Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 44, Pages 11926-11930Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201407319
Keywords
chirality; graphitic carbon nitride; helical nanorods; optical activity; photocatalysis
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Funding
- National Basic Research Program of China [2013CB632405]
- National Natural Science Foundation of China [21033003, 21173043]
- State Key Laboratory of NBC Protection for Civilian [SKLNBC2013-04K]
- Specialized Research Fund for the Doctoral Program of Higher Education [20133514110003]
- Department of Education of Fujian Province in China
- National Science Fund for Distinguished Young Scholars
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Graphitic carbon nitride can be imprinted with a twisted hexagonal rod-like morphology by a nanocasting technique using chiral silicon dioxides as templates. The helical nanoarchitectures promote charge separation and mass transfer of carbon nitride semiconductors, enabling it to act as a more efficient photocatalyst for water splitting and CO2 reduction than the pristine carbon nitride polymer. This is to our knowledge a unique example of chiral graphitic carbon nitride that features both left-and right-handed helical nanostructures and exhibits unique optical activity to circularly polarized light at the semiconductor absorption edge as well as photoredox activity for solar-to-chemical conversion. Such helical nanostructured polymeric semiconductors are envisaged to hold great promise for a range of applications that rely on such semiconductor properties as well as chirality for photocatalysis, asymmetric catalysis, chiral recognition, nano-technology, and chemical sensing.
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