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1. Enhancement of iron-mediated activation of persulfate using catechin: From generation of reactive species to atenolol degradation in water

Author:
Brigante, Marcello,   et al.   ; Wu, Yanlin; Monfort, Olivier; Dong, Wenbo; Mailhot, Gilles;     Show all 5 Authors
Source:
The Science of the total environment 2019 v.697
ISSN:
0048-9697
Subject:
catechin; chemical species; hydrogen peroxide; hydroxyl radicals; ions; iron; models; oxidation; photolysis; pollutants; reaction mechanisms; solar radiation; sulfates; tea; ultraviolet radiation
Abstract:
... Persulfate (PS) activation reaction, which forms sulfate radical (SO4−), can be used to degrade organic pollutants in water. However, a drawback of this reaction is that the regeneration of ferrous ions requires a high concentration of hydrogen peroxide (Fenton-like reaction) or use of UV radiation. Catechin (CAT), a non-toxic antioxidant of natural origin from tea, is used in this work to improve ...
DOI:
10.1016/j.scitotenv.2019.134188

2. Phenanthrene degradation using Fe(III)-EDDS photoactivation under simulated solar light: A model for soil washing effluent treatment

Author:
Brigante, Marcello,   et al.   ; Tao, Yufang; Zhang, Hui; Mailhot, Gilles;     Show all 4 Authors
Source:
Chemosphere 2019 v.236 pp. 124366
ISSN:
0045-6535
Subject:
free radicals; iron; irradiation; lighting; models; nonionic surfactants; pH; phenanthrenes; photolysis; pollutants; polysorbates; soil; soil washing; solar radiation
Abstract:
... In this work, for the first time, the nonionic surfactant polyoxyethylene-(20)-sorbitan monooleate (Tween 80, C64H124O26) aided soil washing effluent was treated by enhanced activation of persulfate (PS) using Fe(III)-EDDS (EDDS: ethylenediamine-N, N-disuccinic acid) complexes under simulated solar light irradiation. The performance of this system was followed via the production and reactivity of ...
DOI:
10.1016/j.chemosphere.2019.124366

3. A new source of ammonia and carboxylic acids in cloud water: The first evidence of photochemical process involving an iron-amino acid complex

Author:
Brigante, Marcello,   et al.   ; Marion, Aurélie; Mailhot, Gilles;     Show all 3 Authors
Source:
Atmospheric environment 2018
ISSN:
1352-2310
Subject:
amino acids; ammonia; atmospheric chemistry; formic acid; hydrogen peroxide; hydroxyl radicals; iron; irradiation; oxalates; photochemistry; ultraviolet radiation
Abstract:
... In the present study we investigate the photochemical properties and impact on cloud water of ferric-aspartate complex (Fe(III)−Asp) under irradiation. Fe(III)−Asp complex was investigated as proxy of ferric-amino acids complexes that could be expected to be present in cloud water. First, the fate of complex under monochromatic (313 and 365 nm) and polychromatic (λ ≥ 290 nm) irradiation is investi ...
DOI:
10.1016/j.atmosenv.2018.09.060

4. Formation of substances with humic-like fluorescence properties, upon photoinduced oligomerization of typical phenolic compounds emitted by biomass burning

Author:
Brigante, Marcello,   et al.   ; Vione, Davide; Albinet, Alexandre; Barsotti, Francesco; Mekic, Majda; Jiang, Bin; Minero, Claudio; Gligorovski, Sasho;     Show all 8 Authors
Source:
Atmospheric environment 2019 v.206 pp. 197-207
ISSN:
1352-2310
Subject:
acetosyringone; air; atmospheric chemistry; biomass; burning; fluorescence; guaiacol; irradiation; lighting; mass spectrometry; oligomerization; photolysis; vanillic acid; vanillin
Abstract:
... The irradiation under simulated sunlight of some phenolic compounds typically emitted in ambient air by biomass burning, namely vanillin and acetosyringone, yielded intermediates with humic-like fluorescence properties that can be assimilated to humic-like substances (HULIS). Evidence was obtained by ultra-high-resolution mass spectrometry of the occurrence of oligomerization processes up to the f ...
DOI:
10.1016/j.atmosenv.2019.03.005

5. Exploring the ionic strength effects on the photochemical degradation of pyruvic acid in atmospheric deliquescent aerosol particles

Author:
Brigante, Marcello,   et al.   ; Mekic, Majda; Vione, Davide; Gligorovski, Sasho;     Show all 4 Authors
Source:
Atmospheric environment 2018 v.185 pp. 237-242
ISSN:
1352-2310
Subject:
absorption; aerosols; aqueous solutions; atmospheric chemistry; ionic strength; models; photolysis; pyruvic acid; sodium perchlorate; spectral analysis
Abstract:
... There is increasing evidence that aqueous-phase atmospheric chemistry is an important source of secondary organic aerosols (SOA), but the related processes are currently not adequately represented in atmospheric chemistry models. Here we show that the absorption spectrum of pyruvic acid (PA) exhibits both an increase of the absorption intensity and a red shift of 13 nm while going from a dilute aq ...
DOI:
10.1016/j.atmosenv.2018.05.016

6. An experimental methodology to measure the reaction rate constants of processes sensitised by the triplet state of 4-carboxybenzophenone as a proxy of the triplet states of chromophoric dissolved organic matter, under steady-state irradiation conditions

Author:
Brigante, Marcello,   et al.   ; Minella, Marco; Rapa, Lorenzo; Carena, Luca; Pazzi, Marco; Maurino, Valter; Minero, Claudio; Vione, Davide;     Show all 8 Authors
Source:
Environmental science 2018 v.20 no.7 pp. 1007-1019
ISSN:
2050-7895
Subject:
dissolved organic matter; environmental science; furfuryl alcohol; irradiation; kinetics; models; phenol; photochemical reactions; singlet oxygen; sodium azide; spectroscopy
Abstract:
... By a combination of transient absorption spectroscopy and steady-state irradiation experiments, we investigated the transformation of phenol and furfuryl alcohol (FFA) sensitised by irradiated 4-carboxybenzophenone (CBBP). The latter is a reasonable proxy molecule to assess the reactivity of the excited triplet states of the chromophoric dissolved organic matter that occurs in natural waters. The ...
DOI:
10.1039/c8em00155c

7. Evidence of an Important Role of Photochemistry in the Attenuation of the Secondary Contaminant 3,4-Dichloroaniline in Paddy Water

Author:
Brigante, Marcello,   et al.   ; Carena, Luca; Proto, Mariagrazia; Minella, Marco; Ghigo, Giovanni; Giovannoli, Cristina; Mailhot, Gilles; Maurino, Valter; Minero, Claudio; Vione, Davide;     Show all 10 Authors
Source:
Environmental science & technology 2018 v.52 no.11 pp. 6334-6342
ISSN:
1520-5851
Subject:
biodegradation; carbonates; enzymatic hydrolysis; models; nitrates; paddies; photolysis; pollutants; propanil; temperate zones; water pollution
Abstract:
... The secondary pollutant 3,4-dichloroaniline (DCA) is produced by the biological degradation of several herbicides, including propanil in paddy fields. The enzymatic hydrolysis of propanil yields DCA with almost quantitative yield. DCA undergoes rather fast photodegradation in paddy water, mostly by direct photolysis. An exception might be represented by the cases (rather rare in paddies) of quite ...
DOI:
10.1021/acs.est.8b00710

8. Tryptophan and tryptophan-like substances in cloud water: Occurrence and photochemical fate

Author:
Brigante, Marcello,   et al.   ; Bianco, Angelica; Passananti, Monica; Deguillaume, Laurent; Mailhot, Gilles;     Show all 5 Authors
Source:
Atmospheric environment 2016 v.137 pp. 53-61
ISSN:
1352-2310
Subject:
acetates; atmospheric chemistry; carboxylic acids; fluorescence; formates; hydrogen peroxide; hydroxyl radicals; irradiation; photolysis; tryptophan
Abstract:
... This work investigates the occurrence and photochemical behaviour of tryptophan (TRP) in the cloud aqueous phase. The concentrations of tryptophan, TRYptophan LIke Substances (TRYLIS) and HUmic LIke Substances (HULIS) in real cloud water, collected between October 2013 and November 2014 at the top of the puy de Dôme station, were determined using the Excitation-Emission-Matrix (EEM) technique. The ...
DOI:
10.1016/j.atmosenv.2016.04.034

9. Activation of persulfate by Fe(III) species: Implications for 4-tert-butylphenol degradation

Author:
Brigante, Marcello,   et al.   ; Wu, Yanlin; Prulho, Romain; Dong, Wenbo; Hanna, Khalil; Mailhot, Gilles;     Show all 6 Authors
Source:
Journal of hazardous materials 2017 v.322 pp. 380-386
ISSN:
0304-3894
Subject:
chlorides; ferrihydrite; iron; pH; soil; technology; water pollution
Abstract:
... In this study, the activation of persulfate induced by Fe(III) species, including 5 kinds of iron oxhydroxides (IOs) and dissolved Fe³⁺ under dark condition were investigated. Ferrihydrite (FH) and akaganeite (AK) showed the highest activity in 4-tert-butylphenol (4tBP) removal. The 4tBP degradation rate constant decreased as the solution pH increased from pH 3.2 to 7.8 in FH/S2O8²⁻ system. Howeve ...
DOI:
10.1016/j.jhazmat.2016.10.013

10. Photochemical Formation of Nitrite and Nitrous Acid (HONO) upon Irradiation of Nitrophenols in Aqueous Solution and in Viscous Secondary Organic Aerosol Proxy

Author:
Brigante, Marcello,   et al.   ; Barsotti, Francesco; Bartels-Rausch, Thorsten; De Laurentiis, Elisa; Ammann, Markus; Mailhot, Gilles; Maurino, Valter; Minero, Claudio; Vione, Davide;     Show all 9 Authors
Source:
Environmental Science & Technology 2017 v.51 no.13 pp. 7486-7495
ISSN:
1520-5851
Subject:
aerosols; aqueous solutions; evaporation; gases; irradiation; nitrites; nitrous acid; p-nitrophenol; photochemistry
Abstract:
... Irradiated nitrophenols can produce nitrite and nitrous acid (HONO) in bulk aqueous solutions and in viscous aqueous films, simulating the conditions of a high-solute-strength aqueous aerosol, with comparable quantum yields in solution and viscous films (10–⁵–10–⁴ in the case of 4-nitrophenol) and overall reaction yields up to 0.3 in solution. The process is particularly important for the para-nit ...
DOI:
10.1021/acs.est.7b01397

11. Phototransformation of the Herbicide Propanil in Paddy Field Water

Author:
Brigante, Marcello,   et al.   ; Carena, Luca; Minella, Marco; Barsotti, Francesco; Milan, Marco; Ferrero, Aldo; Berto, Silvia; Minero, Claudio; Vione, Davide;     Show all 9 Authors
Source:
Environmental Science & Technology 2017 v.51 no.5 pp. 2695-2704
ISSN:
1520-5851
Subject:
bioreactors; carbonates; decontamination; denitrification; dissolved organic matter; irradiation; irrigation; nitrates; nitrites; paddies; photolysis; propanil
Abstract:
... When irradiated in paddy-field water, propanil (PRP) undergoes photodegradation by direct photolysis, by reactions with •OH and CO₃•–, and possibly also with the triplet states of chromophoric dissolved organic matter. Irradiation also inhibits the nonphotochemical (probably biological) degradation of PRP. The dark- and light-induced pathways can be easily distinguished because 3,4-dichloroaniline ...
DOI:
10.1021/acs.est.6b05053

12. Assessing the phototransformation of diclofenac, clofibric acid and naproxen in surface waters: Model predictions and comparison with field data

Author:
Brigante, Marcello,   et al.   ; Avetta, Paola; Fabbri, Debora; Minella, Marco; Maurino, Valter; Minero, Claudio; Pazzi, Marco; Vione, Davide;     Show all 8 Authors
Source:
Water research 2016 v.105 pp. 383-394
ISSN:
0043-1354
Subject:
Crustacea; algae; amides; carcinogens; clofibrate; clofibric acid; diclofenac; dissolved organic matter; freshwater; half life; humans; hydroquinone; hydroxyl radicals; metabolites; models; photolysis; prediction; surface water; toxicity
Abstract:
... Phototransformation is important for the fate in surface waters of the pharmaceuticals diclofenac (DIC) and naproxen (NAP) and for clofibric acid (CLO), a metabolite of the drug clofibrate. The goal of this paper is to provide an overview of the prevailing photochemical processes, which these compounds undergo in the different conditions found in freshwater environments. The modelled photochemical ...
DOI:
10.1016/j.watres.2016.08.058

13. Photochemical transformation of benzotriazole, relevant to sunlit surface waters: Assessing the possible role of triplet-sensitised processes

Author:
Brigante, Marcello,   et al.   ; Bianco, Angelica; Fabbri, Debora; Minella, Marco; Mailhot, Gilles; Maurino, Valter; Minero, Claudio; Vione, Davide;     Show all 8 Authors
Source:
The Science of the total environment 2016 v.566-567 pp. 712-721
ISSN:
0048-9697
Subject:
analytical methods; aniline; corrosion; detection limit; dissolved organic carbon; half life; hydroxyl radicals; hydroxylation; irradiation; pH; photolysis; surface water; triazoles; wavelengths
Abstract:
... The corrosion inhibitor 1H-benzotriazole (pKa=8.4) can exist in two different forms in natural waters, and photochemical transformation is a potentially significant attenuation pathway for both of them. Depending on conditions, the modelled half-life times range from some days/weeks to several months. In sunlit water bodies, the acidic (neutral) form would undergo direct photolysis (accounting for ...
DOI:
10.1016/j.scitotenv.2016.05.119

14. Fe(III)–EDDS complex in Fenton and photo-Fenton processes: from the radical formation to the degradation of a target compound

Author:
Brigante, Marcello,   et al.   ; Wu, Yanlin; Passananti, Monica; Dong, Wenbo; Mailhot, Gilles;     Show all 5 Authors
Source:
Environmental science and pollution research international 2014 v.21 no.21 pp. 12154-12162
ISSN:
0944-1344
Subject:
endocrine-disrupting chemicals; hydrogen peroxide; iron; oxygen; pH; photolysis; ultraviolet radiation; water treatment
Abstract:
... The present work compares the efficiency of homogenous Fenton and photo-Fenton processes in the presence of Fe(III)–EDDS complex under different experimental conditions. 4-tert-Butylphenol (4-t-BP), which is one of the endocrine disrupting chemicals, was used as a model pollutant to investigate the Fenton and photo-Fenton application. The efficiency of homogenous photo-Fenton process was significa ...
DOI:
10.1007/s11356-014-2945-1

15. Mechanistic Insights on the Photosensitized Chemistry of a Fatty Acid at the Air/Water Interface

Author:
Brigante, Marcello,   et al.   ; Tinel, Liselotte; Rossignol, Stéphanie; Bianco, Angelica; Passananti, Monica; Perrier, Sébastien; Wang, Xinming; Donaldson, D. James; George, Christian;     Show all 9 Authors
Source:
Environmental Science & Technology 2016 v.50 no.20 pp. 11041-11048
ISSN:
1520-5851
Subject:
aerosols; air; coatings; fatty acids; ionization; irradiation; liquid chromatography; mass spectrometry; oxygen; photosensitizing agents; spectrometers; surfactants
Abstract:
... Interfaces are ubiquitous in the environment and many atmospheric key processes, such as gas deposition, aerosol, and cloud formation are, at one stage or another, strongly impacted by physical and chemical processes occurring at interfaces. Here, the photoinduced chemistry of an air/water interface coated with nonanoic acid-a fatty acid surfactant we use as a proxy for chemically complex natural ...
DOI:
10.1021/acs.est.6b03165

16. Properties of the humic-like material arising from the photo-transformation of l-tyrosine

Author:
Brigante, Marcello,   et al.   ; Berto, Silvia; De Laurentiis, Elisa; Tota, Tiziana; Chiavazza, Enrico; Daniele, Pier Giuseppe; Minella, Marco; Isaia, Marco; Vione, Davide;     Show all 9 Authors
Source:
The Science of the total environment 2016 v.545-546 pp. 434-444
ISSN:
0048-9697
Subject:
absorption; aromatic compounds; dimerization; fluorescence; free radicals; humic substances; hydroxylation; mass spectrometry; models; nuclear magnetic resonance spectroscopy; photolysis; physicochemical properties; surface water; tyrosine
Abstract:
... The UVB photolysis of l-tyrosine yields species with fluorescence and absorption spectra that are very similar to those of humic substances. By potentiometric measurements, chemical modeling and the application of NMR, mass spectrometry and laser flash photolysis, it was possible to get insights into the structural and chemical properties of the compounds derived by the l-tyrosine phototransformat ...
DOI:
10.1016/j.scitotenv.2015.12.047

17. Sulfate Radical Photogeneration Using Fe-EDDS: Influence of Critical Parameters and Naturally Occurring Scavengers

Author:
Brigante, Marcello,   et al.   ; Wu, Yanlin; Bianco, Angelica; Dong, Wenbo; de Sainte-Claire, Pascal; Hanna, Khalil; Mailhot, Gilles;     Show all 7 Authors
Source:
Environmental Science & Technology 2015 v.49 no.24 pp. 14343-14349
ISSN:
1520-5851
Subject:
aquatic environment; carbonates; chlorides; chlorine; free radicals; iron; irradiation; models; pH; photolysis; pollutants; sulfates; wastewater; water pollution
Abstract:
... In this study, the activation of persulfate induced by Fe(III)-ethylenediamine-N,N′-disuccinic acid (EDDS) under dark and irradiation conditions and the reactivity of the generated sulfate radical (SO₄•–) under a wide range of experimental conditions were investigated by means of experimental kinetic analyses and modeling. The Fe(III)-EDDS induced activation of persulfate was found to be efficient ...
DOI:
10.1021/acs.est.5b03316

18. New insights into the environmental photochemistry of 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan): Reconsidering the importance of indirect photoreactions

Author:
Brigante, Marcello,   et al.   ; Bianco, Angelica; Fabbri, Debora; Minella, Marco; Mailhot, Gilles; Maurino, Valter; Minero, Claudio; Vione, Davide;     Show all 8 Authors
Source:
Water research 2015 v.72 pp. 271-280
ISSN:
0043-1354
Subject:
anti-infective agents; biodegradation; dioxins; dissolved organic carbon; phenol; photolysis; surface water
Abstract:
... Triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol) is a widely used antimicrobial agent that undergoes fairly slow biodegradation. It is often found in surface waters in both the acidic (HTric) and basic (Tric−) forms (pKa ∼8), and it can undergo direct photodegradation to produce several intermediates including a dioxin congener (2,8-dichlorodibenzodioxin, hereafter 28DCDD). The latter is formed ...
DOI:
10.1016/j.watres.2014.07.036

19. Photochemical fate and eco-genotoxicity assessment of the drug etodolac

Author:
Brigante, Marcello,   et al.   ; Passananti, Monica; Lavorgna, Margherita; Iesce, Maria Rosaria; DellaGreca, Marina; Criscuolo, Emma; Cermola, Flavio; Isidori, Marina;     Show all 8 Authors
Source:
The Science of the total environment 2015 v.518-519 pp. 258-265
ISSN:
0048-9697
Subject:
Crustacea; Rotifera; algae; aqueous solutions; direct contact; drugs; ecotoxicology; genotoxicity; invertebrates; irradiation; lamps; long term effects; mutagenesis; mutagenicity; oxygen; photolysis; solar radiation; trophic levels; ultraviolet radiation; xenon
Abstract:
... The photochemical behavior of etodolac was investigated under various irradiation conditions. Kinetic data were obtained after irradiation of 10−4M aqueous solutions by UVB, UVA and direct exposure to sunlight. The Xenon lamp irradiation was used in order to determine the photodegradation quantum yield under sun-simulated condition (ϕsun). The value was determined to be=0.10±0.01. In order to obta ...
DOI:
10.1016/j.scitotenv.2015.03.009

20. Photoenhanced transformation of nicotine in aquatic environments: Involvement of naturally occurring radical sources

Author:
Brigante, Marcello,   et al.   ; Passananti, Monica; Temussi, Fabio; Iesce, Maria Rosaria; Previtera, Lucio; Mailhot, Gilles; Vione, Davide;     Show all 7 Authors
Source:
Water research 2014 v.55 pp. 106-114
ISSN:
0043-1354
Subject:
aquatic environment; aqueous solutions; chemical structure; environmental factors; half life; high performance liquid chromatography; hydroxyl radicals; irradiation; mass spectrometry; models; nicotine; nitrates; nitrites; nitrogen content; nitrogen dioxide; organic matter; singlet oxygen; surface water
Abstract:
... This work investigated the fate of nicotine (Nico) in aqueous solution upon reaction with singlet oxygen (1O2) and hydroxyl radical (HO). The second-order rate constants of Nico with 1O2 (kNico,O21 = (3.38 ± 0.14) × 106 M−1 s−1) and HO (kNico,OH = (1.08 ± 0.10) × 109 M−1 s−1) were determined using competition kinetics. Photochemical modelling showed that the reaction of Nico with HO would prevail ...
DOI:
10.1016/j.watres.2014.02.016