An electrodeless atmospheric microwave plasma jet for efficient degradation of antibiotic norfloxacin

Li, Xue; Zhao, Chaoxia; Mo, Qi; Zhou, Yanping

doi:10.1016/j.jenvman.2021.112729

Cited by 12 publications

(4 citation statements)

References 77 publications

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“…The initial pH value of the processed water (liquid) can affect the type and quantity of the produced reactive species. Antibiotic norfloxacin degraded more and with lower exposure time to microwave plasma when the pH of the wastewater was 4 compared to the initial pH of 2, 7, and 11 [152].…”

Section: Plasma Activated Water (Paw)mentioning

confidence: 94%

Potential of Microwave Heating and Plasma for Biosecurity Applications

Taheri

McFarlane²,

Mattner³

et al. 2022

Thermo

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This review explores the use of microwave heating and microwave-generated plasma for biosecurity applications. Microwave heating has been shown to rapidly heat and kill a wide range of pests and pathogens. Examples of microwave thermal disinfestation of soils, grains, hay, and timber are presented and discussed. Microwave energy can also ionize various gasses, including air, to create plasma. Plasmas are described by many characteristics, such as temperature, degree of ionization, and density. In the “after glow” (cold plasma) of a plasma discharge, there are sufficient charged particles and excited atoms to generate elevated UV levels and ionize the surfaces of objects. Examples of cold plasma and plasma-activated water disinfestation of grains and other commodities are also presented and discussed. Brief comments on the scale-up of this technology have also been presented.

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Section: Plasma Activated Water (Paw)mentioning

confidence: 94%

Potential of Microwave Heating and Plasma for Biosecurity Applications

Taheri

McFarlane²,

Mattner³

et al. 2022

Thermo

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show abstract

“…The rapid urbanization and population boom all over the world substantially increased wastewater production throughout the world. Among them, pharmaceutical waste in wastewater even in small concentrations can cause hazards to aquatic life (plants, animals, and micro-organisms) and humans (1)(2)(3)(4)(5)(6). Moreover, the degradation of pharmaceutical waste using conventional methods such as biological and chemical treatment is very difficult (2).…”

Section: Introductionmentioning

confidence: 99%

Penicillin Antibiotic (Ampicillin and Cloxacillin) Degradation Using Non-Thermal Pencil Plasma Jet

Rathore

2023

Preprint

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In the present work an antibiotic drug degradation efficacy of a non-thermal pencil plasma jet in artificial wastewater. Air is used as a plasma-forming gas. The air plasma is produced in a cylindrical co-axial assembly of electrodes powered by a 50 Hz High-voltage power supply. The electrical characterization of plasma is performed and the generated plasma species/radicals are identified using optical emission spectroscopy. The degradation of antibiotics in solution after plasma treatment is analyzed using high performance liquid chromatography with photodiode array detector (HPLC-PDA). In addition, total organic carbon (TOC), and chemical oxygen demand (COD) is also determined. The HPLC-PDA results reveal that plasma degradation of antibiotics solution followed first-order degradation kinetics with a rate constant of 0.158 min-1 (ampicillin) and 0.366 min-1 (Cloxacillin). Furthermore, the reduction in TOC and COD supported the degradation of antibiotics using plasma jet. It has been observed the plasma 9-minute gives 76.10% and 99.99% degradation in ampicillin and cloxacillin solution respectively. The change in physicochemical properties and various reactive species formed due to which degradation of antibiotics solution take place are measured. Finally, the toxicity of plasma degraded antibiotic solutions are studied on freshwater chlorella algae species. The results reveal that plasma degraded antibiotics solutions are non-toxic toward freshwater algae. The non-thermal plasma jet could be a potential eco-friendly alternative for the degradation of various antibiotic drugs present in wastewater.

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“…It is applied to pharmaceuticals industry extensively. Additionally, due to the stable chemical structures, norfloxacin in the environment could not be effectively eliminated or degraded by traditional treatment processes, such as adsorption, biodegradation, , sludge digestion, and photocatalytic degradation. , It has been revealed that antibiotic residues in water could bring about the mutation of antibiotic-resistant bacteria, threatening the aquatic ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Norfloxacin Degradation by Persulfate Activated with Cu₂O@WO₃ Composites: Efficiency, Stability, Mechanism, and Degradation Pathway

Cai

et al. 2022

Ind. Eng. Chem. Res.

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Tungsten trioxide and cuprous oxide composites were successfully prepared by the solvothermal and coprecipitation method. The obtained composites were comprehensively characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), Raman, and PL spectroscopy. The Cu2O@WO3/PS system was developed to degrade norfloxacin (NOR) in an aqueous solution. The photodegradation experiments and electrochemical characterization (EIS and photocurrent curves) showed that Cu2O@WO3(2–1) exhibited optimal photocatalytic activity under visible light. Furthermore, the sulfate radical was corroborated to play a predominant role in the photodegradation process, and the possible free radical formation mechanism was put forward. Density functional theory (DFT) calculation and LC-MS were utilized to investigate the intermediates during NOR degradation, and three possible degradation pathways were elucidated. Ecotoxicity analysis by TEST showed that the toxicity of these intermediates was generally weaker than parent NOR. Moreover, the synthetic sample was authenticated to possess good stability and repeatability. This work provided the guidance for available and applicable utilization of persulfate photocatalytic activation technology in pharmaceutical wastewater purification.

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An electrodeless atmospheric microwave plasma jet for efficient degradation of antibiotic norfloxacin

Cited by 12 publications

References 77 publications

Potential of Microwave Heating and Plasma for Biosecurity Applications

Potential of Microwave Heating and Plasma for Biosecurity Applications

Penicillin Antibiotic (Ampicillin and Cloxacillin) Degradation Using Non-Thermal Pencil Plasma Jet

Norfloxacin Degradation by Persulfate Activated with Cu₂O@WO₃ Composites: Efficiency, Stability, Mechanism, and Degradation Pathway

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An electrodeless atmospheric microwave plasma jet for efficient degradation of antibiotic norfloxacin

Cited by 12 publications

References 77 publications

Potential of Microwave Heating and Plasma for Biosecurity Applications

Potential of Microwave Heating and Plasma for Biosecurity Applications

Penicillin Antibiotic (Ampicillin and Cloxacillin) Degradation Using Non-Thermal Pencil Plasma Jet

Norfloxacin Degradation by Persulfate Activated with Cu2O@WO3 Composites: Efficiency, Stability, Mechanism, and Degradation Pathway

Contact Info

Product

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Norfloxacin Degradation by Persulfate Activated with Cu₂O@WO₃ Composites: Efficiency, Stability, Mechanism, and Degradation Pathway