Plasma-catalytic degradation of ciprofloxacin in aqueous solution over different MnO2 nanocrystals in a dielectric barrier discharge system

Cheng, Jian; Wang, Doudou; Wang, Baohua; Han, Ning; Zhang, Ying; Li, Yuchao; An, Jing; Gao, Peiling

doi:10.1016/j.chemosphere.2020.126595

Cited by 56 publications

(8 citation statements)

References 45 publications

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“…The effect of the oxide crystal phase on the degradation activity of antibiotics in wastewater was checked for -MnO2, -MnO2 and -MnO2 catalysts for ciprofloxacin. 323 Higher levels of Mn 3+ were observed for -MnO2 probably due to an enhanced population of defects prone to interact with the species produced by plasma irradiation. The combination of DBD with α-MnO2 showed the highest ciprofloxacin degradation efficiency (ca 93%) Besides the crystal phase, the process is influenced by the peak voltage, air flow rate, concentration and pH.…”

Section: Decontamination Of Waters Polluted With Pharmaceuticals By P...mentioning

confidence: 96%

“…The effect of the oxide crystal phase on the degradation activity of antibiotics in wastewater was checked for α-MnO 2 , β-MnO 2 , and γ-MnO 2 catalysts for ciprofloxacin . Higher levels of Mn 3+ were observed for α-MnO 2 probably due to an enhanced population of defects prone to interact with the species produced by plasma irradiation.…”

Section: From Fundamentals To Practical Improvements In Catalytic Pro...mentioning

confidence: 99%

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Recent Progress and Prospects in Catalytic Water Treatment

et al. 2021

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Section: Decontamination Of Waters Polluted With Pharmaceuticals By P...mentioning

confidence: 96%

Section: From Fundamentals To Practical Improvements In Catalytic Pro...mentioning

confidence: 99%

Recent Progress and Prospects in Catalytic Water Treatment

et al. 2021

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“…MnO 2 ‐based materials have shown enormous potential applications in the removal of organic pollutants in various wastewater treatment technologies, including adsorption, catalytic ozonation, photocatalytic oxidation, electrocatalytic oxidation, peroxymonosulfate oxidation, catalytic filtration, and energy harvesting galvanic cell technologies. So far, MnO 2 ‐based materials have shown superior performances in the removal of various organic pollutants in water, such as dye (methylene blue, [ 359–361 ] methyl orange, [ 362,363 ] Rhodamine B, [ 309,364 ] Congo red, [ 365 ] acid fuchsin dye, [ 218 ] crystal violet dye, [ 366 ] acid red 73, [ 367 ] neutral red, [ 368 ] and tartrazin yellow [ 369 ] ), phenolic pharmaceuticals (phenol, [ 66,325,342,370–372 ] bisphenol A, [ 99,275,373–378 ] ibuprofen, [ 295 ] tetrabromobisphenol A, [ 379 ] benzophenone‐3, [ 216 ] 2,4‐dichlorophenol, [ 380 ] 4‐chlorophenol, [ 381 ] and 4‐nitrophenol [ 382 ] ), antibiotics (tetracycline, [ 383 ] ceftiofur, [ 243 ] and lomefloxacin [ 243 ] ), as well as ammonia borane, [ 384 ] amides, [ 385 ] lignin, [ 386 ] peroxymonosulfate, [ 237 ] 17 β‐Estradiol, [ 249 ] m ‐aminophenol, [ 387 ] carbamazepine, [ 388 ] dichloroacetic acid, [ 389 ] p ‐arsanilic acid, [ 390 ] phenylarsonic acids, [ 391 ] m ‐cresol, [ 288 ] oxalic acid, [ 392 ] ciprofloxacin, [ 393,394 ] phenanthrene, [ 246 ] norfloxacin, [ 291 ] etc. ( Table 2 ).…”

Section: Environmental Applicationsmentioning

confidence: 99%

MnO₂‐Based Materials for Environmental Applications

et al. 2021

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Manganese dioxide (MnO2) is a promising photo–thermo–electric‐responsive semiconductor material for environmental applications, owing to its various favorable properties. However, the unsatisfactory environmental purification efficiency of this material has limited its further applications. Fortunately, in the last few years, significant efforts have been undertaken for improving the environmental purification efficiency of this material and understanding its underlying mechanism. Here, the aim is to summarize the recent experimental and computational research progress in the modification of MnO2 single species by morphology control, structure construction, facet engineering, and element doping. Moreover, the design and fabrication of MnO2‐based composites via the construction of homojunctions and MnO2/semiconductor/conductor binary/ternary heterojunctions is discussed. Their applications in environmental purification systems, either as an adsorbent material for removing heavy metals, dyes, and microwave (MW) pollution, or as a thermal catalyst, photocatalyst, and electrocatalyst for the degradation of pollutants (water and gas, organic and inorganic) are also highlighted. Finally, the research gaps are summarized and a perspective on the challenges and the direction of future research in nanostructured MnO2‐based materials in the field of environmental applications is presented. Therefore, basic guidance for rational design and fabrication of high‐efficiency MnO2‐based materials for comprehensive environmental applications is provided.

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“…It is suggested that OH − could promote ozone decomposition to generate ·OH, thus TOC removal could be enhanced in ozonation systems with higher pH values (Zhu et al, 2017). However, the over abundant OH − might deplete the produced ·OH and thus suppressed the TOC removal rate (Cheng et al, 2020). Both Ce/SS-and Ce/MCM-41-driven catalytic ozonation systems demonstrated good treatment compatibility to a wide pH range and Ce/SS obtained a greater TOC removal efficiency than Ce/MCM-41.…”

Section: Catalytic Efficiencies and Active Sitesmentioning

confidence: 99%

Accelerated catalytic ozonation for aqueous nitrobenzene degradation over Ce-loaded silicas: Active sites and pathways

Wang

Ji²,

Hu³

et al. 2022

Front. Environ. Sci.

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Cerium oxides loaded silica catalysts were synthesized by an impregnation method by simply mixing Ce precursor with silica spherule (Ce/SS) and ordered MCM-41 zeolites (Ce/MCM-41), followed by a mild calcination. Compared with pure SS and MCM-41, Ce modified Ce/SS and Ce/MCM-41 demonstrate much improved catalytic ozonation activities for mineralization of recalcitrant nitrobenzene (NB). At solution pH of 6, 86 and 97% TOC mineralization rates were achieved within 60 min for Ce/MCM-41 and Ce/SS, respectively. Characterization results suggest that Ce loading significantly increases the surface Lewis acidic sites, which would synergize with Ce3+/Ce4+ redox cycle for the activity improvement. With the aid of in situ electron paramagnetic resonance (EPR) spectra and quenching tests, hydroxyl radical (·OH), superoxide radical (O2•–), and singlet oxygen (1O2) are identified as the O3 catalytic decomposition products, while ·OH mainly accounts for NB mineralization. The detailed degradation route of NB was further investigated by the multi-chromatography analysis. NB is firstly oxidized into polyhydroxy compounds, followed by small molecular organic acids, and finally being mineralized into CO2 and H2O. This study established a facile strategy to synthesize highly active and stable Ce/SiO2 catalysts for catalytic ozonation, and elucidated the in-depth mechanisms for the activity origins of the Ce loaded silica-based materials in catalytic ozonation processes (COP).

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Plasma-catalytic degradation of ciprofloxacin in aqueous solution over different MnO2 nanocrystals in a dielectric barrier discharge system

Cited by 56 publications

References 45 publications

Recent Progress and Prospects in Catalytic Water Treatment

Recent Progress and Prospects in Catalytic Water Treatment

MnO₂‐Based Materials for Environmental Applications

Accelerated catalytic ozonation for aqueous nitrobenzene degradation over Ce-loaded silicas: Active sites and pathways

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Plasma-catalytic degradation of ciprofloxacin in aqueous solution over different MnO2 nanocrystals in a dielectric barrier discharge system

Cited by 56 publications

References 45 publications

Recent Progress and Prospects in Catalytic Water Treatment

Recent Progress and Prospects in Catalytic Water Treatment

MnO2‐Based Materials for Environmental Applications

Accelerated catalytic ozonation for aqueous nitrobenzene degradation over Ce-loaded silicas: Active sites and pathways

Contact Info

Product

Resources

About

MnO₂‐Based Materials for Environmental Applications