Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5439275 | Ceramics International | 2016 | 8 Pages |
Abstract
A series of onion-like carbon modified porous g-C3N4 (OLC/pg-C3N4) composites have been fabricated by a simple ultrasonic adsorption approach. The resultant OLC/pg-C3N4 composites exhibit excellent photocatalytic activity and stability towards the degradation of the dyes and phenol in aqueous solution under visible-light irradiation. The composite with 2.0Â wt% OLC content shows the optimal photocatalytic activity for degrading rhodamine B (RhB), its rate constant is about three times that of pure pg-C3N4. The improved photocatalytic activity is mainly attributed to the synergetic effect of pg-C3N4 and OLC, including larger surface area, stronger visible light adsorption and efficient separation of photogenerated electrons and holes. Moreover, a possible mechanism of photocatalytic reaction over OLC/pg-C3N4 composite is proposed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lei Shi, Fangxiao Wang, Jing Zhang, Jianmin Sun,