类石墨相氮化碳二维纳米片的制备及可见光催化性能研究<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.09.010

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Abstract The graphite-like carbon nitride (g-C₃N₄) two-dimension (2D) nanosheet were successfully prepared by a ball-mi-lling and ultrasound process using melamine as raw material. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), atomic force microscope (AFM) and photoluminescence spectrum (PL). The XRD results showed that g-C₃N₄2D nanosheet had the same crystal phase as g-C₃N₄. The exfoliated products were comprised of only 5 C-N layers. The g-C₃N₄ 2D nanosheet improved the absorption of visible light and accelerated the separation of photo-generated electron-hole pairs. The photocatalytic performance of the samples was evaluated by photocatalytic oxidation of rhodamine B (RhB) under visible light irradiation. The results show that g-C₃N₄ 2D nanosheet exhibited a much higher degradation rate which is 2 times as high as that of pure g-C₃N₄.

Key words： graphite-like carbon nitride nanosheet liquid exfoliation visible photocatalysis

Published: 10 May 2017 Online: 2018-05-03

CLC number:	TB321
	O649.1

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.09.010 OR https://www.mater-rep.com/EN/Y2017/V31/I9/77

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