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

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In this paper, a novel type of core–shell 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 core–shell 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–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.
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Keywords: CDS; CORE–SHELL; PHOTOCATALYSIS; TETRACYCLINE; ZNFE2O4

Document Type: Short Communication

Publication date: July 1, 2017

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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