1
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Wang J, Duan X, Ren Y. Efficient electrochemical degradation of ceftazidime by Ti 3+ self-doping TiO 2 nanotube-based Sb-SnO 2 nanoflowers as an intermediate layer on a modified PbO 2 electrode. CHEMOSPHERE 2024; 356:141853. [PMID: 38582161 DOI: 10.1016/j.chemosphere.2024.141853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/12/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024]
Abstract
Ceftazidime (CAZ) is an emerging organic pollutant with a long-lasting presence in the environment. Although some PbO2 materials exhibit degradation capabilities, inefficient electron transport in the substrate layer and the problem of electrode stability still limit their use. Here, an interfacial design in which TiO2 nanotube arrays generate Ti3+ self-doping oxide substrate layers and highly active 3D Sb-SnO2 nanoflowers-like interlayers was used to prepare PbO2 anodes for efficient degradation of CAZ. Interestingly, after implementing Ti3+ self-doping in the PbO2 anode base layer and introducing 3D nanoflowers-like structures, the capacity for •OH generation increased significantly. The modified electrode exhibited 5-fold greater •OH generation capacity compared to the unmodified electrode, and a 2.7-fold longer accelerated electrode lifetime. The results indicate that interfacial engineering of the base and intermediate layers of the electrodes can improve the electron transfer efficiency, promote the formation of •OH, and extend the anode lifetime of the activated CAZ system.
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Affiliation(s)
- Jian Wang
- Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Faculty of Frontier Science and Technology, Ningxia University, Yinchuan, 750021, PR China
| | - Xiaoxiao Duan
- Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Faculty of Frontier Science and Technology, Ningxia University, Yinchuan, 750021, PR China.
| | - Yongsheng Ren
- Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Faculty of Frontier Science and Technology, Ningxia University, Yinchuan, 750021, PR China.
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2
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Li Y, Ma H, Li Q, Yan G, Guo S. One-step synthesis of Pt-Nd co-doped Ti/SnO 2-Sb nanosphere electrodes used to degrade nitrobenzene. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:4528-4538. [PMID: 38102431 DOI: 10.1007/s11356-023-31406-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023]
Abstract
Ti/SnO2-Sb electrodes possess high catalytic activity and efficiently degrade nitrobenzene (NB); however, their low service life limits their wide application. In this study, we used one-step hydrothermal synthesis to successfully prepare Pt-Nd co-doped Ti/SnO2-Sb nanosphere electrodes. Scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were applied to characterize the surface morphology, microstructure, and chemical composition of the electrodes, respectively. The electrochemical activity and stability of the electrodes were characterized via linear sweep and cyclic voltammetry, electrochemical impedance spectroscopy, and an accelerated service life test; their performance for NB degradation was also studied. An appropriate amount of Pt-Nd co-doping refined the average grain size of SnO2 and formed a uniform and compact coating on the electrode surface. The oxygen evolution potential, total voltammetric charge, and electron transfer resistance of the Ti/SnO2-Sb-Nd-Pt electrodes were 1.88 V, 3.77 mC/cm2, and 11.50 Ω, respectively. Hydroxy radical was the main active radical species during the electrolytic degradation of nitrobenzene with Ti/SnO2-Sb-Nd-Pt. After Pt-Nd co-doping, the accelerated service life of the electrodes was extended from 8.0 min to 78.2 h (500 mA/cm2); although the NB degradation rate decreased from 94.1 to 80.6%, the total amount of theoretical catalytic degradation of NB in the effective working time increased from 17.4 to 8754.1 mg/cm2. These findings reveal good application potential for the electrodes and provide a reference for developing efficient and stable electrode materials.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Hairun Ma
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Qianwei Li
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Guangxu Yan
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Shaohui Guo
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum-Beijing, Beijing, 102249, China.
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3
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Yang C, Li XY, Lin L. Fabrication of a SnO 2-Sb nano-pin array anode for efficient electrocatalytic oxidation of bisphenol A in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130444. [PMID: 36435040 DOI: 10.1016/j.jhazmat.2022.130444] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Electrocatalytic oxidation is a promising technology for eliminating bio-recalcitrant organic pollutants; however, the low efficiency and poor durability of the anodes hinder its practical application. Herein, a SnO2-Sb nano-pin array (NPA) was fabricated on a RuO2-based dimensionally stable anode (DSA) via a new hydrothermal-electrodeposition route to prepare a novel anode (SnO2-Sb NPA). Compared with the conventional SnO2-Sb/DSA and SnO2-Sb/Ti anodes, the new SnO2-Sb NPA anode possessed twice the electroactive surface area and a higher electron transfer efficiency for electrocatalytic reactions. The SnO2-Sb NPA anode exhibited more than twice the rate constant of bisphenol A (BPA) degradation (0.026 min-1) and a 120 times prolonged service life in comparison to the conventional SnO2-Sb/Ti anode. Moreover, the SnO2-Sb NPA anode performed well in removing BPA from actual wastewater. The mechanism of electrocatalytic degradation involves direct oxidation via electron transfer through the nano-pin surface and oxidation by in situ generated •OH radicals.
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Affiliation(s)
- Chao Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Xiao-Yan Li
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China; Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
| | - Lin Lin
- Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
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4
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Ren Q, Yang R, Li J, Yan W, Wang Z, Wu A. Fabrication of Ru/Ir doped TiO
2
electrode for electrocatalytic degradation of phenol. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Qiaolin Ren
- College of Chemical Engineering and Technology Taiyuan University of Technology Taiyuan China
| | - Ruirui Yang
- College of Chemical Engineering and Technology Taiyuan University of Technology Taiyuan China
| | - Junying Li
- College of Chemical Engineering and Technology Taiyuan University of Technology Taiyuan China
| | - Wenjun Yan
- Analytical Instrumentation Center, Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan China
| | - Zhongde Wang
- College of Chemical Engineering and Technology Taiyuan University of Technology Taiyuan China
| | - Ailian Wu
- College of Chemical Engineering and Technology Taiyuan University of Technology Taiyuan China
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5
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Tang L, Li M, Jiang J, Ge Y, Tang T, Xue S. Regulating the Anodic Catalytic Selectivity in Electro-Fenton Process for Enhanced Pollutant Removal. ACS ES&T ENGINEERING 2022; 2:2002-2013. [DOI: 10.1021/acsestengg.2c00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
- Lu Tang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
| | - Mengli Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
| | - Jun Jiang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
| | - Yun Ge
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
| | - Tian Tang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, PR China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, Hunan 410083, PR China
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6
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Wu F, Yang ZQ, Sun W, Chen X, Qi H, Wang LD. Electrochemical Properties of Ti/SnO 2-Sb-Ir Electrodes Doped with a Low Iridium Content for the Oxygen Evolution Reaction in an Acidic Environment. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01012] [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]
Affiliation(s)
- Fei Wu
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Zheng-Qing Yang
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Wen Sun
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
- Dalian Key Laboratory of Flue Gas Purification and Waste Heat Utilization, Dalian 116024, China
| | - Xu Chen
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Hui Qi
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Li-Da Wang
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
- Dalian Key Laboratory of Flue Gas Purification and Waste Heat Utilization, Dalian 116024, China
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7
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Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment. Catalysts 2022. [DOI: 10.3390/catal12060618] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
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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8
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Ti/SnO2-Sb2Ox-TiO2 Electrodeposited from Methanesulfonate Electrolytes: Preparation, Properties, and Performance. COATINGS 2022. [DOI: 10.3390/coatings12030366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, Ti/SnO2-Sb2Ox-TiO2 electrodes were produced using a sol-enhanced electrodeposition technique from methanesulfonate electrolytes. The surface microstructures of Ti/SnO2-Sb2Ox-TiO2 were observed, and their phase constituents were determined. The surface features were analyzed by X-ray photoelectron spectroscopy. Linear sweep voltammetry and degradation tests were also conducted to determine the degradation performance. The results show that the addition of TiO2 sol affects the microstructures of Ti/SnO2-Sb2Ox-TiO2 electrodes, while a uniform coating surface can be obtained at a proper sol concentration in electrolytes. Adding TiO2 sol also causes deep oxidation of Sb and generates more adsorbed oxygen on the electrode surface. The favorable surface features and the well-dispersed TiO2 in the coatings of 10 mL/L TiO2 modified Ti/SnO2-Sb2Ox-TiO2 electrodes award them the best electrocatalytic performance, and their uniform coating surface prolongs the electrode service life.
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9
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Ahmadi A, Zarei M, Hassani A, Ebratkhahan M, Olad A. Facile synthesis of iron(II) doped carbonaceous aerogel as a three-dimensional cathode and its excellent performance in electro-Fenton degradation of ceftazidime from water solution. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119559] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Akbari N, Nabizadeh Chianeh F, Arab A. Efficient electrochemical oxidation of reactive dye using a novel Ti/nanoZnO–CuO anode: electrode characterization, modeling, and operational parameters optimization. J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01634-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Ojha A, Tiwary D, Oraon R, Singh P. Degradations of endocrine-disrupting chemicals and pharmaceutical compounds in wastewater with carbon-based nanomaterials: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:30573-30594. [PMID: 33909248 DOI: 10.1007/s11356-021-13939-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/11/2021] [Indexed: 06/12/2023]
Abstract
Although water occupies 75% of the earth's surface, only 0.0067% of the total water is available for human activities. These statistics further decline with the population growth and consequent multiplication in the amount of annual waste produced. The demand for clean and safe drinking water has always been a prime concern in the global scenario. Among various types of waste materials, endocrine-disrupting chemicals (EDCs) and pharmaceutical effluents have become a constant threat to the aquatic ecosystem and possess challenges worldwide. Endocrine-disrupting chemicals (EDCs) are a mixed group of emerging concern chemicals with the ability to mimic the mechanisms of biosynthesis, transport, and metabolism of hormones. These chemicals pose various health threats such as early puberty, infertility, obesity, diabetes, reproductive disorders, cancerous tumors, and related disorders (immune cells, hormones' activity, and various organs). On the other hand, pharmaceutical compounds such as antibiotics also harm the natural environment, human health, and soil microbiology. Their low concentration, ranging from a few ng/L to μg/L, gives rise to a micro-pollution phenomenon, which makes it difficult to detect, analyze, and degrade in wastewater treatment plants. Activated carbons (ACs) and other adsorbents, including naturally occurring materials (wood, keratin) are considered as nanomaterials (NMs) reference for the separation of organic pollutants. It is generally acknowledged that mass-transfer phenomena control sorption kinetics at the liquid/solid interface, with retention controlled by the sorbent/sorbate properties. Therefore, the type of interaction (strong or weak van der Waals forces) and the hydrophilic/hydrophobic properties of the adsorbent are two crucial factors. Besides, EDCs and pharmaceutical compound sorption on such kinds of nanoporous solids depend on both the molecule size and charge density. The applications of nanomaterials on non-conservative methods, like advanced oxidation processes or AOPs (e.g., photocatalysis and Fenton reaction), are contemplated as more apt in comparison to conservative technology like reverse osmosis nanofiltration, and adsorption, etc. One of the reasons is that AOPs generate free radicals (hydroxyls), which are strong oxidants for the demineralization of organic compounds and the extreme case that hydroxyl radicals can attack any kinds of pollutants with the generation of only water and carbon dioxide as final products. AOPs may imply the use of NMs as either catalysts or photocatalysts, which improve the selective removal of the target pollutant. Therefore, various literature reviews have revealed that there is a timely need to upgrade the efficiency of the remediation approaches to protect the environment against EDCs and pharmaceuticals adequately. There is currently a lack of definitive risk assessment tools due to their complicated detection and associated insufficiency in the health risk database. Hence, our present review focuses on applying carbon-based nanomaterials to remove EDCs and pharmaceuticals from aqueous systems. The paper covers the effect of these pollutants and photocatalytic methods for treating these compounds in wastewater, along with their limitations and challenges, plausible solutions, and prospects of such techniques.
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Affiliation(s)
- Ankita Ojha
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Dhanesh Tiwary
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Ramesh Oraon
- Department of Nanoscience and Technology (DNST), Central University of Jharkhand (CUJ) Cheri-Manatu, Kanke, Ranchi, Jharkhand, 835222, India
| | - Pardeep Singh
- Department of Environmental Science, PGDAV College, University of Delhi, New Delhi, 110067, India.
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12
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Duan P, Chen D, Hu X. Tin dioxide decorated on Ni-encapsulated nitrogen-doped carbon nanotubes for anodic electrolysis and persulfate activation to degrade cephalexin: Mineralization and degradation pathway. CHEMOSPHERE 2021; 269:128740. [PMID: 33139044 DOI: 10.1016/j.chemosphere.2020.128740] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
In this study, bamboo-shaped carbon nanotubes exhibiting high nitrogen content and Ni encapsulation (Ni@NCNT) were effectively synthesized by a simple pyrolysis method. The catalytic peroxydisulfate activation for cephalexin (CPX) degradation was investigated using the prepared material. SnO2 was further decorated and fabricated on the anode material (SnO2/Ni@NCNT) for electrochemical degradation of CPX in an aqueous solution. Transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy indicated that the SnO2 nanoparticles were uniformly distributed on the surface of Ni@NCNT. Electrochemical characterization employing cyclic voltammetry and linear sweep voltammetry demonstrated that SnO2/Ni@NCNT displayed higher oxygen evolution potential and electrocatalytic activity than Ni@NCNT. Mineralization of CPX in wastewater was performed using electrolysis coupled with persulfate oxidation. The analysis revealed a synergistic strengthening effect. The electropersulfate oxidation resulted in higher total organic carbon (TOC) removal (70.3%) than the sum of electrooxidation (48.1%) and persulfate oxidation (9.2%) toward CPX. This phenomenon might result from the regeneration of sulfate radicals (SO4•-) on the anode and complementary oxidation by SO4•- and OH. Persulfate oxidation alone was shown to result in low TOC removal, although CPX was mostly degraded. Additionally, the CPX degradation pathway involving electropersulfate oxidation was proposed and it is indicated that CPX molecules were completed decomposed by the examination of short chain acids, mineralized ions, and ecotoxicity evolution indicated that the antibiotic was completely degraded. This study provides a new approach for the design and preparation of novel electrode materials and electrochemical degradation facilities for the removal of pollutants via persulfate activation.
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Affiliation(s)
- Pingzhou Duan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China; Chinese Research Academy of Environmental Sciences, Beijing, 100012, PR China
| | - Dadi Chen
- Beijing Municipal Research Institute of Environmental Protection, Beijing, 100037, PR China
| | - Xiang Hu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
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13
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Spinel CuxCo1−xMn2O4 electrode for effectively cleaning organic wastewater via electrocatalytic oxidation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118024] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Duan P, Jia X, Lin J, Xia R. Electro-oxidation of ceftazidime in real municipal wastewater using PbO2–Ce and SnO2–Sb electrodes: influence of electrolyte and degradation pathway. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01482-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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15
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Lei J, Duan P, Liu W, Sun Z, Hu X. Degradation of aqueous cefotaxime in electro-oxidation - electro-Fenton -persulfate system with Ti/CNT/SnO 2-Sb-Er anode and Ni@NCNT cathode. CHEMOSPHERE 2020; 250:126163. [PMID: 32109696 DOI: 10.1016/j.chemosphere.2020.126163] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/05/2020] [Accepted: 02/08/2020] [Indexed: 06/10/2023]
Abstract
Due to the potential threatening of antibiotics in aqueous environment, a novel electro-oxidation (EO) - electro-Fenton (EF) -persulfate (PS) system with the addition of peroxydisulfate and Fe2+ was installed for the degradation of cefotaxime. Ti/CNT/SnO2-Sb-Er with an ultra-high oxygen evolution potential (2.15 V) and enhanced electrocatalytic surface area was adopted as anode. The OH production and electrode stability test demonstrated great improvement in the electrochemical performances. Ni@NCNT cathode was tested with higher H2O2 generation by the presence of nitrogen functionalities due to the acceleration of electron transfer of O2 reduction. Experiment results indicated CNT and ErO2 modification increased the molecular and TOC removal of cefotaxime. Coupling processes of EO-EF and EO-PS both resulted in shorter electrolysis time for complete cefotaxime removal, however, the mineralization ability of EO-PS process was lower than EO-EF, which might result from the immediate vanishing of PS. Thus, a further improved treatment EO-EF-PS system achieved an 81.6% TOC removal towards 50 mg L-1 cefotaxime after 4 h electrolysis, under the optimal working condition Fe2+ = PS = 1 mM. The influence of current density and initial concentration on the performance of all processes was assessed. Methanol and tert-butanol were added in the system as OH and SO4- scavengers, which illustrating the mechanism of EO-EF-PS oxidizing process was the result of the two free radicals. Major intermediates were deduced and the degradation pathway of cefotaxime was analyzed. This research provides a potential coupling process with high antibiotic removal efficiency and effective materials for practical uses.
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Affiliation(s)
- Jiawei Lei
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Pingzhou Duan
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Weijun Liu
- Shanxi Jinhuankeyuan Environmental Resources Technology Co., Ltd, Taiyuan, Shanxi, 030024, PR China
| | - Zhirong Sun
- College of Environmental & Energy Engineering, Beijing University of Technology, Beijing, 100124, PR China
| | - Xiang Hu
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
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16
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Electrochemical Degradation of Reactive Black 5 using two-different reactor configuration. Sci Rep 2020; 10:4482. [PMID: 32161357 PMCID: PMC7066175 DOI: 10.1038/s41598-020-61501-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/18/2020] [Indexed: 11/27/2022] Open
Abstract
Novel Sb-doped SnO2 ceramic electrodes sintered at different temperatures, are applied to the degradation of Reactive Black 5 in both divided and undivided electrochemical reactors. In the undivided reactor the discoloration of the solution took place via the oxidation of RB5 dye, without the corresponding reduction in the chemical oxygen demand for the ceramic electrodes. However, in the divided one, it was possible to achieve the discoloration of the solution while at the same time decreasing the chemical oxygen demand through the ·OH-mediated oxidation, although the chemical oxygen demand degradation took place at a slower rate.
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17
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Liu W, Duan P, Hu X, Gao J, Zhou F. Fabrication of Efficient Nano-MnOx/ACF Particle Electrodes and their Application in the Electrooxidation of m-Cresol in the 3-D Electrode System. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04234] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weijun Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Shanxi Jinhuankeyuan Environmental Resources Technology Co., Ltd., Taiyuan, Shanxi 030024, China
| | - Pingzhou Duan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiang Hu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianjun Gao
- Shanxi Jinhuankeyuan Environmental Resources Technology Co., Ltd., Taiyuan, Shanxi 030024, China
| | - Fentao Zhou
- Shanxi Jinhuankeyuan Environmental Resources Technology Co., Ltd., Taiyuan, Shanxi 030024, China
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18
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Pan Z, Yu F, Li L, Song C, Yang J, Wang C, Pan Y, Wang T. Electrochemical microfiltration treatment of bisphenol A wastewater using coal-based carbon membrane. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115695] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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19
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Degradation of ciprofloxacin using electrochemical oxidation by Ti/nanoSnO2-MWCNT electrode: Optimization and modelling through central composite design. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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Li X, Duan P, Lei J, Sun Z, Hu X. Fabrication of Ti/TiO2/SnO2-Sb-Cu electrode for enhancing electrochemical degradation of ceftazidime in aqueous solution. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113231] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Liu W, Hu X, Sun Z, Duan P. Electrochemical modification of activated carbon fiber as 3-D particle electrodes: characterization and enhancement for the degradation of m-cresol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:16433-16448. [PMID: 30980374 DOI: 10.1007/s11356-019-04979-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Commercial activated carbon fiber (ACF) has been employed as particle electrodes to degrade aqueous m-cresol in 3-D electrode systems. To enhance the electrooxidation performance, three types of new ACF modification modes (anodic oxidation, cathodic reduction, and aqueous oxidation with concentrated HNO3) were introduced in this paper. These pretreated samples were characterized by N2 adsorption, scanning electron microscopy (SEM), cyclic voltammetry (CV), temperature-programmed desorption mass (TPD-MS), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR). It was revealed that the two new modification methods could efficiently modify the surface morphology as well as the chemical property. Eight types of surface oxygen groups (SOGs) were identified on the surface of ACF, and the types and amount of SOGs might be related to the oxidation effect of ACF on the 3-D electrodes. The effect and mechanism of these SOGs on electrooxidation performance were discussed with the aid of the frontier molecular orbital theory. It was demonstrated that the H2O2-·OH reaction mechanism was improved in the 3-D electrode system and the mechanism was elucidated.
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Affiliation(s)
- Weijun Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- Research Center for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing, 100029, People's Republic of China
| | - Xiang Hu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
- Research Center for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing, 100029, People's Republic of China.
| | - Zhirong Sun
- College of Environmental & Energy Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Pingzhou Duan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- Research Center for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing, 100029, People's Republic of China
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22
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Yu H, Zhang X, Zhao M, Zhang L, Dong H, Yu H. Norfloxacin degradation by a green carbon black-Ti/SnO2-Sb electrochemical system in saline water. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.04.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Xu S, Zheng J, Wu Z, Liu M, Wang Z. Degradation of p-chloroaniline using an electrochemical ceramic microfiltration membrane with built-in electrodes. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.186] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Duan P, Hu X, Ji Z, Yang X, Sun Z. Enhanced oxidation potential of Ti/SnO 2-Cu electrode for electrochemical degradation of low-concentration ceftazidime in aqueous solution: Performance and degradation pathway. CHEMOSPHERE 2018; 212:594-603. [PMID: 30172041 DOI: 10.1016/j.chemosphere.2018.08.123] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/22/2018] [Accepted: 08/23/2018] [Indexed: 06/08/2023]
Abstract
In order to develop an efficient electrode to remove pharmaceutical and personal care products from wastewater, copper and antimony doped Ti/SnO2 electrode were prepared by thermal decomposition. Electrochemical characterization was undertaken on Ti/SnO2-Cu using cyclic voltammetry and linear sweep voltammetry, indicating an ultra-high 2.1 V of oxygen evolution potential, better stability, and superior corrosion resistance rather than traditional Ti/SnO2-Sb electrode. Competitive degradation experiments showed more efficient removal rate was achieved on Ti/SnO2-Cu electrode, which could remove more than 90% ceftazidime within 60 min. The microstructure and crystal orientation of the modified electrodes were investigated by scanning electron microscopy, which indicated that the crystal of the Ti/SnO2-Cu electrode grew in more porous and uniform condition, covered with closely arranged layers of the coating. X-ray photoelectron spectroscopy and X-ray diffractions suggested that Cu2O was successfully coated on the Ti/SnO2-Cu electrode surface. The operating parameters of electrochemical degradation process were also investigated, including current density, initial concentration, electrode distance, stirring rate and supporting electrolyte. Consequently, the intermediate products of electrochemical degradation were monitored by liquid chromatography-mass spectrometry and a major degradation pathway was proposed.
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Affiliation(s)
- Pingzhou Duan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Research Centre for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing 100029, China
| | - Xiang Hu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Research Centre for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing 100029, China.
| | - Zongyuan Ji
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Research Centre for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing 100029, China
| | - Xiaoming Yang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Research Centre for Environmental Pollution Control and Resource Reuse Engineering of Beijing City, Beijing 100029, China
| | - Zhirong Sun
- College of Environmental & Energy Engineering, Beijing University of Technology, Beijing 100124, China.
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25
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Zhang Y, Wang F, Ou P, Zhu H, Lai Y, Zhao Y, Shi W, Chen Z, Li S, Wang T. High efficiency and rapid degradation of bisphenol A by the synergy between adsorption and oxidization on the MnO 2@nano hollow carbon sphere. JOURNAL OF HAZARDOUS MATERIALS 2018; 360:223-232. [PMID: 30119017 DOI: 10.1016/j.jhazmat.2018.08.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
In this research, a novel efficiency MnO2@Nano hollow carbon sphere (MnO2@NHCS) nanocomposite was prepared by one-pot hydrothermal reaction with KMnO4 solution. The adsorption and oxidization performance of MnO2@NHCS were assessed by degradation of bisphenol A (BPA) at different conditions. The effect of dosage of MnO2@NHCS, pH, initial concentration of BPA, temperature and humic acid were investigated systematically. Moreover, the characterizations of MnO2@NHCS were measured by a series of techniques, such as XRD, FESEM, HRTEM, TGA and XPS. Notably, hollow structure of nano carbon sphere was still retained with uniform MnO2 nanosheets covered. The results show that the removal rate of BPA was 95.3% within 10 min and BPA can be almost decomposed in 30 min under the optimal conditions. Additionally, the MnO2@NHCS remained stable and had a high regeneration efficiency (more than 85%) after 3 cycles (360 min). The reaction intermediates/products of oxidation of BPA were analyzed and the possible degradation pathways of BPA were proposed. These research results demonstrate that the MnO2@NHCS is a fleet and efficient material for BPA degradation in aqueous environment.
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Affiliation(s)
- Yimei Zhang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China; Laboratory of Environment Remediation and Function Material, Suzhou Research Institute of North China Electric Power University, Suzhou, Jiangsu, 215213, China.
| | - Fei Wang
- Laboratory of Environment Remediation and Function Material, Suzhou Research Institute of North China Electric Power University, Suzhou, Jiangsu, 215213, China
| | - Ping Ou
- Suzhou University of Science and Technology, Suzhou, Jiangsu, 215009, China
| | - Hao Zhu
- Laboratory of Environment Remediation and Function Material, Suzhou Research Institute of North China Electric Power University, Suzhou, Jiangsu, 215213, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Center of Technology and Equipment for Fine Particles Pollution Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yuxian Lai
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
| | - Yalong Zhao
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
| | - Weilin Shi
- Suzhou University of Science and Technology, Suzhou, Jiangsu, 215009, China
| | - Zhuang Chen
- Laboratory of Environment Remediation and Function Material, Suzhou Research Institute of North China Electric Power University, Suzhou, Jiangsu, 215213, China
| | - Shuai Li
- Laboratory of Environment Remediation and Function Material, Suzhou Research Institute of North China Electric Power University, Suzhou, Jiangsu, 215213, China
| | - Tong Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Center of Technology and Equipment for Fine Particles Pollution Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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