Mineralization of the antibiotic chloramphenicol by solar photoelectro-Fenton

Garcia‐Segura, Sergi; Cavalcanti, Eliane Bezerra; Brillas, Enric

doi:10.1016/j.apcatb.2013.07.071

Cited by 115 publications

(50 citation statements)

References 43 publications

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“…1A). A similar pathway of decay was followed in both electro-Fenton (EF) and solar photo-electro-Fenton (SPEF) treatments of 245 mg L À 1 CAP (k ¼1.4 Â 10 À 3 s À 1 (R 2 ¼ 0.994) and 1.6 Â 10 À 3 s À 1 (R 2 ¼ 0.994)), respectively (Garcia-Segura et al, 2014). Both the illumination and the catalyst are necessary for effectively degrade CAP.…”

Section: Kinetic Studiesmentioning

confidence: 71%

“…The conversion of organic chlorine and nitrogen from the CAP molecule to the respective inorganic ions follows the reaction reported in Garcia-Segura et al (2014).…”

Section: Photo-oxidation By-productsmentioning

confidence: 99%

“…Since hydroxyl radicals are the main oxidant of all AOPs, the same by-products are expected in all them varying concentration and degradation progression versus time. Nine aromatic products and thirteen hydroxylated derivatives along with dichloroacetic acid were found as result of anodic oxidation electro-generated H 2 O 2 (AO-H 2 O 2 ), electro-Fenton, photo-electro Fenton and solar photoelectro-Fenton of 245 mg L À 1 CAP by Garcia-Segura et al (2014). The higher oxidation ability of AO-H 2 O 2 with boron doped diamond anode allowed the faster intermediated degradation with larger accumulation of oxalic, oxamic and formic acid which were also mineralized at long electrolysis time (360 min).…”

Section: Photo-oxidation By-productsmentioning

confidence: 99%

“…The higher oxidation ability of AO-H 2 O 2 with boron doped diamond anode allowed the faster intermediated degradation with larger accumulation of oxalic, oxamic and formic acid which were also mineralized at long electrolysis time (360 min). According to the studies of Garcia-Segura et al (2014), the following by-products were detected after 120 min of photolysis and photocatalysis: CAP (321 m/z, negative ion with z ¼1), 4-nitrobenzoic acid (166 m/z, negative ion with z ¼1) (Fig. 3b); CAP (321 m/z, negative ion with z¼ 1), 4-nitrobenzoic acid (166 m/z, negative ion with z¼ 1), dichloroacetic acid (127 m/z, negative ion with z¼ 1), 4-nitrophenol (138 m/z, negative ion with z¼ 1), at 0.2 g TiO 2 L À 1 (Fig.…”

Section: Photo-oxidation By-productsmentioning

confidence: 99%

“…Approximately 59% of the initial N of CAP (21.2 mg L À 1 ) was detected after 360 min of solar photo-electro-Fenton treatment byGarcia-Segura et al (2014).…”

mentioning

confidence: 99%

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Photocatalytic degradation of the antibiotic chloramphenicol and effluent toxicity effects

Lofrano

Libralato

Adinolfi

et al. 2016

Ecotoxicology and Environmental Safety

115

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Section: Kinetic Studiesmentioning

confidence: 71%

“…The conversion of organic chlorine and nitrogen from the CAP molecule to the respective inorganic ions follows the reaction reported in Garcia-Segura et al (2014).…”

Section: Photo-oxidation By-productsmentioning

confidence: 99%

Section: Photo-oxidation By-productsmentioning

confidence: 99%

Section: Photo-oxidation By-productsmentioning

confidence: 99%

“…Approximately 59% of the initial N of CAP (21.2 mg L À 1 ) was detected after 360 min of solar photo-electro-Fenton treatment byGarcia-Segura et al (2014).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Photocatalytic degradation of the antibiotic chloramphenicol and effluent toxicity effects

Lofrano

Libralato

Adinolfi

et al. 2016

Ecotoxicology and Environmental Safety

115

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Detection and Treatment of Persistent Pollutants in Water: General Review of Pharmaceutical Products

2022

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Environmental problems of great complexity arise from the enormous number of toxic substances that are generated by anthropogenic activities. Seemingly, society encounters new issues every day thus these problems seem to be endless. Now in the face of the COVID‐19 pandemic and the SARS‐CoV‐2 crisis, a large number of emerging treatment compounds generated by pharmaceutical companies worldwide makes future issues even more treacherous. For this reason, there is an increasing need to detect and treat emerging compounds to prevent them from becoming persistent pollutants. This review describes the advances in the use of electrochemical sensors with modified carbon‐based electrodes among other issues, to determine antibiotics, anti‐inflammatories and antidepressants levels in the environment. It further explores technologies suggested for cleaning wastewater polluted by pharmaceutical products using biological or advanced oxidation processes including photolysis, photocatalysis, microwave heating, ultrasound, Fenton, electro‐Fenton, photoelectro‐Fenton and various combined treatments.

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Electro‐Oxidation of the Pharmaceutical Furosemide: Kinetics, Mechanism, and By‐Products

Olvera‐Vargas¹,

Oturan²,

Buisson

et al. 2015

CLEAN Soil Air Water

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Furosemide is a widely prescribed diuretic whose unambiguous presence in water appointed it as an emerging pollutant. This work focuses on the electrochemical degradation of this drug in aqueous solutions by electrochemical advanced oxidation processes, electro‐Fenton and anodic oxidation, using Pt/carbon‐felt and boron doped diamond (BDD)/carbon‐felt cells with H2O2 electrogeneration. The higher oxidation power of the electro‐Fenton process using a BDD anode was demonstrated. The oxidative degradation of furosemide by electrochemically generated •OH radicals follows a pseudo‐first order kinetics. The absolute rate constant of the oxidation reaction of furosemide by •OH was determined using a competition kinetics method and found to be 3.4 × 109 M−1 s−1. The evolution of the total organic carbon removal during the treatment as a mineralization efficiency parameter was investigated. It was found that the electrochemical degradation of furosemide yields formation of aromatic by‐products which are oxidized afterwards to aliphatic carboxylic acids before their conversion to CO2 and inorganic ions (NH4+, NO3–, Cl–, and SO42–). The toxicity assessment by the Microtox® method revealed formation of oxidation reaction intermediates more toxic than the parent molecule. Nevertheless, the overall results confirm the high effectiveness of anodic oxidation and electro‐Fenton processes for the removal of furosemide and its by‐products from aqueous media.

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Mineralization of the antibiotic chloramphenicol by solar photoelectro-Fenton

Cited by 115 publications

References 43 publications

Photocatalytic degradation of the antibiotic chloramphenicol and effluent toxicity effects

Photocatalytic degradation of the antibiotic chloramphenicol and effluent toxicity effects

Detection and Treatment of Persistent Pollutants in Water: General Review of Pharmaceutical Products

Electro‐Oxidation of the Pharmaceutical Furosemide: Kinetics, Mechanism, and By‐Products

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