Abstract
This paper reported a one-step synthesis of Ag2S/Ag@MoS2 nanocomposites and its applications in the surface-enhanced Raman scattering (SERS) detection and photocatalytic degradation of organic pollutants. The nanocomposites were well characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), cyclic voltammograms (CV), the Brunauer-Emmett-Teller (BET), and Fourier transforms infrared spectra (FTIR). The AgNPs were uniformly dispersed on the MoS2 nanosheets and the particle size of the AgNPs was about 10–30 nm. These Ag2S/Ag@MoS2 nanocomposites offered sensitive SERS signals for the detection of R6G with the limit of detections as low as 10−10 M. The photocatalytic activity of the composite catalyst was studied by the degradation of methylene blue (MB) dye under light illumination. The apparent rate constant of MB degradation for the obtained catalyst could reach 6.6 × 10−2 min−1, indicating that the novel Ag2S/Ag@MoS2 nanocomposites can be explored for organic pollutant’s detection and degradation.
One-step synthesis of Ag2S/Ag@MoS2 nanocomposites for SERS and photocatalytic applications
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This work was financed by the National Natural Science Foundation of China (Grant No. 5140003), Anhui Provincial Natural Science Foundation (1508085QE105), Scientific Research Fund of Anhui Provincial Education Department (KJ2016A791, KJ2017A030), Anhui Province Institute of High Performance Rubber Materials and Products, and The 211 Project of Anhui University.
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Wu, J., Zhou, Y., Nie, W. et al. One-step synthesis of Ag2S/Ag@MoS2 nanocomposites for SERS and photocatalytic applications. J Nanopart Res 20, 7 (2018). https://doi.org/10.1007/s11051-017-4106-1
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DOI: https://doi.org/10.1007/s11051-017-4106-1