Degradation of sulfamethoxazole by medium pressure UV and oxidants: Peroxymonosulfate, persulfate, and hydrogen peroxide

Ao, Xiuwei; Liu, Wenjun

doi:10.1016/j.cej.2016.12.089

Cited by 327 publications

(53 citation statements)

References 67 publications

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“…Similar results on the high performance of UV irradiation in presence or absence of sulfate radicals have been reported, as in the degradation of chloramphenicol (Tan et al, ), erythromycin (Michael‐Kordatou et al, ), and sulfamethoxazole (Ao & Liu, ).…”

Section: Resultssupporting

confidence: 74%

“…Figure . shows that under UV/SPS, the degradation rate of SQ‐Na increased from 28% to 100% with decreasing pH from 9 to 3 within 300 min of reaction, meaning that the amount of radicals and the composition of active species during UV‐C irradiation is strongly related to the pH of the medium, as reported by several studies (Ao & Liu, ; Cui et al, ; Ismail, Ferronatoa, Fine, Jaber, & Chovelon, ).…”

Section: Resultssupporting

confidence: 56%

“…In the recent years, a great scientific interest is being placed on the sulfate radical‐based AOPs due to their high efficiency in degrading a wide range of recalcitrant microcontaminants in aqueous matrices, including pharmaceuticals (Guo, Ke, Gao, Liu, & Cheng, ; Michael‐Kordatou et al, ; Tan et al, ). Persulfate radicals can be produced by the activation of persulfate, peroxymonosulfate, potassium persulfate, and ammonium persulfate anion (Ao & Liu, ) by various methods, such as heat (Johnson, Tratnyek, & Johnson, ), ultrasonic (Hori, Nagano, Murayama, Koike, & Kutsuna, ), and UV (Mahdi‐Ahmed & Chiron, ).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies established that the UV/sulfate radicals were more efficient than UV/H 2 O 2 systems for antibiotic degradation (Ao & Liu, ; Zhang, Yang, & Wang, ). The sulfate radical (

{SO}_{4}^{- \cdot}

) is considered as strong oxidant for its high standard redox potential (2.5–3.1 V), which is slightly higher to the hydroxyl radical (1.8–2.7 V) (Buxton, Bydder, & Arthur Salmon, ).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Boudriche

Safaei

Ramasamy

et al. 2019

Water Environment Research

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This study evaluates the efficiency of sulfate radicals used in advanced oxidation process in water treatment. The targeted pollutant is an antibiotic, sulfaquinoxaline (SQ-Na) sodium, widely used in the veterinary field. The results show a degradation of SQ-Na until 90% after 300 min of irradiation at optimal sodium persulfate (SPS) concentration (200 mg/L). Degradation of the antibiotic obeys a pseudo-first-order kinetics when the concentration of sulfate radicals ranging from 0 to 240 mg/L. The decomposition of SQ-Na via the UV/SPS method is favored significantly under acidic conditions but becomes slow at neutral pH and almost inhibited under alkaline conditions. The contribution of the sulfate radicals alone and of both radicals hydroxyl and sulfate on the SQ-Na degradation is evaluated at 69% and 80%, respectively. Toxicity tests with Sinapis alba and Daphnia magna on treated samples, before and after irradiation, indicate the formation of new by-products more toxic during the treatment process. @ 2019 Water Environment Federation • Practitioner points• SQ-Na was significantly degraded (90%) under UV/SPS system. • SQ-Na decay exhibited a pseudo-first-order kinetics. • SQ-Na was completely degraded via UV/SPS process under acidic conditions. • The shoot growth appears to be more sensitive to oxidation by-products toxicity than root growth. • Ineffectiveness in eliminating the ecotoxicity.

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Section: Resultssupporting

confidence: 74%

Section: Resultssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

“…Several studies established that the UV/sulfate radicals were more efficient than UV/H 2 O 2 systems for antibiotic degradation (Ao & Liu, ; Zhang, Yang, & Wang, ). The sulfate radical (

{SO}_{4}^{- \cdot}

) is considered as strong oxidant for its high standard redox potential (2.5–3.1 V), which is slightly higher to the hydroxyl radical (1.8–2.7 V) (Buxton, Bydder, & Arthur Salmon, ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Boudriche

Safaei

Ramasamy

et al. 2019

Water Environment Research

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“…H 2 O can also be oxidized to •OH by HSO 5 − at a moderate rate (equation ). At pH 11, the reaction between hydroxide ions and sulfate radicals becomes significant, which leads the hydroxyl radicals becoming the predominant species . It may be deduced that the hydroxyl radicals showing a lower pirimicarb removal rate at pH 11 was probably due to their different redox potential at different pH values.…”

Section: Resultsmentioning

confidence: 99%

Accelerated ZnMoO₄ photocatalytic degradation of pirimicarb under UV light mediated by peroxymonosulfate

Chen

Fan

Shaya

et al. 2019

Applied Organom Chemis

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This paper reports the optimized synthesis of zinc molybdates by the hydrothermal method and the combination of ZnMoO4 and peroxymonosulfate (PMS) under UV irradiation for the degradation of pirimicarb. The as‐prepared ZnMoO4 photocatalyst was characterized using X‐ray diffraction, scanning electron microscopy, X‐ray photoelectron spectroscopy and UV–visible diffuse reflectance spectroscopy. The effects of operational parameters in the ZnMoO4/PMS/UV system were evaluated and the results indicated the highest performance is achieved with pH = 9.0, 1 mM PMS and 1 g l−1 ZnMoO4. The degradation efficiency of pirimicarb was 98% after 3 h in the photocatalytic process. A photodegradation mechanism is proposed based on scavenger and electron spin resonance studies to decide the main active species and by using chromatography–mass spectrometry to identify the major intermediates. Pirimicarb degradation is found to be mainly driven by holes and •O2− radicals, with the contribution of •OH and SO4•− radicals enhancing the process in the tested catalytic system. The mechanism is proposed involving two routes, dealkylation and decarbamoylation. Lastly, the zinc molybdate photocatalyst is shown to be stable, reusable and efficient in the removal of pirimicarb from real water samples in the presence of PMS, demonstrating potential application in the treatment of contaminated and/or environmental water.

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Degradation of Lignin Pollutants by Persulfate Activated with a Graphene Oxide Loaded Cu₂(OH)₃NO₃ Composite

Peng

Wang

et al. 2023

ChemistrySelect

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Graphene oxide (GO)‐Cu2(OH)3NO3 composite was prepared by a thermal calcination process and evaluated as an effective heterogeneous catalytic material. The composite displayed prominent activated performance to persulfate, which was influenced by preparation condition and the reaction parameters in catalytic system. Under optimal reactive conditions, the GO‐Cu2(OH)3NO3 composite yielded rapid degradation of ferulic acid, which the corresponding apparent rate constant was 1.12×10−1 min−1. Catalytic mechanism analysis showed that the main oxygen species were ⋅SO4− and ⋅OH. Among them, ⋅OH made the main contribution in the catalytic system. The analysis of degradation intermediates of ferulic acid showed that the compound could be mineralized to small molecules. The remarkable enhanced heterogeneous catalytic performance of GO‐Cu2(OH)3NO3 was due to a larger specific surface area, high adsorption capacity and a high mass transfer efficiency of oxidizing radicals in the reactive system.

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Degradation of sulfamethoxazole by medium pressure UV and oxidants: Peroxymonosulfate, persulfate, and hydrogen peroxide

Cited by 327 publications

References 67 publications

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Accelerated ZnMoO₄ photocatalytic degradation of pirimicarb under UV light mediated by peroxymonosulfate

Degradation of Lignin Pollutants by Persulfate Activated with a Graphene Oxide Loaded Cu₂(OH)₃NO₃ Composite

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Degradation of sulfamethoxazole by medium pressure UV and oxidants: Peroxymonosulfate, persulfate, and hydrogen peroxide

Cited by 327 publications

References 67 publications

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Sulfaquinoxaline oxidation by UV‐C activated sodium persulfate: Degradation kinetics and toxicological evaluation

Accelerated ZnMoO4 photocatalytic degradation of pirimicarb under UV light mediated by peroxymonosulfate

Degradation of Lignin Pollutants by Persulfate Activated with a Graphene Oxide Loaded Cu2(OH)3NO3 Composite

Contact Info

Product

Resources

About

Accelerated ZnMoO₄ photocatalytic degradation of pirimicarb under UV light mediated by peroxymonosulfate

Degradation of Lignin Pollutants by Persulfate Activated with a Graphene Oxide Loaded Cu₂(OH)₃NO₃ Composite