甲基苯丙胺的电化学催化降解及机理研究  

Study on Electrochemical-Catalytic Degradation of Methamphetamine and Its Mechanism

作　　者：魏春生[1] 张丹凤 吴晓亮[3] 刘伟华[3] 赵焕[3] 刘建国[3] WEI Chunsheng;ZHANG Danfeng;WU Xiaoiang;LIU Weihua;ZHAO Huan;LIU Jianguo(Criminal Investigation Police University of China,Shenyang 110854,China;Liaoning Institute of Science and Technology,Benxi 117004,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]中国刑事警察学院,辽宁沈阳110854 [2]辽宁科技学院,辽宁本溪117004 [3]中国科学院金属研究所,辽宁沈阳110016

出　　处：《水处理技术》2024年第2期69-73,共5页Technology of Water Treatment

基　　金：辽宁省自然基金资助项目(2020-MS-132);中央高校基本科研业务费项目(3242020010);辽宁省自然科学基金面上项目(2022-MS-366)。

摘　　要：甲基苯丙胺(Methamphetamine,METH)作为一种兴奋剂类毒品,正在全球范围内蔓延,研发高效、环保、低成本的销毁技术十分必要。本文设计了电化学催化降解METH的方法,通过扫描电镜(SEM)和元素分析对电极形貌结构及成分进行了分析,并利用气相色谱(GC)和循环伏安法(CV)对METH电化学降解过程和机制进行了探讨。结果表明,钛基钌铱电极(DSA电极)表面的裂纹结构,大大提高了电极活性面积,对METH的降解效果优于碳纤维电极和Pt电极。电解条件优化后,DSA电极对METH的电化学降解效果显著,METH基本完全降解。METH的降解以间接氧化为主,降解反应遵循一级反应动力学。电化学催化可以快速高效的降解METH,且环境友好,是对METH无害化处理的有效手段。Methamphetamine(METH)is spreading globally as a stimulant drug,and it is necessary to develop efficient,environmentally friendly and low-cost destruction technologies.In this paper,an electrochemical catalytic degradation method for METH was designed,the morphology and composition of the electrode were analyzed by scanning electron microscopy(SEM)and elemental analysis,and the electrochemical degradation process and mechanism of METH were discussed by gas chromatography(GC)and cyclic voltammetry(CV).The results show that the crack structure on the surface of titanium-based ruthenium-iridium electrode(DSA electrode)greatly improves the active area of the electrode,and the degradation effect of METH is better than that of carbon fiber electrode and Pt electrode.After the electrolysis conditions are optimized,the electrochemical degradation effect of METH by DSA electrode is satisfied and METH is almost completed degraded.The degradation of METH is dominated by indirect oxidation,and the degradation reaction follows the first-order reaction kinetics.Electrochemical catalysis can degrade METH quickly and efficiently,and is environmentally friendly,which is an effective means for harmless treatment of METH.

关 键 词：甲基苯丙胺 电化学降解 DSA电极 降解机理 

分 类 号：O646[理学—物理化学]