Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (9): 1611.doi: 10.7503/cjcu20160401

• Analytical Chemistry • Previous Articles     Next Articles

Fluorescence Detection of Au(Ⅲ) Based on Carbon Nitride Nanoparticles

ZHUANG Qianfen1, CAO Wei1, WU Qi1, NI Yongnian1,2,*()   

  1. 1. College of Chemistry, Nanchang University, Nanchang 330031, China
    2. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Received:2016-06-06 Online:2016-09-10 Published:2016-08-23
  • Contact: NI Yongnian E-mail:ynni@ncu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21305061) and the Natural Science Foundation of Jiangxi Province, China(Nos.20151BAB213014, 20151BAB203021)

Abstract:

A fluorescence sensor for Au(III) detection was constructed on the basis of the fluorescence quenching of carbon nitride nanoparticles by Au(Ⅲ). The experimental results displayed that the Au(Ⅲ) sensor gave a linear range of 0.05—11.0 μmol/L with a detection limit(S/N=3) of 22.6 nmol/L. Moreover, the fluorescence sensor possessed a high selectivity for Au(Ⅲ) detection, and could be applied for Au(Ⅲ) detection in lake samples.

Key words: Carbon nitride, Au(Ⅲ) ion, Melamine, Fluorescence sensor

CLC Number: 

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