Research on different oxidants synergy with dielectric barrier discharge plasma in degradation of Orange G: Efficiency and mechanism

Sang, Wenjiao; Lü, Wei; Mei, Longjie; Jia, Danni; Cao, Cheng Bo; Li, Qiang; Wang, Chen; Zhan, Cheng

doi:10.1016/j.seppur.2021.119473

Cited by 14 publications

(2 citation statements)

References 31 publications

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“…Xu et al [138] found that low concentration (0.1-1.0 mmol/L) of H 2 O 2 could promote the degradation of norfloxacin (NOR) by plasma, while high concentration (1.0-2.0 mmol/L) of H 2 O 2 could inhibit the degradation of NOR. Sang et al [139] compared the effect of PMS, SPC, and ferrate on the degradation of Orange G (OG) by DBD plasma, and found that the degradation efficiency of OG by ferrate plasma was the best. The possible mechanism of degradation of EOPs by non-thermal plasma combined with different oxidants is shown in Figure 6.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Advanced Oxidation Processes for Emerging Contaminant Removal

2023

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Section: Supplementary Materialsmentioning

confidence: 99%

Advanced Oxidation Processes for Emerging Contaminant Removal

2023

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“…It is non-biodegradable, tenacious, and difficult to break down. Orange G in wastewater can produce harmful and toxic by-products through hydrolysis, oxidation, or other chemical processes, endangering both people and ecosystems [4]. The common removal methods for the dye currently include adsorption, coagulation-flocculation, membrane filtration, and advanced oxidation techniques [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Orange G Using PMS Triggered by NH2-MIL-101(Fe): An Amino-Functionalized Metal–Organic Framework

Mo,

Chen,

Wang

2024

Molecules

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As an azo dye, OG has toxic and harmful effects on ecosystems. Therefore, there is an urgent need to develop a green, environmentally friendly, and efficient catalyst to activate peroxymonosulfate (PMS) for the degradation of OG. In this study, the catalysts MIL-101(Fe) and NH2-MIL-101(Fe) were prepared using a solvothermal method to carry out degradation experiments. They were characterized by means of XRD, SEM, XPS, and FT-IR, and the results showed that the catalysts were successfully prepared. Then, a catalyst/PMS system was constructed, and the effects of different reaction systems, initial pH, temperature, catalyst dosing, PMS concentration, and the anion effect on the degradation of OG were investigated. Under specific conditions (100 mL OG solution with a concentration of 50 mg/L, pH = 7.3, temperature = 25 °C, 1 mL PMS solution with a concentration of 100 mmol/L, and a catalyst dosage of 0.02 g), the degradation of OG with MIL-101(Fe) was only 36.6% within 60 min; as a comparison, NH2-MIL-101(Fe) could reach up to 97.9%, with a reaction constant k value of 0.07245 min−1. The NH2-MIL-101 (Fe)/PMS reaction system was able to achieve efficient degradation of OG at different pH values (pH = 3~9). The degradation mechanism was analyzed using free-radical quenching tests. The free-radical quenching tests showed that SO4•−, •OH, and 1O2 were the main active species during the degradation of OG.

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Synergistic degradation of Orange G in water via water surface plasma assisted with β-Bi2O3/CaFe2O4

Hua

Kang

2023

Korean J. Chem. Eng.

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Research on different oxidants synergy with dielectric barrier discharge plasma in degradation of Orange G: Efficiency and mechanism

Cited by 14 publications

References 31 publications

Advanced Oxidation Processes for Emerging Contaminant Removal

Advanced Oxidation Processes for Emerging Contaminant Removal

Degradation of Orange G Using PMS Triggered by NH2-MIL-101(Fe): An Amino-Functionalized Metal–Organic Framework

Synergistic degradation of Orange G in water via water surface plasma assisted with β-Bi2O3/CaFe2O4

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