Silver Molecularly Imprinting Polymer for the Determination of p-Nitroaniline by Surface Enhanced Raman Scattering |
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| Authors: | Ya Zhang Kailimai Su Yingshuang Ha Weifeng Chen Chenghua Sun |
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| Institution: | 1. College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei, China;2. Department of Chemistry and Biotechnology, Faculty of Science Engineering &3. Technology, Swinburne University of Technology, Hawthorn, VIC, Australia |
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| Abstract: | Molecular imprinting and surface enhanced Raman scattering (SERS) were used to prepare a core-shell Ag@molecularly imprinting polymer (MIP) for the determination of p-nitroaniline. The obtained Ag@MIP exhibits a detection limit of 10?12 M, which demonstrates higher sensitivity toward p-nitroaniline than conventional approaches. In addition, the Ag@MIP shows good recyclability, and simultaneously offers better stability and high SERS activity for recognizing target molecules. To characterize the high SERS activity of the SERS-MIP hybrid material, a possible mechanism for the SERS substrate is proposed involving enhancement by the MIP. This study is expected to provide an alternative approach for the determination of p-nitroaniline in aqueous environments. |
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| Keywords: | Fourier-transform infrared (FT-IR) spectroscopy molecularly imprinting polymer (MIP) surface enhanced Raman scattering (SERS) scanning electron microscopy (SEM) X-ray diffraction (XRD) |
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