High‐performance composite imprinted sensor based on the surface enhanced Raman scattering for selective detection of 2,6‐dichlorophenol in water

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EarlyView Article

  • Published: Nov 9, 2017
  • Author: Hongji Li, Zirun Wang, Xiaonan Wang, Jiaqi Jiang, Jiahong Zheng, Yongsheng Yan, Chunxiang Li
  • Journal: Journal of Raman Spectroscopy


In this study, a novel detection method based on the technique of surface enhanced Raman scattering (SERS) was presented. Firstly, the homogeneous Ag particles were prepared and CdTe quantum dots were modified on the surface of Ag particles to synthesize the Ag/CdTe heterostructures as the SERS substrate. Then 2,6‐DCP was chosen as the template molecule and combined the technique of atom transfer radical polymerization to prepare Ag/CdTe/molecular imprinted polymers (MIPs). Through characterization analysis, it was proved that the Ag/CdTe/MIPs exhibited splendid SERS properties and selectivity. Under the optimal condition, it was presented good linear relationship (R2 = 0.96) between the Raman signal (at 1596 cm−1) and the concentration of the templates, and the detection limit was determined as 10−9 mol L−1. It was envisaged that the sensitivity of SERS coupled with the selective properties of MIPs could induce a promising chemosensor for practical applications.

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