In situ synthesis of metal-free N-GQD@g-C<inf>3</inf>N<inf>4</inf> photocatalyst for enhancing photocatalytic activity
- Publisher:
- Institution of Engineering and Technology (IET)
- Publication Type:
- Journal Article
- Citation:
- Micro and Nano Letters, 2020, 16, (1), pp. 77-82
- Issue Date:
- 2020-01-01
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Graphitic carbon nitride modified with N-doped graphene quantum dot (N-GQDs/g-C3N4) was prepared by an in situ method, in which the g-C3N4 was synthesized in the presence of N-GQD. Furthermore, the structure and photocatalytic degradation performance of in situ synthesised N-GQDs/g-C3N4 were investigated and compared with N-GQDs/g-C3N4 prepared by traditional mixing method. The removal efficiency was about 98.0% for the photocatalytic degradation of RhB after 70 min, which was larger comparing with other GQDs/g-C3N4 reported in previous works. The result was attributed to uniform distribution of N-GQDs on surface of g-C3N4, leading to more photogenerated electrons transfer. This work did not only report a new synthesis method of N-GQDs/g-C3N4, but also provided a new method to improve photodegradation performance of photocatalyst based on g-C3N4.
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