Ti_(4)O_(7)阳极材料制备改性及其在电化学水处理中的应用研究进展  

Research Progress in Preparation and Modification of Ti4O7 Anode Material and Application in Electrochemical Water Treatment

作　　者：荆晓生 郭思远 李昕圆 王雪 徐浩[1,3] 延卫 Jing Xiaosheng;Guo Siyuan;Li Xinyuan;Wang Xue;Xu Hao;Yan Wei(Department of Environmental Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Zhongsheng Environmental Technology Development Co.,Ltd.,Xi’an 710049,China;Research Institute of Xi’an Jiaotong University,Hangzhou 311200,China)

机构地区：[1]西安交通大学环境科学与工程系,陕西西安710049 [2]中圣环境科技发展有限公司,陕西西安710000 [3]浙江西安交通大学研究院,浙江杭州311200

出　　处：《稀有金属》2024年第8期1163-1176,共14页Chinese Journal of Rare Metals

基　　金：国家自然科学基金项目(52270078);陕西省自然科学基础研究计划项目(2021JM-012);浙江省基础公益研究计划项目(LZY21E080003);西安交通大学基本科研业务费(xjh012020037)资助。

摘　　要：在“双碳”目标的背景下,电化学水处理技术作为一种高效安全的废水处理技术,对阳极材料性能提出了更高要求。常见的碳、贵金属和钛基体金属氧化物等电极均存在成本高、稳定性差和重金属溶出造成的二次污染等缺陷,开发新型阳极材料势在必行。亚氧化钛材料因其独特的晶格结构具备了优异阳极所需的良好性能:高导电率、高催化活性、强理化稳定性、耐腐蚀、成本低、使用寿命长等。为进一步推广应用,对亚氧化钛Ti_(4)O_(7)阳极材料的结构性能进行了介绍,总结了Ti_(4)O_(7)粉末电极的制备与改性方法及其在电化学水处理领域应用的研究进展,提出了目前在制备工艺、性能提升和应用拓展方面面临的挑战,并对未来的研究方向和应用前景提出展望。With the rapid development of China's industry,water pollution in various fields is becoming more and more serious.Traditional water treatment methods have been difficult to meet the environmental requirements.Electrochemical water treatment technology,as an effective means to build a"carbon neutral"water treatment technology model and realize green development of water treatment technology,has developed rapidly in recent years.Among them,electro catalytic oxidation technology,as one of electrochemical water treatment technologies,directly degrades organic pollutants by electrode reaction under the action of external electric field,or degrades organic pollutants by using electrodes to generate a large number of strong oxidizing free radicals.This technology is mainly aimed at organic wastewater with high concentration,difficult biodegradation and high toxicity,and has the advantages of green,safety,high efficiency,low energy consumption,small secondary pollution,etc.As the core of electro catalytic oxidation technology,the selection of anode is very important.Common electrodes such as carbon,precious metals and titanium based metal oxides have defects such as high cost,poor stability and weak catalytic ability.For example,metal electrodes and titanium based metal oxide electrodes have surface metal element dissolution,causing certain potential safety hazards;the catalytic performance of carbon electrode fluctuates greatly,and the yield of hydroxyl radicals on the surface of Sb/SnO_(2) electrodes and Ir/Ru/Ta electrodes are not high,so the catalytic ability needs to be improved The preparation cost of precious metal electrode and boron doped diamond electrode is high,which is not conducive to large-scale use economically.Therefore,it is imperative to develop new anode materials.The research showed that titanium sub-oxide materials had unique physical and electrochemical properties such as high conductivity,superior chemical stability,wide electrochemical stability potential window,etc.Among them,Ti_(4)O_(7) materi

关 键 词：电化学水处理 阳极材料 亚氧化钛 电极制备与改性 

分 类 号：TF803.21[冶金工程—有色金属冶金]