Photocatalytic Degradation of Herbicide Quinmerac in Various Types of Natural Water

Despotović, Vesna; Abramović, Biljana F.; Šojić, Daniela V.; Kler, Sanja; Dalmacija, Milena; Bjelica, Luka J.; Orčić, Dejan

doi:10.1007/s11270-012-1084-x

Cited by 21 publications

(12 citation statements)

References 31 publications

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“…pH may change the charge at the surface and thus, the interaction between the semiconductor surface, solvent molecules, substrate, and radicals formed. The point of zero charge (pHpzc) of P25 is between pH 6.30 and 6.60 [44,45]. At pH < pHpzc, the surface of photocatalyst is positively, while at pH > pHpzc, it is negatively charged.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Photocatalytic, photolytic and radiolytic elimination of imidacloprid from aqueous solution: Reaction mechanism, efficiency and economic considerations

Rózsa

Náfrádi

Alapi

et al. 2019

Applied Catalysis B: Environmental

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Section: Accepted Manuscriptmentioning

confidence: 99%

Photocatalytic, photolytic and radiolytic elimination of imidacloprid from aqueous solution: Reaction mechanism, efficiency and economic considerations

Rózsa

Náfrádi

Alapi

et al. 2019

Applied Catalysis B: Environmental

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“…It is known that alcohols like ethanol or methanol act as • OH scavengers [38,39], so we wanted to investigate whether the photodegradation of AMX takes place via • OH by adding ethanol to the reaction mixture. Ethanol was chosen because the products of the reaction are weaker oxidants (alkoxy-radicals) that react with the substrate [40].…”

Section: The Effect Of • Oh Scavengermentioning

confidence: 99%

Amoxicillin photodegradation by nanocrystalline TiO2

Radosavljević¹,

Golubović

Radišić³

et al. 2017

CI&CEQ

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“…2 reports chromatograms obtained using TiO 2 Wackherr and Degussa P25 in the presence of the studied electron acceptors, showing that the occurrence of certain intermediates (represented by unassigned peaks) significantly depended on the applied electron acceptor and catalyst. Moreover, according to literature data, 10,38,40,41 it is suggested that the application of an optimal concentration of electron acceptors is of great importance to achieve the maximum removal of organic compounds from the system. For this reason, the effects of the acceptor concentrations were studied in this case as well.…”

Section: Effect Of Electron Acceptorsmentioning

confidence: 99%

Influence of electron acceptors on the kinetics of metoprolol photocatalytic degradation in TiO₂ suspension. A combined experimental and theoretical study

et al. 2015

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ARTICLE This journal isMetoprolol (MET) belongs to a group of frequently used β 1 -blockers, which often occur in waste waters. The objective of this work was to employ liquid chromatography (LC) and total organic carbon methods to study the photocatalytic degradation of MET in UV irradiated aqueous suspensions of TiO 2 (Wackherr's "Oxyde de titane standard" and Degussa P25), in the presence of different electron acceptors such as molecular oxygen, hydrogen peroxide, potassium bromate, and ammonium persulfate. The degradation rates were found to be strongly influenced by the kind of electron acceptor and the type of catalyst. The optimal amount of hydrogen peroxide and potassium bromate was investigated as well. MET photocatalytic degradation was fastest in the presence of O 2 and potassium bromate with TiO 2 Degussa P25, while mineralization was most efficient in the presence of molecular oxygen alone. In all investigated cases, degradation followed a pseudo-first order kinetics. Reaction intermediates of MET degradation in the presence of different electron acceptors with both catalysts were studied in detail and a number of them were indentified using LC-ESI-MS/MS. The interactions with MET of reactive radical species relevant to this study ( − • 2 O , • OH, • 2 BrO , and − • 4 SO ) were theoretically investigated by means of density functional theory (DFT) computations. § Electronic supplementary information (ESI) available: Influence of electron acceptors on the kinetics of metoprolol photocatalytic degradation in TiO2 suspension. A combined experimental and theoretical study.− 2 8 2 O S , and − 3BrO , can act as electron acceptors to enhance the photodegradation efficiency. These electron acceptors can have several effects including: (I) avoidance of e − −h + recombination because of scavenging of conduction-band electrons; (II) increase of the concentration of • OH and (III) production of other oxidizing species that can enhance the oxidation rate of the substrate and of its intermediate compounds. 10

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Photocatalytic Degradation of Herbicide Quinmerac in Various Types of Natural Water

Cited by 21 publications

References 31 publications

Photocatalytic, photolytic and radiolytic elimination of imidacloprid from aqueous solution: Reaction mechanism, efficiency and economic considerations

Photocatalytic, photolytic and radiolytic elimination of imidacloprid from aqueous solution: Reaction mechanism, efficiency and economic considerations

Amoxicillin photodegradation by nanocrystalline TiO2

Influence of electron acceptors on the kinetics of metoprolol photocatalytic degradation in TiO₂ suspension. A combined experimental and theoretical study

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