Scalable Synthesis of Ultrathin g-C₃N₄ Nanosheets with Enhanced Photocatalytic Activities via High Shear Exfoliation

Abstract:

High-shear mixing was demonstrated as an effective approach for the green synthesis of ultrathin g-C₃N₄ nanosheets with excellent photocatalytic performance. The resultant nanosheets were characterized in terms of morphology, crystal structure, electronic structure and photocatalytic behavior. It was found that the g-C₃N₄ nanosheets mainly consist of one C-N layer with a thickness about 0.7 nm. The products show a band gap of 2.6 eV and exhibit high photocatalytic activities with almost 4 times higher than their bulk counterparts toward RhB degradation. With the yield as high as 20 %, the present simple route may be qualified as a promising candidate for the mass production of high quality g-C₃N₄ nanosheets.

• Periodical: Journal of Nano Research (Volume 45)
• Pages: 49-54
• DOI: https://doi.org/10.4028/www.scientific.net/JNanoR.45.49
• Online since: January 2017
• Authors: Ting Nan Yan, En Hui Liu*, Zeng Yong Chu, Xiao Dong Li
• Keywords: 2D Materials, Semiconductors, Shear-Exfoliation, Ultrathin g-C₃N₄ Nanosheets

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