铝基非晶合金电化学法降解偶氮染料研究  

Study on degradation of azo dyes with Al-based amorphous alloy under electrochemical method

作　　者：徐晓辰 邱克强[1] XU Xiaochen;QIU Keqiang(School of Material Science and Engineering,Shenyang University of Technology,Shenyang 110870,China;Mechanical and Power Engineering College,Yingkou Institute of Technology,Yingkou 115014,China)

机构地区：[1]沈阳工业大学材料科学与工程学院,辽宁沈阳110870 [2]营口理工学院机械与动力工程学院,辽宁营口115000

出　　处：《辽宁工程技术大学学报（自然科学版）》2022年第5期446-450,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省自然科学基金(2019ZD0373);辽宁省区域创新联合基金(2021YKLH18)

摘　　要：为解决晶态零价金属在水溶液中的耐蚀性差,降解过程中很大一部分零价金属因为被水腐蚀而失去降解活性的问题,采用铝基非晶合金作为催化剂,通过电化学法以Al_(86)Ni_(10)Y_(4)非晶合金为阳极、石墨为阴极,研究不同外界条件下对直接蓝染料的降解能力.研究结果表明:当pH为3,电流密度为6.1 mA/cm^(2)时,在20 min内脱色率达到95.22%.铝基非晶合金可以用于处理偶氮染料溶液,具有比相应晶态合金更好的耐蚀性,更难失去电子,在降解偶氮染料废水方面具有很大的应用前景.The corrosion resistance of crystalline zero valent metal in aqueous solution is generally poor,thus a large part of zero valent metal will be corroded by water during the degradation and the reactivity slows down quickly.To address this problem,this paper adopted Al-based amorphous alloys as catalysts in combination with electrochemical methods to achieve efficient degradation of wastewater,used single roll strip casting method to make Al_(86)Ni_(10)Y_(4)amorphous ribbons,and used electrochemical method with Al_(86)Ni_(10)Y_(4)amorphous alloy as anode and graphite as cathode to study the degradation ability of direct blue dye under different external conditions.The results showed that when pH value was 3 and current density was 6.1 mA/cm^(2),the decolorization rate reached 95.22%in 20 min.Al based amorphous alloys can be used for the treatment of alkaline azo dye solutions,which has better corrosion resistance than corresponding crystalline alloy and is more difficult to lose electrons.They hold promising application potential in degrading azo dye solutions.

关 键 词：铝基非晶 偶氮染料 电化学法 脱色率 降解效果 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TQ426[金属学及工艺—合金] X703[金属学及工艺—金属学]