Journal
NANOTECHNOLOGY
Volume 31, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab59f6
Keywords
graphitic carbon nitride; thermal treatment; high yield; band structure
Funding
- JSPS [16H06439]
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- Dynamic Alliance for Open Innovations Bridging Human, Environment and Materials, the Cooperative Research Program of 'Network Joint Research Center for Materials and Devices'
- China Scholarship Council
Ask authors/readers for more resources
The bulk graphitic carbon nitride (CN) suffers from low specific surface area, which limits its practical application for air purification. Here, we reported a facile post-thermal treatment to break bulk CN into nanosheets whose specific surface areas increased from 13.6 m(2) g(-1) to 68.0 m(2) g(-1). The yield of CN nanosheets reached up to 67%, and its photocatalytic decomposition of NOx activity was about 3.0 times higher than that of bulk CN. Moreover, the CN nanosheets obtained at 550 degrees C with higher specific surface area (113.9 m(2) g(-1)) displayed lower photocatalytic activity than that obtained at 500 degrees C with lower specific surface area (68.0 m(2) g(-1)), which was attributed to its lower valence band. This study illustrates that many factors including specific surface area and band structure could affect the performance of photocatalysts so that it is necessary to take account of various factors. Moreover, the facile and high yield thermal treatment provides the foundation for further large-scale industrial applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available