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Microwave-Assisted Fabrication of Recyclable CdS/Fe3O4/rGO Photocatalysts to Improve the Photocatalytic Performance Under Visible Light.

Authors :
Liu, Xinlin
Qin, Yingying
Zhou, Mingjun
Yan, Yongsheng
Source :
NANO. Nov2016, Vol. 11 Issue 11, p1. 13p.
Publication Year :
2016

Abstract

A unique CdS/Fe3O4/rGO composite photocatalyst is successfully synthesized by the microwave method. It displays promising photocatalytic activity towards the photo-degrading of tetracycline (TC) in aqueous solution, the degradation rate of TC is 69% with adding 0.1g CdS/Fe3O4/rGO photocatalyst into 20mg/L tetracycline for 2h under visible light irradiation. Furthermore, the mechanism was systematically investigated by active species trapping experiment. It can be known that the major active species in the photodegradation process and the possible process of charge transfer for CdS/Fe3O4/rGO was proposed based on the experimental results. The as-prepared samples were carefully evaluated by XRD, TEM, XPS, VSM, PL spectra, Raman spectrometer. The TEM figure reveals the morphology and microstructure of Fe3O4, Fe3O4/rGO, CdS/Fe3O4/rGO. It can be seen that the pure Fe3O4 sample displays similar size and shape sphere (Fig. A); the rGO is like thin films loaded with Fe3O4, which indicates that the sample is successfully composed of well-dispersed spherical particles (Fig. B). Figures C and D show the morphology of the CdS/Fe3O4/rGO NPs at different magnifications. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
17932920
Volume :
11
Issue :
11
Database :
Academic Search Index
Journal :
NANO
Publication Type :
Academic Journal
Accession number :
118910591
Full Text :
https://doi.org/10.1142/S1793292016501290