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- Title
Ionic liquid-assisted synthesis and improved photocatalytic activity of p-n junction g-CN/BiOCl.
- Authors
Yin, Sheng; Di, Jun; Li, Ming; Sun, Yilin; Xia, Jiexiang; Xu, Hui; Fan, Wenmin; Li, Huaming
- Abstract
The g-CN/BiOCl microsphere photocatalysts have been successfully synthesized in the presence of the reactable ionic liquid [Cmim]Cl. The p-n junction between p-type BiOCl and n-type g-CN has been successfully constructed with g-CN dispersed on the surface of BiOCl microspheres. The g-CN/BiOCl microspheres were characterized by XRD, XPS, SEM, FT-IR, and DRS. Rhodamine B (RhB) was used as a target pollutant to evaluate the photocatalytic activity of the as-prepared g-CN/BiOCl microsphere photocatalysts. The g-CN/BiOCl material exhibited superior photocatalytic performance when compared with pure BiOCl. The formed p-n junction was responsible for the improved separation efficiency of photogenerated electron-hole pairs, and thus the higher photocatalytic activity. The possible photocatalytic mechanism was proposed based on relative band positions of these two semiconductors.
- Subjects
IONIC liquids; PHOTOCATALYSIS; CATALYTIC activity; P-N junctions (Semiconductors); RHODAMINE B
- Publication
Journal of Materials Science, 2016, Vol 51, Issue 10, p4769
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-016-9746-5