Heterostructured layered hybrid ZnO/MoS2 nanosheets with enhanced visible light photocatalytic activity

• Published in: The Journal of physics and chemistry of solids Vol. 113; pp. 119 - 124
• Main Authors: Benavente, Eglantina, Durán, Flor, Sotomayor-Torres, C., González, Guillermo
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2018
• Subjects: Heterostructured; MoS2; Photocatalytic activity; Visible light; ZnO; Photocatalytic activity; Heterostructured; Visible light; ZnO; MoS2
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/j.jpcs.2017.10.027

A series of novel heterostructured hybrid layered ZnO and MoS2 nanosheets composites were successfully prepared with different MoS2 contents. Among all the prepared materials, ZnO/MoS2 (1:0.05) composite showed enhanced photocatalytic activity for methylene blue degradation under direct solar light compared with pristine ZnO. The MoS2 component played a key role for the visible light activity of the composite system at longer wavelengths. The kinetic equations of photocatalytic reaction and possible photocatalytic degradation mechanism were investigated. The results indicated that it belongs to the zero order kinetic and the photogenerated electrons are transferred from hybrid layered ZnO to the MoS2 nanosheets, facilitating an interfacial electron transfer suppressing the recombination of charge carriers during the photocatalytic degradation. [Display omitted] •A series of novel heterostructured hybrid layered ZnO/MoS2 nanosheets were prepared.•ZnO/MoS2 (1:0.05) composite showed enhanced photocatalytic activity for degradation.•Photogenerated electrons are transferred from hybrid layered ZnO to MoS2 nanosheets.