Electrochemical treatment of artificial humidity condensate by large-scale boron doped diamond electrode

Li, Hao; Yu, Qihui; Yang, Bin; Li, Zhongjian; Lei, Lecheng

doi:10.1016/j.seppur.2014.10.004

Cited by 23 publications

(8 citation statements)

References 36 publications

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“…The effects of the initial concentration of TC on electrochemical degradation were shown in Figure 4 d. TC was almost completely degraded at 70 min when the initial concentration was 20 mg/L, suggesting that the speed of the ·OH production was faster than that of the TC diffusion to the electrode surface [ 23 , 25 ]. Thus, the TC degradation on a Ti/Ta 2 O 5 -IrO 2 anode was a diffusion-controlled electrochemical process, which was in agreement with Zhao et al [ 26 , 27 ]. Due to the same galactic conditions, the direct or indirect oxidation processes produced similar concentrations of the electron transfer and reactive groups.…”

Section: Resultssupporting

confidence: 90%

Electrochemical Degradation of Tetracycline Using a Ti/Ta2O5-IrO2 Anode: Performance, Kinetics, and Degradation Mechanism

et al. 2021

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Tetracycline (TC) is widely used in production and in life. The high volume of its use and the difficulty of its disposal have become the most important causes of environmental pollution. A suitable method needs to be found to solve this problem. In this study, the Ti/Ta2O5-IrO2 electrode was characterized for its surface morphology and crystal composition. The electrochemical catalytic ability of the Ti/Ta2O5-IrO2 electrode was investigated using LSV and CV tests. The electrochemical degradation of tetracycline (TC) in water with a Ti/Ta2O5-IrO2 anode was investigated. The main influence factors, such as current density (2.5–10 mA/cm2), electrode spacing (20–40 mm), initial TC concentration (20–80 mg/L) and initial solution pH (4.74–9.48) were analyzed in detail and their influences on reaction kinetics was summed up. The removal rate increased along with the increasing current density, decreasing initial TC concentration and decreasing of electrode distance under the experimental conditions. The optimum pH was 4.74. UV–vis, total organic carbon (TOC) and high-performance liquid chromatography-mass spectrometry (HPLC-MS) analyses were used to reveal the mechanism of TC degradation. Nine main intermediates were identified, and the degradation pathways were proposed. A new insight has been postulated for the safe and efficient degradation of TC using the Ti/Ta2O5-IrO2 electrode.

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Section: Resultssupporting

confidence: 90%

Electrochemical Degradation of Tetracycline Using a Ti/Ta2O5-IrO2 Anode: Performance, Kinetics, and Degradation Mechanism

et al. 2021

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“…Besides, several research studies have demonstrated the high oxidizing power of Å OH physisorbed on BDD, which leads to a great oxidation/mineralization efficiency. For this reason, BDD is a commonly used anode material [8,15,18,19].…”

Section: Introductionmentioning

confidence: 99%

Application of a new sandwich of granular activated and fiber carbon as cathode in the electrochemical advanced oxidation treatment of pharmaceutical effluents

Bocos

Alfaya

Iglesias

et al. 2015

Separation and Purification Technology

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“…Current efficiency (CE) ( Figure 6 c) and the energy consumption (E c ) have also been analyzed ( Figure 6 d). Results show that along with electrolysis time extension, E c increased while CE decreased [ 44 ]. When current density is 10 mA cm −2 , CE was as high as 37.19% after 1 h reaction, but dropped to 14.87% after 6 h reaction.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of PbO2 Electrodes with Different Doses of Er Doping for Sulfonamides Degradation

Zheng

Wei

Chen

et al. 2022

IJERPH

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In the present study, PbO2 electrodes, doped with different doses of Er (0%, 0.5%, 1%, 2%, and 4%), were fabricated and characterized. Surface morphology characterization by SEM-EDS and XRD showed that Er was successfully doped into the PbO2 catalyst layer and the particle size of Er-PbO2 was reduced significantly. Electrochemical oxidation of sulfamerazine (SMR) in the Er-PbO2 anode system obeyed te pseudo first-order kinetic model with the order of 2% Er-PbO2 > 4% Er-PbO2 > 1% Er-PbO2 > 0.5% Er-PbO2 > 0% PbO2. For 2% Er-PbO2, kSMR was 1.39 h−1, which was only 0.93 h−1 for 0% PbO2. Effects of different operational parameters on SMR degradation in 2% Er-PbO2 anode system were investigated, including the initial pH of the electrolyte and current density. Under the situation of an initial pH of 3, a current density of 30 mA·cm−2, a concentration of SMR 30 mg L−1, and 0.2 M Na2SO4 used as supporting electrolyte, SMR was totally removed in 3 h, and COD mineralization efficiency was achieved 71.3% after 6 h electrolysis. Furthermore, the degradation pathway of SMR was proposed as combining the active sites identification by density functional calculation (DFT) and intermediates detection by LC-MS. Results showed that Er-PbO2 has great potential for antibiotic wastewater treatment in practical applications.

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Electrochemical treatment of artificial humidity condensate by large-scale boron doped diamond electrode

Cited by 23 publications

References 36 publications

Electrochemical Degradation of Tetracycline Using a Ti/Ta2O5-IrO2 Anode: Performance, Kinetics, and Degradation Mechanism

Electrochemical Degradation of Tetracycline Using a Ti/Ta2O5-IrO2 Anode: Performance, Kinetics, and Degradation Mechanism

Application of a new sandwich of granular activated and fiber carbon as cathode in the electrochemical advanced oxidation treatment of pharmaceutical effluents

Fabrication of PbO2 Electrodes with Different Doses of Er Doping for Sulfonamides Degradation

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