Evaluation of a TiO2 photocatalysis treatment on nitrophenols and nitramines contaminated plant wastewaters by solid-phase extraction coupled with ESI HPLC–MS

Perchet, Geoffrey; Merlina, Georges; Revel, Jean-Claude; Hafidi, Mohamed; Richard, Claire; Pinelli, Éric

doi:10.1016/j.jhazmat.2008.11.013

Cited by 28 publications

(19 citation statements)

References 31 publications

(34 reference statements)

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“…Perchet et al studied the degradation of dinoseb in presence of UV/TiO 2 in nitramines and nitrophenol-contaminated waste water using ESI HPLC-MS [17]. Beside this study no detailed photocatalyzed degradation of dinoseb was reported.…”

Section: Introductionmentioning

confidence: 95%

Photoassisted Degradation of a Herbicide Derivative, Dinoseb, in Aqueous Suspension of Titania

Mir

Haque

Khan

et al. 2012

The Scientific World Journal

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The titanium dioxide (TiO2) photoassisted degradation of herbicide dinoseb has been examined in aqueous suspensions under UV light irradiation. The degradation kinetics were studied under various conditions such as substrate concentration, type of catalyst, catalyst dosage, pH, and light intensity as well as in presence of electron acceptors such as hydrogen peroxide, potassium bromate, and potassium persulphate under continuous air purging, and the degradation rates were found to be strongly influenced by these parameters. The Degussa P25 was found to be more efficient photocatalyst as compared to other photocatalysts tested. Dinoseb was found to degrade efficiently in acidic pH and all the electron acceptors studied enhanced the degradation rate. The results manifested that the photocatalysis of dinoseb followed pseudo-first-order kinetics. A qualitative study of the degradation products generated during the process was performed by GC-MS, and a degradation mechanism was proposed.

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Section: Introductionmentioning

confidence: 95%

Photoassisted Degradation of a Herbicide Derivative, Dinoseb, in Aqueous Suspension of Titania

Mir

Haque

Khan

et al. 2012

The Scientific World Journal

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“…In 1976, Carey et al [2] found that after irradiated by UV light, TiO 2 was capable to catalyze the dechloridization of polychlorobiphenyl (a group of organic pollutants) in water, which initiated the application of the photocatalytic technology on environmental remediation. In the past decades, TiO 2 has been applied in decomposition and mineralization of some persistent organic pollutants (POPs) such as phenols, chlorophenols, pestcides, herbicides, benzenes, humic acids and others [3][4][5][6][7], as well as water and air purification [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A novel approach of preparing TiO2 films at low temperature and its application in photocatalytic degradation of methyl orange

Zhang

Wan

2010

Journal of Hazardous Materials

141

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“…Earlier, Perchant et al studied the degradation of Dinoterb in the presence of UV/ TiO 2 in nitroamines-and nitrophenol-contaminated waste water using ESI HPLC-MS [3].…”

Section: Introductionmentioning

confidence: 99%

Photocatalysed degradation of a herbicide derivative, Dinoterb, in aqueous suspension

et al. 2011

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The photocatalytic degradation of a herbicide derivative, Dinoterb (1), has been investigated in aqueous micellar solution in the presence of titanium dioxide (TiO 2 ) and air as a function of irradiation time under a variety of conditions using UV and HPLC analysis techniques. The degradation kinetics was studied under different conditions such as different types of TiO 2 , catalyst concentration, substrate concentration and reaction pH in the presence of air. The photocatalyst Degussa P25 was found to be more efficient catalyst as compared to other photocatalysts tested. The model compound was found to degrade more efficiently under neutral pH as compared to acidic and alkaline pH. GC/MS analysis of the irradiated samples indicate the formation of 2-isopropyl-4,6-dinitro-phenol as by-product which has been characterized on the basis of molecular ion and mass fragmentation pattern. A probable pathway for its formation has been proposed.

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Evaluation of a TiO2 photocatalysis treatment on nitrophenols and nitramines contaminated plant wastewaters by solid-phase extraction coupled with ESI HPLC–MS

Cited by 28 publications

References 31 publications

Photoassisted Degradation of a Herbicide Derivative, Dinoseb, in Aqueous Suspension of Titania

Photoassisted Degradation of a Herbicide Derivative, Dinoseb, in Aqueous Suspension of Titania

A novel approach of preparing TiO2 films at low temperature and its application in photocatalytic degradation of methyl orange

Photocatalysed degradation of a herbicide derivative, Dinoterb, in aqueous suspension

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