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Rapid thermal vapor condensation towards crystalline carbon nitride film with improved photoelectrochemical activity.
- Source :
- Journal of Physics D: Applied Physics; 10/24/2022, Vol. 55 Issue 44, p1-9, 9p
- Publication Year :
- 2022
-
Abstract
- Graphitic carbon nitride (g-CN), as an orderly structured polymer derivative, has been widely concerned for its photocatalytic ability due to its metal-free nature and unique properties. However, the photoelectrochemical (PEC) application of g-CN is still hindered by the difficulty of forming high-quality films with good uniformity and crystallinity. Herein, we studied the rapid thermal vapor condensation (RTVC) for growing g-CN films with improved PEC activity. The polycondensation and polymerization reactions of precursor melamine molecules under the optimized temperature 600 °C and calcination time 20 min resulted in better crystallinity of g-CN films. Remarkably, the growth of g-CN film based on the coalescence of unambiguous hexagonal nanosheets was observed, as corroborated by scanning electron microscopy and transmission electron microscopy. This novel RTVC method offers a fast and easy strategy for improving the crystallinity of g-CN films through controlling the thermal dynamics and kinetics of film growth from temperature and time. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00223727
- Volume :
- 55
- Issue :
- 44
- Database :
- Complementary Index
- Journal :
- Journal of Physics D: Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 159060490
- Full Text :
- https://doi.org/10.1088/1361-6463/ac8e15