1. The p-n-type Bi5O7I-modified porous C3N4 nano-heterojunction for enhanced visible light photocatalysis.
- Author
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Dong, Zongjun, Pan, Jiaqi, Wang, Beibei, Jiang, Ziyuan, Zhao, Chuang, Wang, Jingjing, Song, Changsheng, Zheng, Yingying, Cui, Can, and Li, Chaorong
- Subjects
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BISMUTH compounds , *CARBON compounds , *HETEROJUNCTIONS , *NANOPARTICLES , *ANNEALING of metals , *PHOTOCATALYSIS - Abstract
A p-n-type Bi 5 O 7 I-modified porous g-C 3 N 4 nano-heterojunction is synthesized via a simple preparation technique using the template method and annealing-hydrothermal co-deposition method. The results of SEM, EDS, elemental mapping, XRD, TEM, XPS and FT-IR imply that the Bi 5 O 7 I nanoparticles were successfully deposited on the surface of the g-C 3 N 4 nanosheets. The photocatalytic activity of the as-prepared p-n-type nano-heterojunction remarkably exhibits an enhancement of 30 times that of the unmodified samples. Furthermore, the photocatalytic degradation enhancement mechanism has been studied, which could be ascribed to the p-n-type nano-heterojunction and lamellar-porous structure of the g-C 3 N 4 . [ABSTRACT FROM AUTHOR]
- Published
- 2018
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