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g-C3N4/Fe3O4 nanocomposites as a novel fluorescent probe for the detection of Cu2+

Authors
  • Wang, Shan1
  • Zhang, Fang1
  • Yi, Li1
  • Huan, Ruirui1
  • Kang, Nan1
  • 1 School of Chemistry and Chemical Engineering of Xianyang Normal University, Xianyang, 712000, People’s Republic of China , Xianyang (China)
Type
Published Article
Journal
Journal of Nanoparticle Research
Publisher
Springer-Verlag
Publication Date
Jun 04, 2020
Volume
22
Issue
6
Identifiers
DOI: 10.1007/s11051-020-04882-y
Source
Springer Nature
Keywords
License
Yellow

Abstract

A simple technique to prepare g-C3N4/Fe3O4 nanocomposites by electrostatic interaction has been demonstrated by carboxyl g-C3N4 nanosheets and Fe3O4 nanoparticles which contain amino groups. The nanocomposites were characterized by transmission electron microscopy and Fourier transform infrared spectroscopy. The emission of the g-C3N4/Fe3O4 nanocomposites was quenching when Cu2+ was detected and recovering after adding the EDTA solution. At the optimum conditions, the fluorescence intensity is proportional to the concentration of Cu2+ in the range of 0–8 × 10−5 mol/L. The linear regression equation is Y = − 16.87X + 0.6209, and the correlation coefficient is 0.998. The sensing system has good reproducibility when it is used to detect Cu2+. This sensor would be a common platform for detecting Cu2+ in the aqueous system.

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