Facile Synthesis and Characterization of Novel CdS/BiOI Heterojunctions with Enhanced Visible-Light Photocatalytic Performances

• Authors: Shanshan Fang , Min Lu , Man Zhou , Zhongyu Li , Song Xu , Yanyan Peng , Qinchi Li , Dayong Lu
• Languages of publication: EN

Abstracts

EN

Novel CdS/BiOI heterojunction photocatalysts were successfully prepared by facile method. The as-prepared samples were characterized by transmission electron microscopy, field-emission scanning electron microscopy, X-ray diffraction, the Raman spectroscopy, UV-vis diffuse reflectance spectra, the Fourier transform infrared spectra, and photoluminescence. It was found that CdS nanoparticles were uniformly distributed on the surface of BiOI microspheres. The photodegradation tests showed that the photocatalytic efficiency was increased at first and then decreased when further increasing CdS content in the nanocomposites. The highest activity was obtained by 3%-CdS/BiOI nanocomposites. The enhanced photocatalytic performances were attributed to the matched band potentials of CdS and BiOI, which resulted in the efficient separation of photogenerated electron-hole pairs. Based on the experimental results, a reasonable photocatalytic mechanism of CdS/BiOI photocatalysts was also proposed.

Keywords

EN

CdS/BiOI heterojunctions; visible-light photocatalyst; photocatalytic activity; nanocomposites

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 2
• Pages: 263-270

Dates

published

2017-02

received

2016-09-01

(unknown)

2017-01-07

Contributors

author

Shanshan Fang

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China

author

Min Lu

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China

author

Man Zhou

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China

author

Zhongyu Li

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China
• Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China
• Jilin Institute of Chemical Technology, Jilin 132022, PR China

author

Song Xu

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China

author

Yanyan Peng

• Jilin Institute of Chemical Technology, Jilin 132022, PR China

author

Qinchi Li

• Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou 213164, PR China
• Jilin Institute of Chemical Technology, Jilin 132022, PR China

author

Dayong Lu

• Jilin Institute of Chemical Technology, Jilin 132022, PR China

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Identifiers

DOI

10.12693/APhysPolA.131.263