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Organic–inorganic composite photocatalyst of g-C3N4and TaON with improved visible light photocatalytic activities

Dalton Transactions · 2009 · Vol. 39(6) · pp. 1488–1491

Shicheng Yan(Collaborative Innovation Center of Advanced Microstructures)Shasha Lv(Collaborative Innovation Center of Advanced Microstructures)Zengying Li✉(Nanjing University)Zhigang Zou(Nanjing University)

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Abstract

Organic-inorganic composite photocatalyst g-C(3)N(4)-TaON with visible-light response was prepared by a milling-heat treatment method. The photocatalyst was characterized by X-ray diffraction, high-resolution transmission electron microscopy and UV-vis diffuse reflection spectroscopy. The activity of composite photocatalyst g-C(3)N(4)-TaON for photodegradation of rhodamine B is higher than that of either single-phase g-C(3)N(4) or TaON. The obviously increased performance of g-C(3)N(4)-TaON is ascribed mainly to enhancement of electron-hole separations both at the interface and in the semiconductors.

Advanced Photocatalysis Techniques Perovskite Materials and Applications Electronic and Structural Properties of OxidesPhotocatalysisRhodamine BMaterials sciencePhotodegradationVisible spectrumComposite numberTransmission electron microscopyPhotochemistryHigh-resolution transmission electron microscopyDiffuse reflection

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Visible light-driven novel g-C3N4/NiFe-LDH composite photocatalyst with enhanced photocatalytic activity towards water oxidation and reduction reaction