SEMICONDUCTOR MATERIALS

Green preparation of Au nanoparticles for electrochemical detection of H2O2

Wenchao Wang1, , Ye Ji2, Yong Zhang2, Ziying Wang2 and Tong Zhang2, 3,

+ Author Affiliations

 Corresponding author: Wang Wenchao,Email:wwc7071@163.com;; ZhangTong,Email:zhangtong@jlu.edu.cn

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Abstract: A simple and green method for preparation of Au nanoparticles by reduction of HAuCl4 using carbon nanodots as the reducing agent is reported. The carbon nanodots were prepared by a green method as well, using hydrothermal treatment of grass. It is observed that Au nanoparticles show obvious electrochemical catalytic ability for reduction of hydrogen peroxide, leading to its application of a high-performance non-enzymatic hydrogen peroxide sensor. The hydrogen peroxide sensor based on Au nanoparticles was made, with the detection limit at 23 μ M and linear range between 0.1-160 mM.

Key words: nanoparticleselectrochemical detectioncarbon nanodotshydrogen peroxide sensor



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Fig. 1.  (a) The UV–vis spectrum of the aqueous dispersion of Au NPs and (b) XRD pattern of the Au NPs thus obtained.

Fig. 2.  TEM image of Au NPs.

Fig. 3.  (Color online) CVs of bare GCE and Au NPs/GCE in PBS 6.5 in the absence and in the presence of 1 mM H2O2.

Fig. 4.  (a) Typical steady-state response of the Au NPs/GCE to the successive injection of H2O2 into stirred N2 saturated 0.2 M PBS at pH 6.5 at the applied potential of 0:3 V. (b) The corresponding calibration plot for H2O2 detection.

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    Received: 03 June 2015 Revised: Online: Published: 01 January 2016

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      Wenchao Wang, Ye Ji, Yong Zhang, Ziying Wang, Tong Zhang. Green preparation of Au nanoparticles for electrochemical detection of H2O2[J]. Journal of Semiconductors, 2016, 37(1): 013003. doi: 10.1088/1674-4926/37/1/013003 W C Wang, Y Ji, Y Zhang, Z Y Wang, T Zhang. Green preparation of Au nanoparticles for electrochemical detection of H2O2[J]. J. Semicond., 2016, 37(1): 013003. doi: 10.1088/1674-4926/37/1/013003.Export: BibTex EndNote
      Citation:
      Wenchao Wang, Ye Ji, Yong Zhang, Ziying Wang, Tong Zhang. Green preparation of Au nanoparticles for electrochemical detection of H2O2[J]. Journal of Semiconductors, 2016, 37(1): 013003. doi: 10.1088/1674-4926/37/1/013003

      W C Wang, Y Ji, Y Zhang, Z Y Wang, T Zhang. Green preparation of Au nanoparticles for electrochemical detection of H2O2[J]. J. Semicond., 2016, 37(1): 013003. doi: 10.1088/1674-4926/37/1/013003.
      Export: BibTex EndNote

      Green preparation of Au nanoparticles for electrochemical detection of H2O2

      doi: 10.1088/1674-4926/37/1/013003
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      Project supported by the National Natural Science Foundation of China (No. 51202085), and the Open Project from State Key Laboratory of Transducer Technology (No. SKT1402).

      More Information
      • Corresponding author: Wang Wenchao,Email:wwc7071@163.com;; ZhangTong,Email:zhangtong@jlu.edu.cn
      • Received Date: 2015-06-03
      • Accepted Date: 2015-06-19
      • Published Date: 2016-01-25

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