Photocatalytic Activity Enhanced via g-C3N4 Nanoplates to Nanorods

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• 作者：Xiaojuan Bai ; Li Wang ; Ruilong Zong ; Yongfa Zhu
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：May 16, 2013
• 年：2013
• 卷：117
• 期：19
• 页码：9952-9961
• 全文大小：587K
• 年卷期：v.117,no.19(May 16, 2013)
• ISSN：1932-7455

文摘

The transformation of graphitic carbon nitride (g-C₃N₄) from nanoplates to nanorods was realized by a simple reflux method. The photocatalytic activity and the intensity of the photocurrent response of g-C₃N₄ nanorods under visible light were about 1.5 and 2.0 times those of g-C₃N₄ nanoplates, respectively. The formation mechanism of g-C₃N₄ from nanoplates to nanorods was demonstrated that g-C₃N₄ nanoplates undergo a possible exfoliation and regrowth process and a rolling mechanism of lamellar structure, which is responsible for elimination of the surface defects in the reflux process. During the transformation of g-C₃N₄ from nanoplates to nanorods, the enhancement of photocatalytic activity and photocurrent intensity in g-C₃N₄ nanorods was mainly attributed to the increase of active lattice face and elimination of surface defects.