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Visible-light responsive plasmonic Ag2O/Ag/g-C3N4 nanosheets with enhanced photocatalytic degradation of Rhodamine B

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Abstract

Visible-light responsive plasmonic Ag2O/Ag/g-C3N4 nanosheets (NS) were successfully prepared by a simple and green photodeposition method. The obtained composites were characterized by XRD, Fourier transform infrared, transmission electron microscopy, UV-vis, and the photoluminescence (PL) results indicated that the Ag2O/Ag/g-C3N4 NS composites showed better photoabsorption performance than g-C3N4 due to the surface plasmon resonance effect of Ag nanoparticles. Meanwhile, the composite exhibited excellent photocatalytic activities, which was ∼3.8 and ∼3.0 times higher than those of bulk g-C3N4 and pure g-C3N4 NS, respectively. Moreover, the as-prepared composites showed a high structural stability in the photodegradation of Rhodamine B. A possible photocatalytic and charge separation mechanism was suggested based on the PL spectra and the active species trapping experiment.

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ACKNOWLEDGMENT

This work was supported by grants from the Nature Science Foundation of Zhejiang Province (LY16B030002).

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Correspondence to Ying Wu or Tinghua Wu.

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Fu, S., He, Y., Wu, Q. et al. Visible-light responsive plasmonic Ag2O/Ag/g-C3N4 nanosheets with enhanced photocatalytic degradation of Rhodamine B. Journal of Materials Research 31, 2252–2260 (2016). https://doi.org/10.1557/jmr.2016.234

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  • DOI: https://doi.org/10.1557/jmr.2016.234

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