Titanium dioxide and cadmium sulfide co-sensitized graphitic carbon nitride nanosheets composite photocatalysts with superior performance in phenol degradation under visible-light irradiation.

Author(s) Yao, J.; Chen, H.; Jiang, F.; Jiao, Z.; Jin, M.
Journal J Colloid Interface Sci
Date Published 2017 Mar 15
Abstract

In this work, TiO2-CdS-gCNNSs heterojunction photocatalysts were successfully synthesized. CdS was deposited on the surface of gCNNSs via electrostatic attraction; TiOC, TiOCO and TiON bonds were produced in TiO2-CdS-gCNNSs, strengthening the interaction between TiO2 and gCNNSs. The TiO2-CdS-gCNNSs photocatalyst showed excellent photocatalytic activity for phenol degradation under visible-light irradiation, which was higher than that of CdS-gCNNSs, CdS-TiO2 and TiO2-gCNNSs. The improved photocatalytic performance of TiO2-CdS-gCNNSs was ascribed to more adsorption sites, enhanced light harvesting ability and effective separation rate of electron-hole pairs. Furthermore, the results of photocatalytic mechanism indicated that h(+) and O2(-) played a more significant role on the phenol degradation.

DOI 10.1016/j.jcis.2016.11.051
ISSN 1095-7103
Citation Yao J, Chen H, Jiang F, Jiao Z, Jin M. Titanium dioxide and cadmium sulfide co-sensitized graphitic carbon nitride nanosheets composite photocatalysts with superior performance in phenol degradation under visible-light irradiation. J Colloid Interface Sci. 2017;490:154-162.

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