Preparation and characterization of Ce and PVP co-doped PbO2 electrode for waste water treatment

Jia, Ying; Wang, Fengwu; Xu, Maotian; Hun, Yunhu; Fang, Wenyan; Wei, Yijun; Zhu, Chen

doi:10.1016/j.jtice.2015.01.017

Cited by 33 publications

(11 citation statements)

References 36 publications

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“…US$ 20/kg (NH 4 þ -N) for Ti/Ce:MnO x -C electrode. The above results indicated that the co-incorporating of carbon black and Ce could improve the conductivity of electrodes, leading to reduced cell potential and less energy consumption during electrochemical process ( Jin et al 2015).…”

Section: Electrochemical Degradation Of Ammonia Nitrogenmentioning

confidence: 76%

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Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

Zhao

Liu

et al. 2021

Water Science and Technology

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Ti-based electrode coated with MnOx catalytic layer has presented superior electrochemical activity for degradation of organic pollution in wastewater, however, the industrial application of Ti-based MnOx electrode is limited by the poor stability of electrode. In this study, the novel Ti-based MnOx electrodes co-incorporated with rare earth (Ce) and conductive carbon black (C) were prepared by spraying-calcination method. The Ti/Ce:MnOx-C electrode, with uniform and integrate surface and enhanced Mn(IV) content by C and Ce co-incorporating, could completely remove ammonia nitrogen (NH4+-N) with N2 as the main product. The cell potential and energy consumption of Ti/Ce:MnOx-C electrode during the electrochemical process was significantly reduced compared with Ti/MnOx electrode, which mainly originated from the enhanced electrochemical activity and reduced charge transfer resistance by Ce and C co-incorporating. The accelerated lifetime tests in sulfuric acid showed that the actual service lifetime of Ti/Ce:MnOx-C was ca. 25 times that of Ti/MnOx, which demonstrated the significantly promoted stability of MnOx-based electrode by Ce and C co-incorporating.

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Section: Electrochemical Degradation Of Ammonia Nitrogenmentioning

confidence: 76%

“…25 times that of Ti/MnO x electrode (2.2 h). The improved stability of Ti/Ce: MnO x -C electrode was mainly originated from the co-incorporating of carbon black and Ce, which not only enhanced the conductivity but also improved the surface evenness of the electrode (Gargouri et al 2014;Jin et al 2015).…”

Section: Electrochemical Degradation Of Ammonia Nitrogenmentioning

confidence: 99%

Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

Zhao

Liu

et al. 2021

Water Science and Technology

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“…The average crystallite size calculated from the width of [101] diffraction peaks by Scherrer's formula is 17.64 nm (Ce-Ni) and 28.76 nm (undoped). According to literature [20], the diffraction peak width is inversely proportional to the crystallite size. The result indicates that the deposited Ni-Ce-PbO 2 has smaller crystallite size than other electrode.…”

Section: Surface Morphological and Crystallographic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…, and Ce 2 O 3 on PbO 2 electrode could promote the degradation of 4-chlorophenol [20]. Jin et al [20] found that doping Ce can form smaller crystal size on the surface of the electrode, resulting in the increase of specific surface area and catalytically active sites. Xia et al [21] reported that proper doping of Ni can make the grains dense, which not only facilitates electron movement, and improves electrochemical performance, but also helps to extend electrode life.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Porous Ni, Ce-Doped PbO2 Electrode for Efficient Treatment of Chloride Ion in Wastewater

et al. 2020

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The porous Ti/Sb-SnO2/Ni-Ce-PbO2 electrode was prepared by using a porous Ti plate as a substrate, an Sb-doped SnO2 as an intermediate, and a PbO2 doped with Ni and Ce as an active layer. The surface morphology and crystal structure of the electrode were characterized by scanning electron microscope(SEM), energy dispersive spectrometer(EDS), and X-Ray diffraction(XRD). The electrochemical performance of the electrodes was tested by linear sweep voltammetry (LSV), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and electrode life test. The results show that the novel porous Ni-Ce-PbO2 electrodes with larger active surface area have better electrochemical activity and longer electrode life than porous undoped PbO2 electrodes and flat Ni-Ce-PbO2 electrodes. In this work, the removal of Cl− in simulated wastewater on three electrodes was also studied. The results show that the removal effect of the porous Ni-Ce-PbO2 electrode is obviously better than the other two electrodes, and the removal rate is 87.4%, while the removal rates of the other two electrodes were 72.90% and 80.20%, respectively. In addition, the mechanism of electrochemical dechlorinating was also studied. With the progress of electrolysis, we find that the increase of OH- inhibits the degradation of Cl−, however, the porous Ni-Ce-PbO2 electrode can effectively improve the removal of Cl−.

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Preparation of doped PbO₂ electrode and its application for aromatic aldehydes

Shi

Liu

Xin

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUND This work prepared doped PbO2 electrodes with rare earth oxides, including SnO2–Sb2O5/Ce–PbO2 and SnO2–Sb2O5/Nd–PbO2. We investigated the effect of rare earth oxide dopants on the properties of the PbO2 electrodes, and the application of the electrodes to the synthesis of aromatic aldehydes. RESULTS Scanning electron microscopy, X‐ray diffraction, energy‐dispersive X‐ray analysis and X‐ray photoelectron spectroscopy were used to characterize the surface morphology, crystal structure, elemental content and states of the modified electrodes. The electrodes doped with Ce and Nd have a finer surface, resulting in a larger contact area and increased catalytic oxidation capacity. Cyclic voltammetry and linear sweep voltammetry were also utilized to study the electrochemical response of the modified electrodes. The current efficiency of the prepared redox mediator reached 93.2% through SnO2–Sb2O5/Nd–PbO2 electrode, which was higher than that of other electrodes. Furthermore, the electrode efficiency was basically stable after 10 cycles, which still could reach 88.7%. CONCLUSION It was found that Nd‐doped electrode could enhance indirect anodic oxidation through comparing the effect of SnO2–Sb2O5/PbO2, SnO2–Sb2O5/Ce–PbO2 and SnO2–Sb2O5/Nd–PbO2 electrodes in the application of the synthesis of aromatic aldehydes. © 2023 Society of Chemical Industry (SCI).

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Preparation and characterization of Ce and PVP co-doped PbO2 electrode for waste water treatment

Cited by 33 publications

References 36 publications

Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

A Novel Porous Ni, Ce-Doped PbO2 Electrode for Efficient Treatment of Chloride Ion in Wastewater

Preparation of doped PbO₂ electrode and its application for aromatic aldehydes

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Preparation and characterization of Ce and PVP co-doped PbO2 electrode for waste water treatment

Cited by 33 publications

References 36 publications

Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

Improvement of stability and reduction of energy consumption for Ti-based MnOx electrode by Ce and carbon black co-incorporation in electrochemical degradation of ammonia nitrogen

A Novel Porous Ni, Ce-Doped PbO2 Electrode for Efficient Treatment of Chloride Ion in Wastewater

Preparation of doped PbO2 electrode and its application for aromatic aldehydes

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Preparation of doped PbO₂ electrode and its application for aromatic aldehydes