Metal-free hybrids of graphitic carbon nitride and nanodiamonds for photoelectrochemical and photocatalytic applications

Abstract

Graphitic carbon nitride (g-C3N4) has been considered as a metal-free, cost-effective, eco-friendly and efficient catalyst for various photoelectrochemical applications. However, compared to conventional metal-based photocatalysts, its photocatalytic activity is still low because of the low mobility of carriers restricted by the polymer nature. Herein, a series of hybrids of g-C3N4 (GCN) and nanodiamonds (NDs) were synthesized using a solvothermal method. The photoelectrochemical performance and photocatalytic efficiency of the GCN/NDs were investigated by means of the generation of photocurrent and photodegradation of methylene blue (MB) solutions under UV–visible light irradiations. In this study, the sample of GCN/ND-33% derived from 0.1 g GCN and 0.05 g NDs displayed the highest photocatalytic activity and the strongest photocurrent density. The mechanism of enhanced photoelectrochemical and photocatalytic performances was also discussed.

RAS ID

24678

Document Type

Journal Article

Date of Publication

2017

School

School of Engineering

Copyright

subscription content

Publisher

Elsevier

Comments

Zhou, L., Zhang, H., Guo, X., Sun, H., Liu, S., Tade, M. O., & Wang, S. (2017). Metal-free hybrids of graphitic carbon nitride and nanodiamonds for photoelectrochemical and photocatalytic applications. Journal of Colloid and Interface Science, 493, 275-280. https://doi.org/10.1016/j.jcis.2017.01.038

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Link to publisher version (DOI)

10.1016/j.jcis.2017.01.038