Degradation of oxytetracycline and doxycycline by ozonation: Degradation pathways and toxicity assessment

Park, Jeong-Ann; Pineda, Marco; Peyot, Marie‐Line; Yargeau, Viviane

doi:10.1016/j.scitotenv.2022.159076

Cited by 41 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the LC-MS analysis, quenching test, EPR result, and previous literature, − a plausible mechanism of the Co 3 O 4 -c nanocomposite-catalyzed degradation of OTC via PMS activation is shown in Figure . First, OTC and PMS molecules had been attached and adsorbed onto the Co 3 O 4 -c surface.…”

Section: Resultsmentioning

confidence: 94%

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Huang

Jin

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Despite significant progress being made in the development of cobaltosic oxide or modified cobaltosic oxide nanomaterials in the degradation of organic pollutants, to our knowledge, there are only very few available reports on the crystal facet effect of Co 3 O 4 with different morphologies on peroxymonosulfate activation for oxytetracycline degradation. Herein, we first reported the synthesis of three kinds of Co 3 O 4 nanocomposites with various morphologies, including nanocubes (Co 3 O 4 -c), octahedron (Co 3 O 4 -o), and truncated octahedron (Co 3 O 4 -t), for activating peroxymonosulfate (PMS) in the degradation of oxytetracycline at 30 °C. The detailed physical characterizations illustrated that Co 3 O 4 -c, Co 3 O 4 -o, and Co 3 O 4 -t possessed a uniform morphology of nanocubes, octahedron, and truncated octahedron, with six {100} exposing facets, six {111} exposing facets, and a mixture of eight {111} and six {100} exposing facets, respectively. In particular, the optimal Co 3 O 4 nanocubes (Co 3 O 4 -c) presented the highest catalytic reactivity in the activation of PMS for OTC degradation, with 82.8% degradation efficiency and 46.4% mineralization rate at 30 °C. The DFT results exhibited that the ΔE total of PMS on Co 3 O 4 {100} exposing facets (−23.7 eV) was much lower than that of PMS on Co 3 O 4 exposing {111} facets (−17.2 eV), indicating that PMS activation was more likely to occur at the Co 3 O 4 {100} exposing facets, which was in good accordance with the above experimental conclusion. Overall, the explanation of the crystal facet effects on PMS activation proposes a research orientation for the synthesis of crystal engineering of heterogeneous catalysts on wastewater treatment.

show abstract

Section: Resultsmentioning

confidence: 94%

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Huang

Jin

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…One study showed that that the mineralization efficiency of pristine Ag/AgCl and composites ACM-5 reached 18.97% and 46.65%, respectively, within 60 min [26]. Another study found that the transformation products of DOX with a small molecular weight were not observed even after 60 min of ozonation, suggesting that mineralization might be difficult [30]. Additionally, another study did not observe DOX degradation by peroxydisulfate oxidation [31].…”

Section: Mineralizationmentioning

confidence: 99%

“…The degradation products detected at each reaction period are shown in Table S3 and Figure S8. Referring to the measured m/z value, the previous literature and considering the molecular structure of the target pollutants with the oxidation characteristics of Fe(VI) [30,31,38,39], the possible degradation pathway of DOX is proposed in Figure 11. The molecular structure of DOX contains a stable naphthol ring, so when Fe(VI) oxidizes DOX it predominantly attacks the hydroxyl, amino and methyl groups in the DOX structure.…”

Section: Plausible Dox Degradation Pathwaymentioning

confidence: 99%

Enhanced Removal of Doxycycline by Simultaneous Potassium Ferrate(VI) and Montmorillonite: Reaction Mechanism and Synergistic Effect

Zhang

Wang

Shu

et al. 2023

Water

View full text Add to dashboard Cite

Doxycycline (DOX), a typical antibiotic, is harmful to aquatic ecosystems and human health. This study presents DOX removal by potassium ferrate (Fe(VI)) and montmorillonite and investigates the effect of Fe(VI) dosage, reaction time, initial pH value, montmorillonite dosage, adsorption pH, time and temperature on DOX removal. The results show that DOX removal increases when increasing the Fe(VI) dosage, with the optimal condition for DOX removal (~97%) by Fe(VI) observed under a molar ratio ([Fe(VI)]:[DOX]) of 30:1 at pH 7. The reaction of DOX with Fe(VI) obeyed second-order kinetics with a rate constant of 10.7 ± 0.45 M−1 s−1 at pH 7. The limited promotion (~4%) of DOX adsorption by montmorillonite was observed when the temperature increased and the pH decreased. Moreover, the synergetic effect of Fe(VI) and montmorillonite on DOX removal was obtained when comparing the various types of dosing sequences (Fe(VI) oxidation first and then adsorption; adsorption first and then Fe(VI) oxidation; simultaneous oxidation and adsorption). The best synergistic effect of DOX removal (97%) was observed under the simultaneous addition of Fe(VI) and montmorillonite, maintaining the Fe(VI) dosage (from 30:1 to 5:1). Five intermediates were detected during DOX degradation, and a plausible DOX degradation pathway was proposed.

show abstract

“…One promising approach is the use of advanced oxidation processes (AOPs), which are based on the production of hydroxyl radicals, as a strong oxidizing agents, to degrade organic pollutants, namely, ozonation [14], photocatalysis [15], electro-Fenton oxidation [16], and Fenton and photo-Fenton oxidation [17]. Among these processes, the photo-Fenton process has gained a lot of attention as an alternative for degrading recalcitrant pollutants due to its high efficiency, operational easiness, and potential to be powered by solar radiation [3].…”

Section: Introductionmentioning

confidence: 99%

“…11, x FOR PEER REVIEW 10 of 15breakdown of the organic molecule by the high production of hydroxyl radicals resulting from the Fenton reaction in the first place, as shown in Equation (1), then the cleavage of H2O2, as shown in Equation(13), and by the reduction of Fe 3+ with H2O2 under a light source, as shown in Equation(14).…”

mentioning

confidence: 99%

Doxycycline Removal by Solar Photo-Fenton on a Pilot-Scale Composite Parabolic Collector (CPC) Reactor

Bensaibi,

Chabani,

Bouafia

et al. 2023

Processes

View full text Add to dashboard Cite

In this study, the solar photo-Fenton (SPF) process was investigated for the degradation of doxycycline (DOX) using a solar compound parabolic collector (CPC) reactor and a borosilicate serpentine tube with an irradiated volume of 1.8 L. The influence of the operating parameters, such as H2O2, Fe2+ dosage, and DOX concentration, was investigated. The optimum H2O2, Fe2+ dosage, and DOX concentration were found to be 4, 0.1, and 0.06 mM, respectively. The results of photo-Fenton experiments fitted the pseudo-first-order kinetic equation (R2 = 0.99). The efficiency of the treatment under optimized conditions was analyzed by an HPLC analysis of the samples, chemical oxygen demand (COD), and total organic carbon (TOC). The results obtained showed that the solar photo-Fenton process achieved a DOX degradation of 95.07%, a COD elimination of 81.43%, and a TOC elimination of 73.05%. The phytotoxicity tests revealed a 73.32% decrease in the germination index of watercress seeds, demonstrating that the SPF process minimizes the toxicity of the chemical and did not have any negative impact on plant growth. Overall, the results of this study suggest that SPF is a promising technology for the removal of doxycycline from wastewater.

show abstract

Degradation of oxytetracycline and doxycycline by ozonation: Degradation pathways and toxicity assessment

Cited by 41 publications

References 38 publications

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Enhanced Removal of Doxycycline by Simultaneous Potassium Ferrate(VI) and Montmorillonite: Reaction Mechanism and Synergistic Effect

Doxycycline Removal by Solar Photo-Fenton on a Pilot-Scale Composite Parabolic Collector (CPC) Reactor

Contact Info

Product

Resources

About

Degradation of oxytetracycline and doxycycline by ozonation: Degradation pathways and toxicity assessment

Cited by 41 publications

References 38 publications

Co3O4 Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co3O4 Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Enhanced Removal of Doxycycline by Simultaneous Potassium Ferrate(VI) and Montmorillonite: Reaction Mechanism and Synergistic Effect

Doxycycline Removal by Solar Photo-Fenton on a Pilot-Scale Composite Parabolic Collector (CPC) Reactor

Contact Info

Product

Resources

About

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation