Simple Synthesis of Multilayer‐shaped CeO2 Nanomaterial and its Electrochemical Detection of Clenbuterol,Electroanalysis

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Simple Synthesis of Multilayer‐shaped CeO2 Nanomaterial and its Electrochemical Detection of Clenbuterol
Electroanalysis ( IF 2.7 ) Pub Date : 2018-09-21 , DOI: 10.1002/elan.201800507
Xin Xiao _{1,

2} , YiHui Wang _{1,

3} , Wei Tan ₂ , HongJie Liu ₂ , YangYang Duan ₂ , XiaoBo Zhang _{1,

3} , DongEn Zhang _{1,

3,

4} , YouXiang Jiang _{1,

3} , Jie Wang _{1,

3} , JunYan Gong _{1,

3} , JuanJuan Ma _{1,

3} , Tao Yang _{1,

3} , ZhiWei Tong _{1,

3}

Affiliation

A novel multilayer‐shaped CeO₂ with obvious electrocatalytic activity was synthesized using a simple heat treatment method. The structure and morphology of the multilayer‐shaped CeO₂ were characterized by X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy. Clenbuterol, a kind of β‐agonist drugs, has recently become a serious issue to human body due to the illegal addition in the food additive for livestocks. The drug residue in the human body may cause muscular pain, cardiac palpitation, glaucoma, prostatitis, dizziness and and even death in old people. Therefore, the detection of clenbuterol (CLB) has a important significance. The as‐prepared CeO₂ was found to have unique electrocatalytic oxidation activities towards clenbuterol (CLB). The electrochemical sensor was constructed by fixing stable nafion‐modified multilayer‐shaped CeO₂ film on a glassy carbon electrode. Compared with the CeO₂‐modified electrode and the nafion‐modified electrode, the nafion‐modified multilayer‐shaped CeO₂ electrode showed better electrocatalytic performance for clenbuterol in HClO₄ solution. There was a good linear relationship between the oxidation peak current and the concentration of CLB between 0.39∼2.79 μmol/L, and the detection limit was 0.08 μmol/L (R=0.99). The nafion‐modified multilayer‐shaped CeO₂ electrode exhibited high stability and reproducibility.

中文翻译：

多层CeO2纳米材料的简单合成及其盐酸克仑特罗的电化学检测

采用简单的热处理方法合成了具有明显电催化活性的新型多层CeO ₂。通过X射线衍射，扫描电子显微镜和透射电子显微镜对多层CeO ₂的结构和形貌进行了表征。瘦肉精是一种β受体激动剂，最近由于对牲畜食品添加剂的非法添加而成为严重的人体问题。人体中残留的药物可能会导致肌肉疼痛，心lp，青光眼，前列腺炎，头晕，甚至导致老年人死亡。因此，克仑特罗（CLB）的检测具有重要的意义。准备好的CeO ₂被发现对克仑特罗（CLB）具有独特的电催化氧化活性。电化学传感器是通过将稳定的nafion改性多层CeO ₂薄膜固定在玻璃碳电极上而构建的。与CeO ₂修饰电极和nafion修饰电极相比，nafion修饰的多层CeO ₂电极在盐酸HClO ₄溶液中对盐酸克伦特罗表现出更好的电催化性能。氧化峰电流与CLB的浓度在0.39〜2.79μmol/ L之间具有良好的线性关系，检出限为0.08μmol/ L（R = 0.99）。nafion改性的多层CeO ₂电极具有很高的稳定性和可重复性。

更新日期：2018-09-21

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