Journal
NANOSCALE
Volume 8, Issue 4, Pages 2249-2259Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr06346a
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Funding
- Key Laboratory of Fuel Cell Technology of Guangdong Province
- Natural Science Foundation of Guangdong Province [S2013020013091]
- National Natural Science Foundation of China [21571064, 21371060]
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Ag nanoparticles were deposited on the surface of g-C3N4 by a chemical reduction method to increase visible-light absorption via the localized surface plasmon resonance effect, resulting in the reduced recombination of photo-generated electron-holes and enhanced photocatalytic activity. The Ag/g-C3N4 composite with a Ag loading of 3 wt% has the optimum photoactivity that is almost 3.6 and 3.4 times higher than pure g-C3N4 and the same photocatalysis system which has been reported, respectively. Fluorescein was introduced as a photosensitizer and H-2 evolution soared to 2014.20 mu mol g(-1) h(-1) and the rate is even about 4.8 times higher than that of the 3 wt% Ag/g-C3N4 composite. The chemical structure, composites, morphologies and optical properties of the obtained products are well-characterized by XRD, FTIR, TEM, EDS, XPS and UV-Vis DRS. Meanwhile, the photocatalyst exhibits high stability and reusability.
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