Journal
CHEMSUSCHEM
Volume 7, Issue 9, Pages 2654-2658Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402180
Keywords
electron microscopy; hydrogen; nanostructures; photochemistry; template synthesis
Funding
- National Natural Science Foundation of China [51101070]
- National Key Basic Research, Development Program [2010CB631001]
- Program for New Century Excellent Talents in University of the Ministry of Education of China [NCET-09-0431]
- Jilin Province Science and Technology Development Program [201101061]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [3C1137282416]
- Jilin University Fundamental Research Funds
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Potassium-modified graphitic carbon nitride (K-g-C3N4) nano-sheets are synthesized by a facile KCl-template method that holds the advantage of easy removal of residual template. A combination of XRD, X-ray photoelectron spectroscopy, and inductively coupled plasma analyses are utilized to characterize the obtained resultant K-g-C3N4 architectures, which are composed of nanosheets of variable thickness (< 10 nm). Photocatalytic hydrogen evolution experiments under visible light irradiation showed that K-g-C3N4 nanosheets have high photocatalytic activities (up to about thirteen times higher than that of pure g-C3N4) as well as good stability (no reduction in activity within 16 h); both features emanate from their unique structural characteristics. These results illustrate the viability of this methodology for the facile synthesis of efficient heterogeneous photocatalysts for potential commercial applications.
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