Title

Finely dispersed Au nanoparticles on graphitic carbon nitride as highly active photocatalyst for hydrogen peroxide production

RIS ID

133576

Publication Details

Zuo, G., Liu, S., Wang, L., Song, H., Zong, P., Hou, W., Li, B., Guo, Z., Meng, X., Du, Y., Wang, T. & Roy, V. A. L. (2019). Finely dispersed Au nanoparticles on graphitic carbon nitride as highly active photocatalyst for hydrogen peroxide production. Catalysis Communications, 123 69-72.

Abstract

In this work, graphitic carbon nitride (g-C 3 N 4 ) supporting finely dispersed Au nanoparticles is developed as a simple and efficient photocatalyst for H 2 O 2 production under visible light irradiation. Au nanoparticle cocatalyst remarkably enhances photocatalytic activity of C 3 N 4 for H 2 O 2 production. Due to the inert nature to catalyze the decomposition of H 2 O 2 , Au/C 3 N 4 also exhibits stable H 2 O 2 evolution rate. It is of great interest that the maximal H 2 O 2 production activity is reached at the loading amount of Au as low as 0.01%, revealing the great catalytic efficacy of highly dispersed Au cocatalyst during the photocatalytic H 2 O 2 synthesis and the possibility to produce concentrated H 2 O 2 using C 3 N 4 with extremely low Au loading amount. The in situ electron spin resonance studies reveal that the H 2 O 2 is produced through direct 2e − oxygen reduction over Au/C 3 N 4 photocatalyst.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.catcom.2019.02.011