? 能源化学(英文)
ISSN 1003-9953
能源化学(英文) 2017, Vol. 26 Issue (1) :17-23    DOI: 10.1016/j.jechem.2016.10.015
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Fabrication and characterization of Fe3O4@SiO2@TiO2@Ho nanostructures as a novel and highly efficient photocatalyst for degradation of organic pollution
Sobhan Mortazavi-Derazkolaa, Masoud Salavati-Niasar ia, Omid Amir ib, Ali Abbasia
a Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box 87317-51167, Kashan, Islamic Republic of Iran;
b Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, USA
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摘要 In this work we synthesize a novel and highly efficient photocatalyst for degradation of methyl orange and rhodamine B. In addition, a new method for synthesis of Fe3O4@SiO2@TiO2@Ho magnetic core-shell nanoparticles with spherical morphology is proposed. The crystal structures, morphology and chemical properties of the as-synthesized nanoparticles were characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDS), X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS) and vibrating sample magnetometer (VSM) techniques. The photocatalytic activity of Fe3O4@SiO2@TiO2@Ho was investigated by degradation of methyl orange (MO) as cationic dye and rhodamine B (RhB) as anionic dye in aqueous solution under UV/vis irradiation. The results indicate that about 92.1% of RhB and 78.4% of MO were degraded after 120 and 150 min, respectively. These degradation results show that Fe3O4@SiO2@TiO2@Ho nanoparticles are better photocatalyst than Fe3O4@SiO2@TiO2 for degradation of MO and RhB. As well as, the catalyst shows high recovery and stability even after several separation cycles.
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关键词Catalysis   Adsorption chemistry   Physical adsorption   Chemical adsorption     
收稿日期: 2016-08-22; 发布日期: 2016-11-30

Authors are grateful to the council of Iran National Science Foundation and University of Kashan for supporting this work by Grant No (159271/999).

通讯作者 Masoud Salavati-Niasari     Email: Salavati@kashanu.ac.ir
.Fabrication and characterization of Fe3O4@SiO2@TiO2@Ho nanostructures as a novel and highly efficient photocatalyst for degradation of organic pollution[J]  能源化学(英文) , 2017,V26(1): 17-23
.Fabrication and characterization of Fe3O4@SiO2@TiO2@Ho nanostructures as a novel and highly efficient photocatalyst for degradation of organic pollution[J]  Journal of Energy Chemistry, 2017,V26(1): 17-23
http://www.jenergchem.org/CN/10.1016/j.jechem.2016.10.015     或     http://www.jenergchem.org/CN/Y2017/V26/I1/17
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