Journal
NANOSCALE
Volume 5, Issue 19, Pages 9150-9155Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr02413j
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Funding
- Natural Science Foundation for Distinguished Young Scientists of Jiangsu Province [BK2012008]
- Hong Kong, Macao and Taiwan Science & Technology Cooperation Program of China [2012DFH50120]
- National Basic Research Program of China [2010CB934700]
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Developing new methods to improve the photocatalytic activity of graphitic carbon nitride (g-C3N4) for hydrogen (H-2) evolution has attracted intensive research interests. Here, we report that the g-C3N4 exhibits photocatalytic activity for H-2 evolution from pure water. And, the activity is dramatically improved by loading highly dispersed conductive polymer nanoparticles. The H-2 evolution rate increases up to 50 times for g-C3N4 with 1.5 wt% polypyrrole (PPy) nanoparticles on the surface. The reaction proceeding in a pure water system excludes the need for sacrificial agents. The role of the highly conductive PPy in enhancing H-2 evolution is as a surface junction to increase the number of photoinduced electrons, and to facilitate electron transfer to the interface.
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