Enhanced visible−light photocatalytic performance of CdS/Zn1−xCdxWO4 composites prepared by a facile protocol. Issue 9 (15th June 2020)

• Record Type: Journal Article
• Authors: Wu, Yadong; Luo, Ni; Xie, Ruishi
• Is Part Of: Ceramics international. Volume 46:Issue 9(2020)
• Page Start: 14114
• Page End: 14123
• Publication Date: 2020-06-15
• Subjects: Semiconductor -- Doping -- Heterostructure -- Visible−light photocatalysis; CB conduction band -- MO methyl orange -- SEM scanning electron microscopy -- TEM transmission electron microscopy -- VB valence band -- XRD X−ray diffraction; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.02.216
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Low toxicity and high photocatalytic activity are imperative for the application of semiconductors to environmental remediation. Herein, CdS/Zn1− x Cd x WO4 composites were designed and successfully synthesized by a facile approach. The phase, morphology, light absorption ability, photoactivity, fluorescence, and photoelectrochemical properties of the composites were systematically investigated. The CdS/Zn1− x Cd x WO4 composites exhibited better photocatalytic activity for the degradation of methyl orange than CdS. Kinetic investigation indicated that the photocatalytic process follows a pseudo−first−order kinetic model. Benefitting from the synergistic effects of ion doping and heterostructure construction, the CdS/Zn1− x Cd x WO4 composites delivered excellent visible−light photocatalytic performance. This study is potentially applicable to hybrid nanostructures used in wastewater treatment and related applications.