Journal
JOURNAL OF MATERIALS RESEARCH
Volume 31, Issue 15, Pages 2252-2260Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2016.234
Keywords
heterojunction; photodeposition; photocatalytic
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Funding
- Nature Science Foundation of Zhejiang Province [LY16B030002]
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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 approximate to 3.8 and approximate to 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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