Magnetic ordered mesoporous carbon composites incorporating Ag nanoparticles as SERS substrate for enrichment and detection of trace mercaptan compounds
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Fe3O4 magnetic nanoparticles and Ag nanoparticles reduced by reductant were incorporated on ordered mesoporous carbon to form magnetic ordered mesoporous carbon composites incorporating Ag nanoparticles (magnetic OMC–Ag). The prepared magnetic OMC–Ag as a surface-enhanced Raman scattering (SERS) substrate not only exhibited a clearly enhanced effect but also showed enrichment ability for the detection of 4-nitrothiphenol. Ag nanoparticles-incorporated magnetic carbon composites as SERS substrate displayed Raman enhancement phenomenon for the detection of 4-nitrothiphenol and showed high stability.
KeywordsSERS Magnetic OMC Ag nanoparticles Enrichment Carbon 4-Nitrothiphenol
This work was financially supported by the General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (2016IK227), the Project of Inspection and Quarantine of Shanghai (HK015-2016), and the National Natural Science Foundation of China (21707034).