Embedding wasted hairs in Ti/PbO2 anode for efficient and sustainable electrochemical oxidation of organic wastewater

Shao, Dan; Wang, Zekang; Zhang, Cuiping; Li, Weijia; Xu, Hao; Tan, Guoqiang; Yan, Wei

doi:10.1016/j.cclet.2021.07.061

Cited by 32 publications

(5 citation statements)

References 27 publications

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“…It can be seen that four electrodes have similar curves; the peak current of the CMS-Nd-PbO 2 electrode is higher than those of the other three electrodes, while the peak current of the PbO 2 electrode is the smallest. The voltammetric charge 41 (q*) can be reacted with the electrode surface active site and specific surface area, and Eq. 2 shows the relationship between q* and the scan rate.…”

Section: Resultsmentioning

confidence: 99%

CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

Chen,

Tao,

Wang

et al. 2023

J. Electrochem. Soc.

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In this study, a lead dioxide electrode co-modified with carbon microspheres and neodymium (CMS-Nd-PbO2) was prepared. The structural morphology and electrochemical properties of the four electrodes, PbO2, CMS-PbO2, Nd-PbO2, and CMS-Nd-PbO2, were compared by field emission scanning electron microscopy, X-ray diffractometer, X-ray photoelectron spectroscopy, cyclic voltammetry, and electrochemical impedance, respectively. The results showed that the prepared CMS-Nd-PbO2 electrode had higher surface denseness and higher electrode activity. Based on the accelerated lifetime experiment, the actual working life of four electrodes was studied, and the CMS-Nd-PbO2 electrode had a relatively long lifetime, increased 24.60% compared with the PbO2 electrode. The influencing parameters of electrochemical degradation of bisphenol S (BPS) by CMS-Nd-PbO2 electrode, the ability of different electrodes to generate hydroxyl radicals, reaction mechanism, and the possible BPS degradation pathways were also discussed. Further, the safety of the prepared electrode was evaluated. Under the optimal parameters, the removal rate of BPS and chemical oxygen demand (COD) were 96.49% and 51.84%, respectively. The dissolved lead ion concentration in the solution after electrochemical oxidation was lower than the WHO standard. The CMS-Nd-PbO2 electrode showed promising applications in the degradation of emerging contaminants wastewater.

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Section: Resultsmentioning

confidence: 99%

CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

Chen,

Tao,

Wang

et al. 2023

J. Electrochem. Soc.

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“…To fabricate high-performance electrodes, the first step is to choose a suitable substrate. Based on previous studies, Si, [49][50][51][52] Nb, [53,54] Ta, [55,56] Pt, [57] and Ti [58][59][60][61][62][63] have been used as substrate materials. Among these substrates, Si is a brittle material with poor electrical conductivity, while Nb and Pt have high cost and are not conducive to commercial applications.…”

Section: An Overview Of Ti-based Dsasmentioning

confidence: 99%

Review on Structural Adjustment Strategies of Titanium‐Based Metal Oxide Dimensionally Stable Anodes in Electrochemical Advanced Oxidation Technology

Qiu,

Wang,

Fan

et al. 2024

Adv Eng Mater

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Emerging organic pollutants and refractory pollutants in water bodies have caused severe harm to the ecological environment and human health. Electrochemical advanced oxidation processes (EAOPs) are currently one of the most effective oxidation methods to deal with refractory organic pollutants. Electrode materials serve as the most critical component in influencing the EAOP performance. Dimensionally stable anodes (DSAs) have the advantages of dimensional stability, structural diversity, chemical stability, low oxygen evolution potential and long service life, etc. Herein, several types of Ti‐based metal oxide DSAs (Ti/MOx DSAs) commonly used in EAOPs in the past 5 years, including Ti/IrO2, Ti/RuO2, Ti/PbO2, Ti/Sb–SnO2, and Ti/TiO2, are introduced. The modification methods including metal doping, composition adjustment, nanostructure construction, introduction of intermediate layers, compositing with carbon materials, and formation of 3D structures as well as the applications of these modified Ti‐based DSAs in EAOP for the rapid degradation of various organic pollutants are summarized and their advantages and current shortcomings of electrodes are pointed out. Finally, the Ti‐based DSA's current limitations and future development prospects are concluded.

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“…Titanium-based metal oxide electrode uses a titanium sheet as the substrate and is covered with one or more metal oxide coatings, also known as a dimension stable anode (DSA). Common metal oxide coatings on DSA electrodes mainly include Sb-SnO 2 [24][25][26][27], IrO 2 [28], RuO 2 [29], and PbO 2 [30][31][32][33][34]. At present, there are many investigations on the doping modification methods of the Ti/PbO 2 electrode, mainly including the doping ion [35][36][37], introducing the intermediate layer [38], doping nanoparticles [39,40] and regulating the micro-morphology of electrode materials [41,42].…”

Section: Anodementioning

confidence: 99%

Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment

Guo

et al. 2022

Catalysts

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To achieve low-carbon and sustainable development it is imperative to explore water treatment technologies in a carbon-neutral model. Because of its advantages of high efficiency, low consumption, and no secondary pollution, electrocatalytic oxidation technology has attracted increasing attention in tackling the challenges of organic wastewater treatment. The performance of an electrocatalytic oxidation system depends mainly on the properties of electrodes materials. Compared with the instability of graphite electrodes, the high expenditure of noble metal electrodes and boron-doped diamond electrodes, and the hidden dangers of titanium-based metal oxide electrodes, a titanium sub-oxide material has been characterized as an ideal choice of anode material due to its unique crystal and electronic structure, including high conductivity, decent catalytic activity, intense physical and chemical stability, corrosion resistance, low cost, and long service life, etc. This paper systematically reviews the electrode preparation technology of Magnéli phase titanium sub-oxide and its research progress in the electrochemical advanced oxidation treatment of organic wastewater in recent years, with technical difficulties highlighted. Future research directions are further proposed in process optimization, material modification, and application expansion. It is worth noting that Magnéli phase titanium sub-oxides have played very important roles in organic degradation. There is no doubt that titanium sub-oxides will become indispensable materials in the future.

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Embedding wasted hairs in Ti/PbO2 anode for efficient and sustainable electrochemical oxidation of organic wastewater

Cited by 32 publications

References 27 publications

CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

Review on Structural Adjustment Strategies of Titanium‐Based Metal Oxide Dimensionally Stable Anodes in Electrochemical Advanced Oxidation Technology

Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment

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Embedding wasted hairs in Ti/PbO2 anode for efficient and sustainable electrochemical oxidation of organic wastewater

Cited by 32 publications

References 27 publications

CMS and Nd Co-Modified PbO2 Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

CMS and Nd Co-Modified PbO2 Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

Review on Structural Adjustment Strategies of Titanium‐Based Metal Oxide Dimensionally Stable Anodes in Electrochemical Advanced Oxidation Technology

Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment

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Product

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CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S

CMS and Nd Co-Modified PbO₂ Electrodes with Enhanced Lifetime and Electrochemical Activity for the Degradation of Bisphenol S