期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 32, 期 5, 页码 6465-6474出版社
SPRINGER
DOI: 10.1007/s10854-021-05363-1
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资金
- National Natural Science Foundation of China [NSFC 41972261]
In this study, an efficient porous g-C3N4 nanosheet with N defect was successfully fabricated, showing enhanced degradation efficiency towards Eosin-Y and hydrogen evolution performance. The elevated photocatalytic activity was attributed to the synergism of porous nanosheet and N defect, which improved light harvesting and accelerated separation of photo-induced e(-) and h(+).
In this study, an efficient porous g-C3N4 nanosheet with N defect was successfully fabricated via a facile co-thermolysis method. The porous g-C3N4 nanosheet showed 96% degradation efficiency towards Eosin-Y within 100 min, which was about 1.48-fold higher than that of pure bulk g-C3N4. In addition, the modified porous g-C3N4 nanosheet exhibited the hydrogen evolution performance with the activity of 450 mu mol with 3 h, which was 5.29-fold higher than that of pure bulk g-C3N4. The elevated photocatalytic activity was attributed to the synergism of porous nanosheet and N defect, which improved light harvesting and accelerated separation of photo-induced e(-) and h(+), greatly assisting in organic pollutants removal and hydrogen evolution. Furthermore, trapping experiments demonstrated that the holes and superoxide radicals were the main active species in the photocatalytic degradation of Eosin-Y solution.
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