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Zhenjiang, China

Li M.,Xue Fu Road 301 | Bai H.-Y.,Xue Fu Road 301 | Da Z.-L.,Xue Fu Road 301 | Yan X.,Xue Fu Road 301 | And 4 more authors.
Crystal Research and Technology | Year: 2015

CaFe2O4/MgFe2O4 nanowires with heterostructure had been successfully synthesized by electrospinning method. The obtained samples were systematically characterized by scanning electron microscopy (SEM), X-Ray diffraction (XRD), UV-Vis diffuse reflectance spectra (UV-Vis DR) and Environment scanning electron microscopy (ESEM). The novel CaFe2O4/MgFe2O4 nanowires exhibit an enhanced photocatalytic activity for degrading of tetracycline (TC) under visible light. Compared with bare CaFe2O4 or MgFe2O4 samples, the prepared CaFe2O4/MgFe2O4 (Ca:Mg:Fe = 3:2:10) composited nanowires show the best photocatalytic performance with a degradation efficiency of 40% after 150 min reaction time. This enhancement is attributed to the heterostructure of CaFe2O4/MgFe2O4 nanowires, which effectively repress the recombination of photo-generated electrons and holes. Based on heterostructure and energy band positions, the enhancement of mechanism under visible-light enhances the photocatalytic activity. CaFe2O4/MgFe2O4 nanowires have been successfully designed and prepared by electrospinning method. The obtained nanowires showed enhanced photocatalytic activity for degrading of tetracycline (TC) under visible light, which could be attributed to the heterostructure of CaFe2O4/MgFe2O4 nanowires that repressed the recombination of photo-generated electrons and holes. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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