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

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...

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Main Authors: Siyuan Guo, Zhicheng Xu, Wenyu Hu, Duowen Yang, Xue Wang, Hao Xu, Xing Xu, Zhi Long, Wei Yan
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/12/6/618
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author Siyuan Guo
Zhicheng Xu
Wenyu Hu
Duowen Yang
Xue Wang
Hao Xu
Xing Xu
Zhi Long
Wei Yan
author_facet Siyuan Guo
Zhicheng Xu
Wenyu Hu
Duowen Yang
Xue Wang
Hao Xu
Xing Xu
Zhi Long
Wei Yan
author_sort Siyuan Guo
collection DOAJ
description 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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spelling doaj.art-9e5ab1f4d7b74588a253b0813bfcdf112023-11-23T15:59:26ZengMDPI AGCatalysts2073-43442022-06-0112661810.3390/catal12060618Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater TreatmentSiyuan Guo0Zhicheng Xu1Wenyu Hu2Duowen Yang3Xue Wang4Hao Xu5Xing Xu6Zhi Long7Wei Yan8Department of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaShandong Shenxin Energy Saving and Environmental Protection Technology Co., Ltd., Industrial Recirculating Water Treatment Engineering Technology Centre of Zaozhuang City, Tengzhou 277531, ChinaHenan Longxing Titanium Industry Technology Co., Ltd., Jiyuan 454650, ChinaDepartment of Environmental Science Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaTo 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.https://www.mdpi.com/2073-4344/12/6/618electrocatalytic oxidationanode materialsMagnéli phasetitanium oxidewastewater treatment
spellingShingle Siyuan Guo
Zhicheng Xu
Wenyu Hu
Duowen Yang
Xue Wang
Hao Xu
Xing Xu
Zhi Long
Wei Yan
Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
Catalysts
electrocatalytic oxidation
anode materials
Magnéli phase
titanium oxide
wastewater treatment
title Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
title_full Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
title_fullStr Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
title_full_unstemmed Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
title_short Progress in Preparation and Application of Titanium Sub-Oxides Electrode in Electrocatalytic Degradation for Wastewater Treatment
title_sort progress in preparation and application of titanium sub oxides electrode in electrocatalytic degradation for wastewater treatment
topic electrocatalytic oxidation
anode materials
Magnéli phase
titanium oxide
wastewater treatment
url https://www.mdpi.com/2073-4344/12/6/618
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