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Yang W, Deng Z, Wang Y, Ma L, Zhou K, Liu L, Wei Q. Porous boron-doped diamond for efficient electrocatalytic elimination of azo dye Orange G. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Guo J, Liao L, Li Y, Liang J, Wang Y, Ying D, Jia J. Enhanced wastewater treatment via direct electrocatalytic activation of hydrogen peroxide in divided cells with flow-through electrode and bipolar membrane. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Xie J, Zhang C, Waite TD. Hydroxyl radicals in anodic oxidation systems: generation, identification and quantification. WATER RESEARCH 2022; 217:118425. [PMID: 35429884 DOI: 10.1016/j.watres.2022.118425] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/17/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Anodic oxidation has emerged as a promising treatment technology for the removal of a broad range of organic pollutants from wastewaters. Hydroxyl radicals are the primary species generated in anodic oxidation systems to oxidize organics. In this review, the methods of identifying hydroxyl radicals and the existing debates and misunderstandings regarding the validity of experimental results are discussed. Consideration is given to the methods of quantification of hydroxyl radicals in anodic oxidation systems with particular attention to approaches used to compare the electrochemical performance of different anodes. In addition, we describe recent progress in understanding the mechanisms of hydroxyl radical generation at the surface of most commonly used anodes and the utilization of hydroxyl radical in typical electrochemical reactors. This review shows that the key challenges facing anodic oxidation technology are related to i) the elimination of mistakes in identifying hydroxyl radicals, ii) the establishment of an effective hydroxyl radical quantification method, iii) the development of cost effective anode materials with high corrosion resistance and high electrochemical activity and iv) the optimization of electrochemical reactor design to maximise the utilization efficiency of hydroxyl radicals.
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Affiliation(s)
- Jiangzhou Xie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Changyong Zhang
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia; CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia; UNSW Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province, 214206, P.R. China.
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4
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Zhao R, Wang YM, Li J, Meng W, Yang C, Sun C, Lan X. Metal modified (Ni, Ce, Ta) Ti/SnO2–Sb2O5–RuO2 electrodes for enhanced electrochemical degradation of Orange G. J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01645-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Zweigle J, Bugsel B, Schmitt M, Zwiener C. Electrochemical Oxidation of 6:2 Polyfluoroalkyl Phosphate Diester-Simulation of Transformation Pathways and Reaction Kinetics with Hydroxyl Radicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:11070-11079. [PMID: 34327989 DOI: 10.1021/acs.est.1c02106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Polyfluoroalkyl phosphate diesters (diPAPs) are widely used for paper and cardboard impregnation and discharged via waste streams from production processes and consumer products. To improve the knowledge about the environmental fate of diPAPs, electrochemical oxidation (EO) was used to characterize the transformation pathways and reaction kinetics. 6:2 diPAP was transformed electrochemically to perfluorocarboxylic acids (C5-C7 PFCAs) and two intermediates (6:2 fluorotelomer carboxylic acid, FTCA, and 6:2 fluorotelomer unsaturated carboxylic acid, FTUCA). EO of potential intermediates 6:2 monoPAP and 6:2 fluorotelomer alcohol (FTOH) showed similar transformation products but with different ratios. We show that 6:2 diPAP is initiated by OH radical (•OH) reactions, as evidenced by the measured steady-state concentrations of •OH with the probe molecule terephthalic acid, quenching experiments, and pH dependency of the reaction. PFHpA was the main product of 6:2 diPAP oxidation, and it was formed in a pseudo-first-order reaction for which a bimolecular rate constant was estimated to be k O • H , diPAP form PFHpA = 9.4(±1.4) × 107 M-1 s-1 by an initial rate approach. This can be utilized to estimate the environmental half-life of 6:2 diPAP for the reaction with •OH and the formation kinetics of persistent PFCAs.
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Affiliation(s)
- Jonathan Zweigle
- Environmental Analytical Chemistry, Center for Applied Geoscience, University of Tübingen, Schnarrenbergstraße 94-96, Tübingen 72076, Germany
| | - Boris Bugsel
- Environmental Analytical Chemistry, Center for Applied Geoscience, University of Tübingen, Schnarrenbergstraße 94-96, Tübingen 72076, Germany
| | - Markus Schmitt
- Environmental Analytical Chemistry, Center for Applied Geoscience, University of Tübingen, Schnarrenbergstraße 94-96, Tübingen 72076, Germany
| | - Christian Zwiener
- Environmental Analytical Chemistry, Center for Applied Geoscience, University of Tübingen, Schnarrenbergstraße 94-96, Tübingen 72076, Germany
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6
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Duan P, Gao S, Lei J, Li X, Hu X. Electrochemical oxidation of ceftazidime with graphite/CNT-Ce/PbO 2-Ce anode: Parameter optimization, toxicity analysis and degradation pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114436. [PMID: 32259720 DOI: 10.1016/j.envpol.2020.114436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 02/11/2020] [Accepted: 03/21/2020] [Indexed: 06/11/2023]
Abstract
In this work, the electrochemical degradation of antibiotic ceftazidime has been studied using a novel rare earth metal Ce and carbon nanotubes codoped PbO2 electrode. A competitively high oxygen evolution potential (2.4 V) and enhanced catalytic surface area were obtained, evidence by LSV and CV electrochemical characterization. The G/CNT-Ce/PbO2-Ce electrode possessed a more compact structure and a smaller grain size than the other PbO2 and Ce-PbO2 electrodes, exhibiting a prolonged service lifetime, evidence by accelerated lifespan test and recycling degradation experiment. As electrolysis time reached 120 min, the removal efficiency of ceftazidime and TOC arrived at 100.0% and 54.2% respectively in 0.05 M Na2SO4 solution containing 50 mg⋅L-1 ceftazidime. The effect of applied current density, pH value, initial ceftazidime concentration and chloride contents on the degradation performance were systematically evaluated. The results demonstrated that electrochemical oxidation of ceftazidime over the G/CNT-Ce/PbO2-Ce electrode was highly effective, and the mineralization rate was greatly improved, compared with pristine PbO2 electrode. Considering the toxicity was increased after 30 min electrolysis, the intermediates were quantitatively investigated through HPLC-MS, GC-MS and IC technology. According to the identified products, a reaction mechanism has been proposed and pyridine and aminothiazole were detected with concentration from approximately 1 to 3 mg⋅L-1, which were regarded as toxic byproducts during electrooxidation. Further electrocatalyzing by ring cleavage reaction and complete mineralization to CO2, NO3- and NH4+ was proposed, which demonstrated the G/CNT-Ce/PbO2-Ce electrode exhibited high efficiency for ceftazidime removal in mild conditions.
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Affiliation(s)
- Pingzhou Duan
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shiheng Gao
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jiawei Lei
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiang Li
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiang Hu
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
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7
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Huang L, Li D, Liu J, Yang L, Dai C, Ren N, Feng Y. Construction of TiO 2 nanotube clusters on Ti mesh for immobilizing Sb-SnO 2 to boost electrocatalytic phenol degradation. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122329. [PMID: 32126423 DOI: 10.1016/j.jhazmat.2020.122329] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/15/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
An efficient Sb-doped SnO2 electrode featuring superior electrocatalytic characteristic and long stability was constructed by adopting clustered TiO2 nanotubes-covered Ti mesh as substrate (M-TNTs-SnO2). Compared with the electrodes prepared with mere Ti mesh or Ti plate grew with TiO2 nanotube, the M-TNTs-SnO2 exhibited higher TOC removal (99.97 %) and mineralization current efficiency (44.0 %), and longer accelerated service lifetime of 105 h for electrochemical degradation of phenol. The enhanced performance was mainly ascribed to the introduction of mutually self-supported TiO2 nanotube clusters in different orientations. Such unique structure not only favored a compact and smooth surface of catalyst layer which improved the stability of electrode by reinforcing the binding force between substrate and catalyst layer, but also increased the loading capacity for catalysts, leading to 1.5-2.2 times higher of ·OH generation, the main active species for indirect electrochemical oxidation of phenol. Meanwhile, the transverse electron transfer from TiO2 nanotube to catalyst layer was possibly achieved to further prompt the generation of ·OH. This study may provide a feasible option to design of efficient electrodes for electrocatalytic degradation of organic pollutants.
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Affiliation(s)
- Linlin Huang
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Da Li
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Junfeng Liu
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lisha Yang
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Changchao Dai
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nanqi Ren
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yujie Feng
- State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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8
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Chao HR, Que DE, Aquino AC, Gou YY, Tayo LL, Lin YH, Tsai MH, Hsu FL, Lu IC, Lin SL, Srikhao N, Shy CG, Huang KL. Toxicity assessment of electrochemical advanced oxidation process-treated groundwater from a gas station with petrochemical contamination. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:473. [PMID: 32607767 DOI: 10.1007/s10661-020-08393-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
Electrochemical advanced oxidation process (EAOP) is known for its efficient and fast degradation of organic pollutants in polluted water treatment. In this study, the EAOP using a boron-doped diamond (BDD) anode was applied to treat two-season groundwater samples collected from four sampling wells (GS1 to GS4) with petrochemical contaminants including methyl tert-butyl ether (MTBE), benzene, toluene, chlorobenzene, total organic compounds (TOC), and total petroleum hydrocarbons (TPH) at a gas station in southern Taiwan. Moreover, toxicity tests (ATP, p53, and NF-κB bioassays) were performed to evaluate the biological responses of raw and EAOP-treated groundwater. Results show that the concentrations of chlorobenzene before and after EAOP treatment were all below its method detection limit. High degradation efficiencies were observed for MTBE (100%), benzene (100%), toluene (100%, except that of GS2 in the first season), TPH (94-97%, except that of GS4 in the first season), and TOC (85-99%). Cell viability for both the raw groundwater (81.2 ± 13.5%) and EAOP-treated samples (84.7 ± 11.7%) as detected using the ATP bioassay showed no significant difference (p = 0.715). A mean reduction in the DNA damage (739 to 165 ng DOX-equivalency L-1 (ng DOX-EQ. L-1)) and inflammatory response levels (460 to 157 ng TNFα-equivalency L-1 (ng TNFα-EQ. L-1)) were observed for EAOP-treated samples subjected to p53 and NF-κB bioassays. Overall, the significances of the average degradation efficiency, DNA damage, and inflammatory response before and after groundwater with EAOP treatment was observed to be significant (p < 0.05). p53 and NF-κB bioassays might be applied to assess ecotoxic risk in the environment.
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Affiliation(s)
- How-Ran Chao
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan.
- Institute of Food Safety Management, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan.
| | - Danielle E Que
- Department of Environmental Engineering, National Cheng Kung University, Tainan City, 701, Taiwan
| | - Alisha C Aquino
- School of Chemical, Biological and Materials Engineering and Sciences, Mapua University, Muralla St., Intramuros, 1002, Manila, Philippines
| | - Yan-You Gou
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan
| | - Lemmuel L Tayo
- School of Chemical, Biological and Materials Engineering and Sciences, Mapua University, Muralla St., Intramuros, 1002, Manila, Philippines
| | - Yi-Hsien Lin
- Department of Plant Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan
| | - Ming-Hsien Tsai
- Department of Child Care, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan
| | - Fu-Lin Hsu
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan
| | - I-Cheng Lu
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan
| | - Sheng-Lun Lin
- Department of Civil Engineering and Geomatics, Cheng Shiu University, Kaohsiung, 83347, Taiwan
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 83347, Taiwan
- Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung, 833, Taiwan
| | - Natwat Srikhao
- Department of Chemical Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - Cherng-Gueih Shy
- Department of Radiology, Pingtung Christian Hospital, Pingtung City, Pingtung, 900, Taiwan
| | - Kuo-Lin Huang
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County, 912, Taiwan.
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9
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Removal of chemical oxygen demand and ammonia nitrogen from lead smelting wastewater with high salts content using electrochemical oxidation combined with coagulation–flocculation treatment. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116233] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Wang X, Xu R, Feng S, Yu B, Chen B. α(β)-PbO2 doped with Co3O4 and CNT porous composite materials with enhanced electrocatalytic activity for zinc electrowinning. RSC Adv 2020; 10:1351-1360. [PMID: 35494685 PMCID: PMC9047324 DOI: 10.1039/c9ra08032e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/16/2019] [Indexed: 11/30/2022] Open
Abstract
The high energy consumption during zinc electrowinning is mainly caused by the high overpotential of the oxygen evolution for Pb–Ag alloys with strong polarization. The preparation of new active energy-saving materials has become a very active research field, depending on the synergistic effects of active particles and active oxides. In this research, a composite material, α(β)-PbO2, doped with Co3O4 and CNTs on the porous Ti substrate was prepared via one-step electrochemical deposition and the corresponding electrochemical performance was investigated in simulated zinc electrowinning solution. The composite material showed a porous structure, finer grain size and larger electrochemical surface area (ECSA), which indicated excellent electrocatalytic activity. Compared with the Pb–0.76 wt% Ag alloy, the overpotential of oxygen evolution for the 3D-Ti/PbO2/Co3O4–CNTs composite material was decreased by about 452 mV under the current density of 500 A m−2 in the simulated zinc electrowinning solution. The decrease in the overpotential of oxygen evolution was mainly ascribed to the higher ECSA and lower charger transfer resistance. Moreover, it showed the lowest self-corrosion current density of 1.156 × 10−4 A cm−2 and may be an ideal material for use in zinc electrowinning. 3D-Ti/PbO2–Co3O4–CNTs composite electrode was fabricated through galvanostatic electrodepositon, which shows outstanding electrocatalytic activity to OER in harsh media (50 g L−1 Zn2+ + 150 g L−1 H2SO4).![]()
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Affiliation(s)
- Xuanbing Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
- Kunming University of Science and Technology
- Kunming 650093
- China
- Faculty of Metallurgical and Energy Engineering
| | - Ruidong Xu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
- Kunming University of Science and Technology
- Kunming 650093
- China
- Faculty of Metallurgical and Energy Engineering
| | - Suyang Feng
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
- Kunming University of Science and Technology
- Kunming 650093
- China
- Faculty of Metallurgical and Energy Engineering
| | - Bohao Yu
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
| | - Buming Chen
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
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11
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Baluchová S, Taylor A, Mortet V, Sedláková S, Klimša L, Kopeček J, Hák O, Schwarzová-Pecková K. Porous boron doped diamond for dopamine sensing: Effect of boron doping level on morphology and electrochemical performance. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.135025] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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He Y, Lin H, Guo Z, Zhang W, Li H, Huang W. Recent developments and advances in boron-doped diamond electrodes for electrochemical oxidation of organic pollutants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.056] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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13
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Yang N, Yu S, Macpherson JV, Einaga Y, Zhao H, Zhao G, Swain GM, Jiang X. Conductive diamond: synthesis, properties, and electrochemical applications. Chem Soc Rev 2019; 48:157-204. [DOI: 10.1039/c7cs00757d] [Citation(s) in RCA: 236] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review summarizes systematically the growth, properties, and electrochemical applications of conductive diamond.
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Affiliation(s)
- Nianjun Yang
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
| | - Siyu Yu
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
| | | | - Yasuaki Einaga
- Department of Chemistry
- Keio University
- Yokohama 223-8522
- Japan
| | - Hongying Zhao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Guohua Zhao
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | | | - Xin Jiang
- Institute of Materials Engineering
- University of Siegen
- Siegen 57076
- Germany
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14
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Li D, Wang S, Tian Y, Ma H, Ma C, Fu Y, Dong X. Preparation and Photoelectrocatalytic Performance of Ti/PbO
2
Electrodes Modified with Ti
4
O
7. ChemistrySelect 2018. [DOI: 10.1002/slct.201703181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Dunchao Li
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Shuai Wang
- The 18th Research Institute of China Electronics Technology Group Corporation, Tianjin, P.R. China
| | - Yihua Tian
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Hongchao Ma
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Chun Ma
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Yinghuan Fu
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
| | - Xiaoli Dong
- School of light industry&chemical engineeringDalian Polytechnic University, No.1 Qinggongyuan, Ganjinzi District, Dalian, P.R. China
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15
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Shen J, Chen D, Zhao W, Zhang WW, Zhou H. Study on the Preparation and Characterizations of an Improved Porous Ti/TiO
2
/CdS‐CNT/C
3
N
4
Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue. ChemistrySelect 2018. [DOI: 10.1002/slct.201703066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jia Shen
- School of Chemical and Environmental EngineeringShanghai Institute of Technology Shanghai 201418 China
| | - Donghui Chen
- School of Chemical and Environmental EngineeringShanghai Institute of Technology Shanghai 201418 China
| | - Wei Zhao
- School of Chemical and Environmental EngineeringShanghai Institute of Technology Shanghai 201418 China
| | - Wen wen Zhang
- School of Chemical and Environmental EngineeringShanghai Institute of Technology Shanghai 201418 China
| | - Huipin Zhou
- School of Chemical and Environmental EngineeringShanghai Institute of Technology Shanghai 201418 China
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16
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Lee CH, Lim YK, Lee ES, Lee HJ, Park HD, Lim DS. Boron-doped diamond nanowire array electrode with high mass transfer rates in flow-by operation. RSC Adv 2018; 8:11102-11108. [PMID: 35541555 PMCID: PMC9078987 DOI: 10.1039/c8ra01005f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/12/2018] [Indexed: 11/21/2022] Open
Abstract
We fabricated a boron-doped diamond nanowire (BDDNW) array electrode via soft lithography and metal-assisted chemical etching (MACE) of Si to provide a highly promoted effective surface area and increased mass transport during the electrochemical oxidation process. The effects of aligning the BDDNW on the electrochemical oxidation performance and the current efficiency of the electrode in phenol oxidation were examined. Although the effective surface area of the BDDNW array with an aligned nanowire configuration was smaller than that of the BDDNW with a random nanowire configuration, the BDDNW array electrode exhibited a higher mass transfer coefficient, resulting in a better performance in the removal of phenol. The enhanced mass transport exhibited by the BDDNW array electrode also greatly enhanced the chemical oxygen demand (COD) and current efficiency. Furthermore, because of its excellent oxidation performance, the BDDNW array electrode also exhibited much lower energy consumption during the phenol oxidation process. We fabricated a boron-doped diamond nanowire (BDDNW) array electrode via lithography and metal-assisted chemical etching (MACE) to provide a highly promoted surface area and increased mass transport during the electrochemical oxidation process.![]()
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Affiliation(s)
- Choong-Hyun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Young-Kyun Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Eung-Seok Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Hyuk-Joo Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Dae-Soon Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
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17
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Electrochemical degradation of spent tributyl phosphate extractant by a boron-doped diamond anode. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5635-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Electrochemical Oxidation of EDTA in Nuclear Wastewater Using Platinum Supported on Activated Carbon Fibers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14070819. [PMID: 28754016 PMCID: PMC5551257 DOI: 10.3390/ijerph14070819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/12/2017] [Accepted: 07/18/2017] [Indexed: 11/16/2022]
Abstract
A novel Pt/ACF (Pt supported on activated carbon fibers) electrode was successfully prepared with impregnation and electrodeposition method. Characterization of the electrodes indicated that the Pt/ACF electrode had a larger effective area and more active sites. Electrochemical degradation of ethylenediaminetetra-acetic acid (EDTA) in aqueous solution with Pt/ACF electrodes was investigated. The results showed that the 3% Pt/ACF electrode had a better effect on EDTA removal. The operational parameters influencing the electrochemical degradation of EDTA with 3% Pt/ACF electrode were optimized and the optimal removal of EDTA and chemical oxygen demand (COD) were 94% and 60% after 100 min on condition of the electrolyte concentration, initial concentration of EDTA, current density and initial value of pH were 0.1 mol/L, 300 mg/L, 40 mA/cm² and 5.0, respectively. The degradation intermediates of EDTA in electrochemical oxidation with 3% Pt/ACF electrode were identified by gas chromatography-mass spectrum (GC-MS).
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Lee CH, Lee ES, Lim YK, Park KH, Park HD, Lim DS. Enhanced electrochemical oxidation of phenol by boron-doped diamond nanowire electrode. RSC Adv 2017. [DOI: 10.1039/c6ra26287b] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We fabricated a boron-doped diamond nanowire (BDDNW) electrode via metal-assisted chemical etching (MACE) of Si and electrostatic self-assembly of nanodiamond (ESAND) seeding to provide a large surface area during the phenol oxidation.
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Affiliation(s)
- Choong-Hyun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Eung-Seok Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Young-Kyun Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Kang-Hee Park
- School of Civil, Environmental and Architectural Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Dae-Soon Lim
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
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He Y, Huang W, Chen R, Zhang W, Lin H, Li H. Anodic oxidation of aspirin on PbO 2 , BDD and porous Ti/BDD electrodes: Mechanism, kinetics and utilization rate. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.09.036] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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He Y, Dong Y, Huang W, Tang X, Liu H, Lin H, Li H. Investigation of boron-doped diamond on porous Ti for electrochemical oxidation of acetaminophen pharmaceutical drug. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.11.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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