Electrochemical degradation of Musk ketone in aqueous solutions using a novel porous Ti/SnO2-Sb2O3/PbO2 electrodes

Zhao, Wei; Xing, Juntao; Chen, Donghui; Dong-yuan, Jin; Shen, Jiale

doi:10.1016/j.jelechem.2016.05.050

Cited by 64 publications

(15 citation statements)

References 50 publications

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“…Porous Ti plays an essential role in improving lead dioxide electrode performance compared to the traditional planar Ti substrate. Zhao et al [64] found that compared to the traditional PbO 2 electrode, Ti/SnO 2 -Sb 2 O 3 /PbO 2 had higher stability, safety, and removal performance of musk ketone. Xie et al [65] developed a TiO 2 -based SnO 2 -Sb/polytetrafluoroethylene resin-PbO 2 electrode based on TiO 2 nanotubes and demonstrated the growing of TiO 2 nanotubes on Ti material led to an increase in current efficiency.…”

Section: Lead and Lead Dioxidementioning

confidence: 99%

Recent Trends in Removal Pharmaceuticals and Personal Care Products by Electrochemical Oxidation and Combined Systems

Dao

Yang

Chen

et al. 2020

Water

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Due to various potential toxicological threats to living organisms even at low concentrations, pharmaceuticals and personal care products in natural water are seen as an emerging environmental issue. The low efficiency of removal of pharmaceuticals and personal care products by conventional wastewater treatment plants calls for more efficient technology. Research on advanced oxidation processes has recently become a hot topic as it has been shown that these technologies can effectively oxidize most organic contaminants to inorganic carbon through mineralization. Among the advanced oxidation processes, the electrochemical advanced oxidation processes and, in general, electrochemical oxidation or anodic oxidation have shown good prospects at the lab-scale for the elimination of contamination caused by the presence of residual pharmaceuticals and personal care products in aqueous systems. This paper reviewed the effectiveness of electrochemical oxidation in removing pharmaceuticals and personal care products from liquid solutions, alone or in combination with other treatment processes, in the last 10 years. Reactor designs and configurations, electrode materials, operational factors (initial concentration, supporting electrolytes, current density, temperature, pH, stirring rate, electrode spacing, and fluid velocity) were also investigated.

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Section: Lead and Lead Dioxidementioning

confidence: 99%

Recent Trends in Removal Pharmaceuticals and Personal Care Products by Electrochemical Oxidation and Combined Systems

Dao

Yang

Chen

et al. 2020

Water

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“…The current density was 5 mA cm −2 and the PbO 2 was deposited on the porous Ti/SnO 2 -Sb 2 O 3 electrode at 65 • C for 0.5 h under stirring conditions. Finally, the prepared porous Ti/SnO 2 -Sb 2 O 3 /PbO 2 electrodes were washed in deionized water [15][16][17].…”

Section: Electrode Preparationmentioning

confidence: 99%

Preparation and Characterization of Porous Ti/SnO2–Sb2O3/PbO2 Electrodes for the Removal of Chloride Ions in Water

Peng

Chen

et al. 2019

Processes

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Porous Ti/SnO2–Sb2O3/PbO2 electrodes for electrocatalytic oxidation of chloride ions were studied by exploring the effects of different operating conditions, including pore size, initial concentration, current density, initial pH, electrode plate spacing, and the number of cycles. In addition, a physicochemical characterization and an electrochemical characterization of the porous Ti/SnO2–Sb2O3/PbO2 electrodes were performed. The results showed that Ti/SnO2–Sb2O3/PbO2 electrodes with 150 µm pore size had the best removal effect on chloride ions with removal ratios amounting up to 98.5% when the initial concentration was 10 g L−1, the current density 125 mA cm−2, the initial pH = 9, and the electrode plate spacing 0.5 cm. The results, moreover, showed that the oxygen evolution potential of 150 µm porous Ti/SnO2-Sb2O3/PbO2 electrodes was highest, which minimized side reactions involving oxygen formation and which increased the removal effect of chloride ions.

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“…In this sense, b-PbO 2 is one of the most investigated anode materials concerning both inorganic [10,19e22] and organic [23,24] doping, modification of the Ti substrate to avoid migration of the ion O 2À (e.g. using Pt [25,26] or oxide [20,24,27] coatings, some of them nanostructured [10,28]), usage of 3D substrates [29e31] or graphene interlayers [32], and changes in the b-phase morphology [33] to increase the film stability and the mineralization efficiency in the organics degradation. The use of transition metals as inorganic dopants of b-PbO 2 has led to an increase in its electrocatalytic power for organics oxidation [10,20,21], whereas the use of fluoride ion-based electrolytes [34] and fluorine-based polymers (polyvinylidene difluoride e PVDF [23,24] or polytetrafluoroethylene e PTFE [35]) in the electrodeposition bath have led to b-PbO 2 films with longer-lasting stability (as inferred from service life determinations).…”

Section: Introductionmentioning

confidence: 99%

Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped β-PbO2 anode: Critical comparison to a BDD anode

Sánchez-Montes

Neto

Silva³

et al. 2018

Electrochimica Acta

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The electrochemical degradation of the antibiotic norfloxacin (NOR) was investigated using an electrodeposited polytetrafluoroethylene (PTFE)-doped b-PbO 2 anode; its attained performance was compared to that of a boron-doped diamond (BDD) anode to check out a literature claim of superior performance by the former anode. The PTFE content in the electrodeposition bath was optimized to lead to a significantly extended service life of the b-PbO 2 anode despite its titanium substrate. The NOR degradation electrolyses (100 mg L À1 NOR in 0.1 mol L À1 Na 2 SO 4) were carried out in a filter-press flow cell (flow rate of 420 L h À1) using the following optimized conditions: no pH control, current density of 10 mA cm À2 , and 40 C. The electrooxidation process performance under these conditions was assessed through the evolution of the attained removals of NOR, total organic carbon (TOC), and antibacterial activity against Escherichia coli; the evolution of oxidation intermediates (aromatic compounds and carboxylic acids) was also assessed. In spite of the complete oxidation of NOR, the TOC removal attained with the PTFE-doped b-PbO 2 anode was relatively low (70% after 12 h, compared to 90% after only 5 h for a Si/BDD anode). As a consequence of this inferior performance comparatively to that of a BDD anode, a higher number of aromatic intermediates was detected; these intermediates seemed to still present antibacterial activity against Escherichia coli, which lasted even after all NOR was oxidized, contrary to the case of the electrooxidation with a BDD anode. The performance of the PTFE-doped b-PbO 2 anode was not superior to that of a BDD anode, i.e. the doping of the b-PbO 2 film with PTFE, making it hydrophobic, does not change the oxidation power of the anode despite increasing its service life.

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Electrochemical degradation of Musk ketone in aqueous solutions using a novel porous Ti/SnO2-Sb2O3/PbO2 electrodes

Cited by 64 publications

References 50 publications

Recent Trends in Removal Pharmaceuticals and Personal Care Products by Electrochemical Oxidation and Combined Systems

Recent Trends in Removal Pharmaceuticals and Personal Care Products by Electrochemical Oxidation and Combined Systems

Preparation and Characterization of Porous Ti/SnO2–Sb2O3/PbO2 Electrodes for the Removal of Chloride Ions in Water

Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped β-PbO2 anode: Critical comparison to a BDD anode

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