Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection

王广现; 姚瑶; 褚光雷; 张慧; 郭业民

doi:doi：10.3969/j.issn.1004-4957.2019.10.015

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Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection

- Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection
- Vol. 38, Issue 10, Pages: 1254-1259(2019)
- 作者机构：
  
  山东理工大学农业工程与食品科学学院
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- DOI：doi：10.3969/j.issn.1004-4957.2019.10.015
  CLC：
- Published：2019
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王广现, 姚瑶, 褚光雷, 张慧, 郭业民. Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection[J]. 2019, 38(10): 1254-1259.
DOI：

王广现, 姚瑶, 褚光雷, 张慧, 郭业民. Preparation of an Enzyme-free Ti3C2Tx/Au@Pt Nanoflowers Composite Sensor and Its Application in H2O2 Detection[J]. 2019, 38(10): 1254-1259. DOI： doi：10.3969/j.issn.1004-4957.2019.10.015.

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。

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.

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