Journal
JOURNAL OF LUMINESCENCE
Volume 206, Issue -, Pages 660-665Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2018.10.080
Keywords
g-C3N4 nanosheets; Photoluminescence; Large-size; Few-layer
Categories
Funding
- National Natural Science Foundation of China [51672106]
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Large-size ultrathin g-C3N4 nanosheets have attracted extensive attention for their peculiar properties and promising practical application. Temporarily, g-C3N4 nanosheets are mostly obtained through thermal oxidation etching of bulk g-C3N4 which generally introduces defects including oxygen doping impurities. Here, we construct high-quality g-C3N4 nanosheets with thickness of about 2 nm and large lateral size up to 4 mu m by hydrogen atom etching of bulk g-C3N4. The as constructed large-size ultrathin g-C3N4 nanosheets exhibit an enhanced photoluminescence with a quantum yield about two times that of the bulk g-C3N4. This work employs a facile method to prepare large-size g-C3N4, providing great guidance to the synthesis of other materials with similar structure.
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