Electro-oxidation of Ofloxacin antibiotic by dimensionally stable Ti/RuO2 anode: Evaluation and mechanistic approach

Kaur, Rashpinder; Kushwaha, Jai Prakash; Singh, Neetu

doi:10.1016/j.chemosphere.2017.11.065

Cited by 106 publications

(23 citation statements)

References 49 publications

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“…65,[69][70][71] Yang et al 65 showed high capacity toward the generation of active oxidants such as chlorine, ozone, and free radicals. 88 Kaur and co-authors 86…”

Section: Sno 2 -Based Catalystsmentioning

confidence: 99%

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Chen

Liu

Wei

et al. 2019

Environ. Sci.: Nano

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“…65,[69][70][71] Yang et al 65 showed high capacity toward the generation of active oxidants such as chlorine, ozone, and free radicals. 88 Kaur and co-authors 86…”

Section: Sno 2 -Based Catalystsmentioning

confidence: 99%

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Chen

Liu

Wei

et al. 2019

Environ. Sci.: Nano

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“…Additionally, indirect oxidation occurs in the presence of chlorides and the related hydrolyzed oxidants change in type and stability due to the pH and concentration of chloride. [ 18 ] It is reported that Cl 2 at pH < 3, HOCl for pH < 5, and OCl −− for pH > 9. [ 30 ] H 2 O 2 and HO 2 are other low oxidants mostly found at alkaline pH.…”

Section: Resultsmentioning

confidence: 99%

“…[ 15 ] The main advantage of the electrochemical processes are, in general, moderate or low cost, simple intervention of the reaction rate, facility of automation, [ 16 ] the safety of the process, [ 17 ] and the low generation of waste being, thus, an environmentally friendly process. [ 18,19 ] The electrochemical process is widely applied for the treatment of real and synthetic wastewaters. For instance, Ghanbari et al.…”

Section: Introductionmentioning

confidence: 99%

Removal of Selected Micropollutants from Synthetic Wastewater by Electrooxidation Using Oxidized Titanium and Graphite Electrodes

Turan

Çağlak

Bakırdere

et al. 2020

CLEAN Soil Air Water

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Micropollutants cover a variety of compounds that mainly originate from the pharmaceutical and agricultural sectors. Even at trace concentrations, the discharge of micropollutants into water bodies pose a serious threat to the environment and human health. Their removal from wastewaters at treatment plants before their discharge into the environment has become one of the leading topics of research. Physical, chemical, and biological treatment methods have been listed in the literature for efficient removal of a variety of pollutants. In this study, seven micropollutants, namely 4‐tert‐octylphenol, atrazine, 2,4,6‐trichlorophenol, fluoxetine, estrone, penconazole, and di‐n‐octyl phthalate, are spiked into municipal simulated synthetic wastewater and treated by a laboratory‐scale electrooxidation (EO) system using oxidized titanium and graphite electrode as anode and cathode, respectively. Sensitive determination of the selected micropollutants by gas chromatography–mass spectrometry (GC‐MS) before and after treatment is performed after their pre‐concentration using an eco‐friendly switchable solvent liquid‐phase microextraction method (SSLPME). The pH value, applied current, and reaction period are optimized to enhance the removal efficiency of micropollutants. Results show that the highest removal efficiency of all micropollutants is obtained at pH 3, 20 min reaction period, and 3 A applied current. The operational costs are also investigated in this study.

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“…When i value increased from 10 to 20 mA cm À2 , the removal ratio of CAP increased from 39.98% to 100%. With the increase of applied current, the number of oxidant species (chemisorbed and physisorbed •OH) produced on the surface of the anode increased significantly, which improved the removal ratio of CAP (Rubí-Juárez et al 2016; Kaur et al 2018). When i value increased from 20 to 30 mA cm À2 , the removal ratio decreased from 100% to 81.19%.…”

Section: Effect Of Current Densitymentioning

confidence: 99%

Electrochemical degradation of chloramphenicol using Ti-based SnO2–Sb–Ni electrode

Dan

Zhang

Gao

et al. 2021

Water Science and Technology

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Antibiotic residues may be very harmful in aquatic environments, because of limited treatment efficiency of traditional treatment methods. An electrochemical system with Ti-based SnO2-Sb-Ni anode was developed to degrade a typical antibiotic chloramphenicol (CAP) in water. The electrode was prepared by sol-gel method. The performance of electrode materials, impact factors and dynamic characteristics were evaluated. The Ti-based SnO2-Sb-Ni electrode was compact and uniform by the characterization of SEM and XRD. The electrocatalytic oxidation of CAP was carried out in a single-chamber reactor by using Ti-based SnO2-Sb-Ni electrode. For 100 mg L−1 CAP, the CAP removal ratio of 100% and the TOC removal ratio of 60% were obtained at the current density of 20 mA cm−2 and in neutral electrolyte at 300 min. The kinetic investigation has shown that the electro-oxidation of CAP on Ti-based SnO2-Sb-Ni electrode displayed pseudo first-order kinetic model. Free radical quenching experiments presented that the oxidation of CAP on Ti-based SnO2-Sb-Ni electrode resulted from the synergistic effect of direct oxidation and indirect oxidation (·OH and ·SO4−). Doping Ni on the Ti/SnO2-Sb electrode for CAP degradation was presented in this paper, showing its great application potential in the area of antibiotic and halogenated organic pollutants degradation.

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Electro-oxidation of Ofloxacin antibiotic by dimensionally stable Ti/RuO2 anode: Evaluation and mechanistic approach

Cited by 106 publications

References 49 publications

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Removal of Selected Micropollutants from Synthetic Wastewater by Electrooxidation Using Oxidized Titanium and Graphite Electrodes

Electrochemical degradation of chloramphenicol using Ti-based SnO2–Sb–Ni electrode

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