期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 270, 期 -, 页码 508-517出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.05.075
关键词
Triangular silver nanoplates; Cotton fabrics; SERS; p-Aminothiophenol; Carbaryl
资金
- National Natural Science Foundation of China [51503164]
- Scientific Research Project of Hubei Provincial Department of Education, China [Q20171611]
- Wuhan Textile University Research Fund [142078003, ZD5Y5201712]
- Collaborative Innovation Plan for Key Technology of Eco-Ramie Industry of Hubei Province, China (E JIAO KE HAN) [8]
A flexible and effective substrate for surface-enhanced Raman spectroscopy (SEAS) detection has been developed by dip coating of triangular silver nanoplates (TSNPs) onto cotton fabrics. The morphology, chemical composition and crystalline structure of the coated cotton fabrics were characterized by scanning electron microscope (SEM), ultraviolet-visible spectroscopy (UV-vis), X-ray photoelectron spectroscopic (XPS) and X-ray diffraction (XRD), respectively. These results confirmed the presence and well dispersion of the TSNPs on the surface of cotton fabrics. p-aminothiophenol (PATP) has been used as the probe molecule to evaluate the performance of the coated cotton fabrics as a flexible SERS substrate, and the PATP in diluted solutions can be detected with the concentration as low as 10(-8) M. The results indicate that the TSNPs-coated fabrics exhibit sensitive SERS signals with excellent reproducibility and stability. The flexible SERS substrate has been demonstrated to rapidly detect carbaryl pesticides on fruits.
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