Degradation of ofloxacin by potassium ferrate: kinetics and degradation pathways

Chen, Yanghan; Jin, Qiuye; Tang, Zhaomin

doi:10.1007/s11356-022-18949-x

Cited by 12 publications

(3 citation statements)

References 53 publications

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“…Existing OFX degradation methods primarily include ferrate catalytic degradation [4], photocatalytic degradation [5], electro-Fenton degradation [6], electrocatalytic degradation [7], etc. Although these methods can degrade OFX to a certain extent, there are many problems, such as secondary pollution caused by metal ions, the low light energy utilization efficiency of photocatalysis, and high pH requirements, so it is still urgent to explore new methods for OFX degradation.…”

Section: Introductionmentioning

confidence: 99%

ZnO Promoted Persulfate Activation in Discharge Plasma System for Ofloxacin Degradation

Jiang

Huang

et al. 2023

Catalysts

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This paper aims to investigate the promotion of persulfate (PS) activation by ZnO in discharge plasma systems for the degradation of ofloxacin (OFX). Scanning electron microscopy and transmission electron microscopy showed that ZnO nanoparticles were successfully prepared by a hydrothermal method. With an increase in the PS dosage, the removal efficiency of OFX first increased and then decreased. With an increase in the ZnO dosage, the removal efficiency of OFX showed a similar trend. Under the optimum 595 mg/L PS dosage and 295 mg/L ZnO dosage, the removal efficiency of OFX by plasma, plasma/ZnO, and plasma/ZnO/PS systems reached 53.6%, 82.8%, and 98.9%, respectively. Increasing the input power was beneficial to the degradation of OFX. ESR results showed that the addition of ZnO could further stimulate PS to produce more ·OH and ·SO4− than that of plasma alone. The capture agent experiment proved that ·OH, ·SO4−, ·O2−, and 1O2 all participated in the degradation of OFX. A total organic carbon (TOC) removal of 49.6% was obtained in the plasma/ZnO/PS system. Based on liquid chromatography-mass spectrometry (LC-MS) and the Toxicity Estimation Software Tool (TEST), degradation pathways and toxicity were analyzed. Compared to other technologies, it can be concluded that the plasma/ZnO/PS system is a promising technology for pollutant remediation.

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Section: Introductionmentioning

confidence: 99%

ZnO Promoted Persulfate Activation in Discharge Plasma System for Ofloxacin Degradation

Jiang

Huang

et al. 2023

Catalysts

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“…Ferrate(VI) is a very strong oxidant with a high redox potential of 2.2V, which is compatible with ozone (2.0 V) [26] and environmentally friendly [27]. Ferrates can produce hydroxyl radical groups (•OH) in an aqueous environment which can attack the quinolone groups of some antibiotics [28], so they also have a good potential in degrading CIP antibiotics.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies related to antibiotic degradation such as ofloxacin [28], sulfamethoxazole [29], levofloxacin [30] with Fe (VI) have been successfully carried out. Feng et al [31] have degraded the antibiotics enrofloxacin, norfloxacin, ofloxacin, and marbofloxacin with Fe (VI) from FeCl3 in NaOCl.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Ciprofloxacin (CIP) Antibiotic Waste using The Advanced Oxidation Process (AOP) Method with Ferrate (VI) from Extreme Base Electrosynthesis

2023

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Ciprofloxacin (CIP) antibiotic liquid waste is the most common waste found in hospital discharge waters. The accumulation of CIP can increase mutation, microbial resistance, and toxicity in the environment due to its low biodegradability and longevity in waters. Thus, methods for eliminating CIP are important. The Advanced Oxidation Process (AOP) method with ferrate (VI) has good redox potential in water disinfection, and degradation of organic and inorganic pollutants. Therefore, this study aims to degrade CIP waste with ferrate (VI). The ferrate (VI) used was synthesized from the electrolysis of transformer scrap metal plates under extremely alkaline conditions. The success of the synthesis was proven by the presence of FeO(OH) groups characterized using FTIR, XRF, and XRD. Then, the effect of time, pH, and CIP degradation was studied. The results showed that the maximum performance was obtained at pH 7 and 120 min with the addition of 1.1 mg ferrate at initial CIP concentration of 30 mg/L. The concentration of CIP decreased with increasing treatment time which was confirmed by UV-Vis Spectrophotometer. This condition is able to degrade 86.7 % of CIP. In addition, the LC-MS results show that degradation occurs due to a reaction between HFeO4-/H2FeO4 and the active site of piperazine ring antibiotics. This shows that Ferrate has a promising potential to reduce ciprofloxacin antibiotic pollution from hospital wastewater for a better environment. HIGHLIGHTS Ciprofloxacin (CIP) antibiotic liquid waste is the most common waste found in hospital discharge waters. It can cause mutation, microbial resistance, and toxicity in the environment due to its low biodegradability and longevity in waters The Advanced Oxidation Process (AOP) method with ferrate (VI) has good redox potential in water disinfection, and degradation of organic and inorganic pollutants including antibiotic liquid waste Ferrate was able to degrade 86.7 % of ciprofloxacin antibiotic pollution from hospital wastewater through a reaction between HFeO4-/H2FeO4 and the active site of piperazine ring antibiotics GRAPHICAL ABSTRACT

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Multifunctional CuS-based micro-flower loaded with carbon dots/laccase for effectively detection and removal of catechol

Zhou,

Wang,

Cao

2024

Journal of Cleaner Production

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Degradation of ofloxacin by potassium ferrate: kinetics and degradation pathways

Cited by 12 publications

References 53 publications

ZnO Promoted Persulfate Activation in Discharge Plasma System for Ofloxacin Degradation

ZnO Promoted Persulfate Activation in Discharge Plasma System for Ofloxacin Degradation

Degradation of Ciprofloxacin (CIP) Antibiotic Waste using The Advanced Oxidation Process (AOP) Method with Ferrate (VI) from Extreme Base Electrosynthesis

Multifunctional CuS-based micro-flower loaded with carbon dots/laccase for effectively detection and removal of catechol

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