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학술저널
저자정보
Wang, Lei (Clermont Universite, Universite Blaise Pascal, Laboratoire de Photochimie Moleculaire et Macromoleculaire) Zhang, Changbo (Clermont Universite, Universite Blaise Pascal, Laboratoire de Photochimie Moleculaire et Macromoleculaire) Mestankova, Hana (Clermont Universite, Universite Blaise Pascal, Laboratoire de Photochimie Moleculaire et Macromoleculaire) Wu, Feng (School of Resources and Environmental Science, Wuhan University) Deng, Nansheng (School of Resources and Environmental Science, Wuhan University) Pan, Gang (Research Centre for Eco-environmental Science, Chinese Academy of Sciences) Bolte, Michele (Clermont Universite, Universite Blaise Pascal, Laboratoire de Photochimie Moleculaire et Macromoleculaire) Mailhot, Gilles (Clermont Universite, Universite Blaise Pascal, Laboratoire de Photochimie Moleculaire et Macromoleculaire)
저널정보
한국광과학회 Photochemical & photobiological sciences : an international journal Photochemical & photobiological sciences : an international journal 제8권 제7호
발행연도
2009.1
수록면
1,059 - 1,065 (7page)

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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 (${\lambda}$ = 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.

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