Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 165, Issue -, Pages 428-437Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2014.10.039
Keywords
Noble metal; Graphitic carbon nitride; Nanotubes; Hydrogen evolution; Organic pollutant degradation
Funding
- National Natural Science Foundation of China [51208248, 51238002, 51272099, 51238001, 51278092, 21366024, 21165013]
- Science and Technology Major Bidding Project of Jiangxi Province, China [Gan Ke Fa Ji Zi [2010] 217]
- Youth Science Foundation of Jiangxi Province, China [20114BAB213015]
- Natural Science Foundation of Jiangxi Provincial Department of Education, China [GJJ12456, GJJ14515]
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A series of platinum nanoparticles-deposited carbon nitride nanotubes (Pt/C3N4 NTs) was fabricated by a simple one-step solvothermal treatment strategy using graphite carbon nitride (g-C3N4) and chloroplatinic acid (H2PtCl6 center dot 6H(2)O) as precursors. The morphology, porosity, phase and chemical structure, and optical and electronic properties of Pt/C3N4 NTs were well characterized. Compared with bulk g-C3N4, the as-prepared Pt/C3N4 NTs exhibited efficient photocatalytic activity toward hydrogen evolution from water-splitting and aqueous p-chlorophenol degradation under visible-light irradiation (lambda > 420 nm) as a result of their unique tubular nanostructure and the synergic effect of Pt nanoparticles. Subsequently, the activities of simultaneous hydrogen evolution with organic pollutant degradation were also tested using as-prepared Pt/C3N4 NTs under the representative organic pollutants p-chlorophenol, p-nitrophenol, methylene blue, or rhodamine B as electron donors. Finally, the photocatalytic mechanisms in three different photocatalytic systems were discussed. (C) 2014 Elsevier B.V. All rights reserved.
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