Citation: Yanjuan Cui. In-situ synthesis of C₃N₄/CdS composites with enhanced photocatalytic properties[J]. Chinese Journal of Catalysis, ;2015, 36(3): 372-379. doi: 10.1016/S1872-2067(14)60237-0 shu

In-situ synthesis of C₃N₄/CdS composites with enhanced photocatalytic properties

Yanjuan Cui ^,

1.
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China

Corresponding author: Yanjuan Cui,
Received Date: 31 August 2014
Available Online: 8 October 2014
Fund Project: 江苏省自然科学基金(BK20140507). (BK20140507)

A hybrid semiconductor composed of a carbon nitride/cadmium sulfide nanocomposite (C₃N₄/CdS) was synthesized by a template-free one-step calcination route at high temperature using ammonium thiocyanate and cadmium chloride as starting materials. The crystal structure, composition and morphology of the hybrid samples were studied by X-ray diffraction, Fourier transform infrared spectroscopy and transmission electron microscopy. The photocatalytic degradation of Rhodamine B as a model compound was carried out to evaluate the photocatalytic activity of the nanocomposites under visible light irradiation. Hexagonal CdS nanocrystals were uniformly distributed in the bulk C₃N₄. After coupling with CdS the basic C₃N₄ structure was mostly unchanged. The visible light absorption properties of the hybrid materials were enhanced. The as-prepared C₃N₄/CdS hybrid photocatalyst exhibited superior degradation performance under visible light irradiation compared with pure C₃N₄. The well-matched band energy improved the transfer efficiency of the photoinduced carriers and this was responsible for the enhanced photocatalytic activity and stability of the hybrid photocatalysts.
- Carbon nitride,
- Cadmium sulfide,
- Photocatalysis,
- Degradation of pollutants
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沈阳化工大学材料科学与工程学院沈阳 110142

In-situ synthesis of C3N4/CdS composites with enhanced photocatalytic properties

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通讯作者: 陈斌, bchen63@163.com

In-situ synthesis of C₃N₄/CdS composites with enhanced photocatalytic properties