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Enhanced Visible Light Irradiation Photocatalytic Performance of MgFe 2 O 4 After Growing with ZnO Nanoshell and Silver Nanoparticles
Author(s) -
Wang Yuhang,
Yan Hongxia,
Zhang Qiuyu
Publication year - 2017
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201700110
Subject(s) - nanoparticle , chemistry , rhodamine b , transmission electron microscopy , scanning electron microscope , photocatalysis , selected area diffraction , chemical engineering , nanoshell , irradiation , degradation (telecommunications) , visible spectrum , nuclear chemistry , nanotechnology , photochemistry , materials science , organic chemistry , composite material , optoelectronics , catalysis , physics , nuclear physics , engineering , telecommunications , computer science
MgFe 2 O 4 implanted with ZnO and silver nanoparticles has been successfully synthesized. The formation mechanism of the core~shell structured Ag/ ZnO / MgFe 2 O 4 nanoparticles was investigated. The efficacy of degradation of an organic dye was compared under the visible light irradiation with the individual components ( MgFe 2 O 4 , ZnO , and Ag). The structure of Ag/ ZnO / MgFe 2 O 4 nanoparticles was established from detailed structural analyses using a vibrating‐sample magnetometer (VSM), X‐ray diffraction ( XRD ), selected area electron diffraction ( SAED ), scanning electron microscopy ( SEM ), energy‐dispersive X‐ray spectroscopy ( EDS ), and transmission electron microscopy ( TEM ). Ag/ ZnO / MgFe 2 O 4 nanoparticles showed a saturation magnetization ( M s ) of 44 emu/g. It is seen from the results that ZnO is coated on the surface of MgFe 2 O 4 nanoparticles, and Ag nanoparticles are attached to the edge of the ZnO / MgFe 2 O 4 nanoparticles. In addition, the nanoparticles were found to be spherical with appropriate structures. The electron transfer mechanism greatly enhances the rhodamine B ( RhB ) degradation rate, which is illustrated and discussed in detail. The obtained Ag/ ZnO / MgFe 2 O 4 nanoparticles were photostable and magnetically recyclable with potential application in the degradation of organic pollutants.

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