Development of ZnFe2O4@CdS Core-Shell Nanocomposites for Enhanced Visible-Light Photocatalytic Degradation of Tetracycline

作者：Liu, Xinlin^*; Qin, Yingying; Xing, Guoliang; Li, Chunxiang; Lang, Jihui; Liu, Yang; Xing, Scott^*

来源：Nanoscience and Nanotechnology Letters, 2017, 9(7): 989-997.

DOI：10.1166/nnl.2017.2424

• ZnFe2O4
• CdS
• Core-Shell
• Tetracycline
• Photocatalysis

In this paper, a novel type of coreshell structured ZnFe2O4@CdS composite photocatalyst is successfully synthesized by a facile two-step strategy method. The corresponding morphology, structure and optical properties of developed photocatalyst were well characterized. The photocatalytic degradation of tetracycline (TC) experiments indicated that the ZnFe2O4@CdS coreshell exhibited a higher photocatalytic activity than the pure ZnFe2O4 and CdS under the visible light irradiation, especially 0.1 g ZnFe2O4@CdS composites with a content of 78 wt.% CdS resulted in 95.31% degradation of 20 mg/L TC in 90 min. with 0.1 g catalyst. Furthermore, the photodegradation mechanism was investigated by trapping experiments, which revealed that O-center dot(2)- was the most active species in the photodegradation process. And the possible process of charge transfer for ZnFe2O4@CdS composite photocatalyst was proposed based on the experimental results.

• 出版日期2017-7
• 单位江苏大学; 吉林师范大学