Were Persulfate-Based Advanced Oxidation Processes Really Understood? Basic Concepts, Cognitive Biases, and Experimental Details

Environmental Science & Technology, Год журнала: 2024, Номер 58(24), С. 10415 - 10444

Опубликована: Июнь 7, 2024

Persulfate (PS)-based advanced oxidation processes (AOPs) for pollutant removal have attracted extensive interest, but some controversies about the identification of reactive species were usually observed. This critical review aims to comprehensively introduce basic concepts and rectify cognitive biases appeals pay more attention experimental details in PS-AOPs, so as accurately explore reaction mechanisms. The scientifically summarizes character, generation, different species. It then highlights complexities analysis electron paramagnetic resonance, uncertainties use probes scavengers, necessities determination scavenger concentration. importance choice buffer solution, operating mode, terminator, filter membrane is also emphasized. Finally, we discuss current challenges future perspectives alleviate misinterpretations toward mechanisms PS-AOPs.

Язык: Английский

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Regulating the concentration of dissolved oxygen to achieve the directional transformation of reactive oxygen species: A controllable oxidation process for ciprofloxacin degradation by calcined CuCoFe-LDH

Water Research, Год журнала: 2023, Номер 233, С. 119744 - 119744

Опубликована: Фев. 15, 2023

Язык: Английский

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Transformative Removal of Aqueous Micropollutants into Polymeric Products by Advanced Oxidation Processes

Environmental Science & Technology, Год журнала: 2024, Номер 58(11), С. 4844 - 4851

Опубликована: Фев. 22, 2024

This perspective presents the latest advancements in selective polymerization pathways advanced oxidation processes (AOPs) for removal of featured organic pollutants wastewater. In radical-based homogeneous reactions, SO4• –-based systems exhibit superior oxidative activity toward aromatics with electron-donating substituents via single electron transfer and radical adduct formation (RAF). The produced cations subsequently undergo coupling reactions to produce polymers. For •OH-based oxidation, metal ions facilitate production monomer radicals RAF. Additionally, heterogeneous catalysts can mediate both persulfate activation without generating inorganic radicals. Metal-based will a direct pathway polymerization. contrast, carbon-based induce low-molecular-weight oligomers (≤4 units) an process. comparison mineralization, remarkably reduce peroxide usage, quickly separate from aqueous phase, generate polymeric byproducts. Thus, AOP-driven hold significant promise reducing carbon emission realizing recycling water treatment processes.

Язык: Английский

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Generation and engineering applications of sulfate radicals in environmental remediation

Chemosphere, Год журнала: 2023, Номер 339, С. 139659 - 139659

Опубликована: Июль 27, 2023

Язык: Английский

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Insight into antibiotic removal by advanced oxidation processes (AOPs): Performance, mechanism, degradation pathways, and ecotoxicity assessment

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 157134 - 157134

Опубликована: Ноя. 1, 2024

Язык: Английский

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Degradation of ofloxacin by activation of persulfate with metal-N co-doped modified peanut shell biochar: The key role of cobalt doping

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 106967 - 106967

Опубликована: Янв. 11, 2025

Язык: Английский

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Heterogeneous Sono-Fenton like catalytic degradation of metronidazole by Fe3O4@HZSM-5 magnetite nanocomposite

Heliyon, Год журнала: 2023, Номер 9(6), С. e16461 - e16461

Опубликована: Май 26, 2023

In this research, Fe3O4@HZSM-5 magnetic nanocomposite was synthesized via a coprecipitation method for metronidazole (MNZ) degradation from aqueous solutions under ultrasonic irradiation which showed superb sonocatalytic activity. The magnetite characterized by using field-emission scanning electron microscope-energy dispersive X-ray Spectroscopy, (FESEM-EDS), Line Scan, Dot Mapping, diffraction (XRD), vibrating sample magnetometer (VSM), and Brunauer-Emmett-Teller (BET). To investigate the activity of nanocomposite, removal conditions were optimized evaluating influences operating parameters like dosage catalyst, reaction time, pH, concentration H2O2, MNZ concentration, pH on removal. maximum efficiency TOC at time 40 min, catalyst dose 0.4 g/L, H2O2 1 mM, initial 25 mg/L, 7 achieved 98% 81%, respectively. Additionally, in real wastewater optimal obtained 83%. results that Langmuir-Hinshelwood kinetic model KL-H = 0.40 L mg-1, KC 1.38 mg/L min) can describe process. radical scavenger tests indicated major reactive oxygen species formed hydroxyl radicals Sono-Fenton-like Evaluation reusability an 85% reduction after seven cycles. Based results, it be concluded as heterogeneous nano-catalysts to effectively degrade MNZ, observed stability recyclability demonstrated promising treatment contaminated with antibiotics.

Язык: Английский

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Insights into the well-dispersed nano-Fe3O4 catalyst supported by N-doped biochar prepared from steel pickling waste liquor for activating peroxydisulfate to degrade tetracycline

Chemical Engineering Journal, Год журнала: 2023, Номер 464, С. 142548 - 142548

Опубликована: Март 22, 2023

Язык: Английский

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Activation of sulfite by micron-scale iron-carbon composite for metronidazole degradation: Theoretical and experimental studies

Journal of Hazardous Materials, Год журнала: 2023, Номер 448, С. 130873 - 130873

Опубликована: Янв. 28, 2023

Язык: Английский

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Synergistic enhancement of redox pairs and functional groups for the removal of phenolic organic pollutants by activated PMS using silica-composited biochar: Mechanism and environmental toxicity assessment

Chemosphere, Год журнала: 2023, Номер 337, С. 139441 - 139441

Опубликована: Июль 6, 2023

Язык: Английский

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