Improved degradation of tetracycline, norfloxacin and methyl orange wastewater treatment with dual catalytic electrode assisted self-sustained Fe2+ electro-Fenton system: Regulatory factors, mechanisms and pathways

Liu, Yuting; Gao, Changfei; Liu, Lifen; Yu, Tingting; Li, Yihua

doi:10.1016/j.seppur.2021.120232

Cited by 27 publications

(7 citation statements)

References 55 publications

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“…The value for the TiO 2-x NCs/SbÀ SnO 2 electrode also have competitiveness to other reports, 0.0198 min À 1 for Ti/ SbÀ SnO 2 -4 %TiN, [66] 0.0098 min À 1 for a TiO 2 film, [67] and 0.0135 min À 1 for PbO 2 /SnO 2 . [68] The quenching results also demonstrated the important role of * OH in the degradation of AYR and MO, with 36.9 % and 55.0 %, respectively (Figure 7I). More details are described in Supporting Information.…”

Section: Degradation Of Anion Dyesmentioning

confidence: 75%

Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

et al. 2023

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Stable and efficient SnO2 electrodes are very promising for effectively degrading refractory organic pollutants in wastewater treatment. In this regard, we firstly prepared Ti3+ self‐doped urchin‐like rutile TiO2 nanoclusters (TiO2‐xNCs) on a Ti mesh substrate by hydrothermal and electroreduction to serve as an interlayer for the deposition of Sb−SnO2. The TiO2‐xNCs/Sb−SnO2 anode exhibited a high oxygen evolution potential (2.63 V vs. SCE) and strong ⋅OH generation ability for the enhanced amount of absorbed oxygen species. Thus, the degradation results demonstrated its good rhodamine B (RhB), methylene blue (MB), alizarin yellow R (AYR), and methyl orange (MO) removal performance, with the rate constant increased 5.0, 1.9, 1.9, and 4.7 times, respectively, compared to the control Sb−SnO2 electrode. RhB and AYR degradation mechanisms are also proposed based on the results of high‐performance liquid chromatography coupled with mass spectrometry and quenching experiments. More importantly, this unique rutile interlayer prolonged the anode lifetime sixfold, given its good lattice match with SnO2 and the three‐dimensional concave–convex structure. Consequently, this work paves a new way for designing the crystal form and structure of the interlayers to obtain efficient and stable SnO2 electrodes for addressing dye wastewater problems.

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Section: Degradation Of Anion Dyesmentioning

confidence: 75%

Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

et al. 2023

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“…Owing to the spread of the new crown epidemic worldwide, most people were infected and various drugs containing antibiotics were used to treat fever symptoms. 1,2 The extensive use of these drugs led to a large amount of antibiotic residues in domestic sewage and pharmaceutical wastewater. 3,4 These wastewaters were directly discharged into the surface water of the earth, polluting freshwater resources and seriously endangering biological health.…”

Section: Introductionmentioning

confidence: 99%

Construction of a novel S-type γ-Bi₂O₃/CeO₂ heterojunction for highly efficient photocatalytic degradation of antibiotics

Cao,

Liu,

et al. 2024

Phys. Chem. Chem. Phys.

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“…9 Advanced oxidation processes (AOPs) are commonly viewed as the most promising strategies as they efficiently decompose a broad spectrum of dyes by generating highly reactive oxygen species (ROS). 10 Among AOPs, electro-Fenton has been investigated for efficient MO degradation using catalysts, 4 electrode modification 11 or adding oxidizing chemicals. 10 Recently, bio-electro-Fenton technology, which uses microorganisms as catalysts based on electro-Fenton systems, 12,13 is proposed as a consequence of its low toxicity, low cost, energy-saving, high efficiency and mild conditions.…”

Section: Introductionmentioning

confidence: 99%

Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

Wang,

Peng

et al. 2024

J of Chemical Tech & Biotech

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BackgroundThe efficient and green technology of dye removal has been widely investigated. In this study, bio‐electro‐Fenton system was used to degrade methyl orange (MO). For the system optimization, five experimental groups were detected, including pH (1–6), Fe2+ concentration (3–15 mM), airflow rate (0–20 mL/min), external voltages (0.2–1.0 V), and initial MO concentration (20–100 mg/L).ResultspH 3, Fe2+ concentration of 9 mM, air flowrate of 12 mL/min, external voltage of 0.6 V and MO concentration of 60 mg/L were selected as the optimal conditions, resulting in the efficiency of 92%. For the pathway investigation of MO degradation, under the oxidization by •OH, demethylation, azo bond broken and benzene ring structure broken were obtained. Intermediate products were predicted. For the system evaluation, energy consumption of 1 m3 MO wastewater was 0.15–0.59 KWh. The total cost of degrading MO wastewater could decrease to 470.0 $/m3 by adjusting operational time.ConclusionConsidering the Fe2+ regeneration and the little energy consumption, the bio‐electro‐Fenton system could be considered as one of the most environment‐friendly approaches for MO degradation, while, quantitative evaluation on sustainability needed to be further discussed via advanced assessment tools (such as life cycle assessment).This article is protected by copyright. All rights reserved.

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Improved degradation of tetracycline, norfloxacin and methyl orange wastewater treatment with dual catalytic electrode assisted self-sustained Fe2+ electro-Fenton system: Regulatory factors, mechanisms and pathways

Cited by 27 publications

References 55 publications

Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Construction of a novel S-type γ-Bi₂O₃/CeO₂ heterojunction for highly efficient photocatalytic degradation of antibiotics

Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

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Improved degradation of tetracycline, norfloxacin and methyl orange wastewater treatment with dual catalytic electrode assisted self-sustained Fe2+ electro-Fenton system: Regulatory factors, mechanisms and pathways

Cited by 27 publications

References 55 publications

Novel Sb−SnO2 Electrode with Ti3+ Self‐Doped Urchin‐Like Rutile TiO2 Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Novel Sb−SnO2 Electrode with Ti3+ Self‐Doped Urchin‐Like Rutile TiO2 Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Construction of a novel S-type γ-Bi2O3/CeO2 heterojunction for highly efficient photocatalytic degradation of antibiotics

Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

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Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Novel Sb−SnO₂ Electrode with Ti³⁺ Self‐Doped Urchin‐Like Rutile TiO₂ Nanoclusters as the Interlayer for the Effective Degradation of Dye Pollutants

Construction of a novel S-type γ-Bi₂O₃/CeO₂ heterojunction for highly efficient photocatalytic degradation of antibiotics