes were investigated with respect to tri-carboxylic (citric), di-carboxylic (tartaric) and mono-carboxylic (pyruvic) acids. In agreement with the chemical structure, results demonstrated that Fe(III) was complexed by citric acid with a ratio of 1 : 1 (Fe/ligand), tartaric acid (D or L) with a ratio of 1 : 2 and by pyruvic acid with a ratio of 1 : 3. The iron concentration was fixed at 0.3 mmol L−1 and the ligand concentration ranged from 0 to 1.0 mmol L−1. The primary stage of 2,4-dichlorophenol (2,4-DCP) degradation photoinduced by these Fe(III) complexes was investigated under monochromatic irradiation (λ = 365, 313 and 296 nm). The values of initial quantum yields of 2,4-DCP disappearance (between 0.01 and 0.135) and Fe(II) formation (between 0.002 and 0.47) were evaluated and are presented in detail. Short irradiation wavelength (296 nm), low pH (3.0) and high oxygen concentration favoured the pollutant degradation. The disappearance of 2,4-DCP was complete under these favourable conditions.
Starting Page	1059
Ending Page	1065
Page Count	7
File Format	HTM / HTML PDF
ISSN	1474905X
Volume Number	8
Issue Number	7
Journal	Photochemical & Photobiological Sciences
DOI	10.1039/b902607j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Quantum Oxygen 2,4-Dichlorophenol Carboxylic acid Ligand Wavelength
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

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