| Ti3C2TX/Au@Pt纳米花复合膜的制备及其无酶H2O2传感器的应用 |
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| 基金项目:国家自然科学基金面上项目(31772068);山东省自然科学基金重大基础研究项目(ZR2018ZC0126) |
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| 中文摘要:基于二维过渡金属碳化物(MXene)-Ti3C2Tx材料的导电性与Au@Pt纳米花的催化活性，组装了一种用于超灵敏和快速检测H2O2含量的Ti3C2Tx/Au@Pt纳米花无酶传感器。通过发射扫描电镜和X-射线衍射对制备的Ti3C2Tx进行表征。结果表明Ti3C2Tx材料表现出特有的手风琴结构，Ti3C2Tx/Au@Pt为以Au粒子为中心，Pt粒子环绕周围组成蒲公英状纳米球。研究了H2O2在Ti3C2Tx/Au@Pt纳米花修饰玻碳电极上的循环伏安曲线和时间电流曲线，结果显示该修饰电极检测H2O2具有线性范围良好(0.03~1 100 μmol/L)、灵敏度高(检出限可达0.02 μmol/L)、抗干扰性和再现性好等优点。与传统滴定法相比，该新型无酶传感器能在复杂环境下快速准确检出H2O2含量。 |
| 中文关键词:二维过渡金属碳化物(MXene)；Ti3C2Tx Au@Pt纳米花；H2O2 无酶传感器 |
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| Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection |
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| Abstract:Based on the conductivity of two dimensional transition metal carbide (MXene)-Ti3C2Tx and catalytic activity of Au@Pt nanoflowers,a Ti3C2Tx/Au@Pt nanoflowers enzyme free sensor was assembled for the ultrasensitive and rapid detection of H2O2 content.The prepared Ti3C2Tx was characterized by emission scanning electron microscopy and X-ray diffraction spectrometry.Results showed that the Ti3C2Tx material exhibited a unique accordion structure, while the Ti3C2Tx/Au@Pt are centered on Au particles and surrounded by Pt particles to form the surrouding dandelion structure.The cyclic voltammogram and time current curve of H2O2 on the Ti3C2Tx/Au@Pt modified electroded were studied.Results showed that the modified electrode based on Ti3C2Tx loaded Au@Pt nanoflowers presented good linear relationship for H2O2(0.03-1 100 μmol/L),high sensitivity(detection limit:0.02 μmol/L),good anti-interference and reproducibility.Compared with the traditional titration method,the new enzyme free sensor could be more rapidly and accurately used in the detection of H2O2 in a complex environment. |
| Key Words:two-dimensional transition metal carbide(MXene) Ti3C2Tx Au@Pt nanoflowers H2O2 enzyme free sensor |
| 引用本文：王广现，姚瑶，褚光雷，张慧，郭业民.Ti3C2TX/Au@Pt纳米花复合膜的制备及其无酶H2O2传感器的应用[J].分析测试学报,2019,38(10):1254-1259. |
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