TY - JOUR
T1 - Preparation of magnetic Fe3O4/SiO2/Bi 2WO6 microspheres and their application in photocatalysis
AU - Chen, Su Hua
AU - Yin, Zhen
AU - Luo, Sheng Lian
AU - Au, Chak Tong
AU - Li, Xue Jun
N1 - Funding Information:
The work was financially supported by the National Outstanding Youth Foundations of China (No. 50725825 ), the Innovation Foundation for Graduates of Jiangxi Province ( YC10A113 ) and the Science and Technology Research Foundation of the Provincial Education Department of Jiangxi ( GJJ08201 ). C.T. Au thanks the NCHKU for an adjunct professorship.
PY - 2013/2
Y1 - 2013/2
N2 - Magnetic Fe3O4/SiO2/Bi2WO 6 microspheres with photocatalytic properties have been synthesized using a silica layer for "bonding" (adhering Bi2WO 6 to Fe3O4). The morphology, composition and magnetic properties of the Fe3O4/SiO2/Bi 2WO6 composites were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, and BET surface area analysis. The activity of the material in photocatalytic decoloration of aqueous rhodamine B (RhB) solution under visible light was evaluated. The results showed that Bi 2WO6 combined well with the magnetic Fe3O 4/SiO2 nanoparticles. The Fe3O 4/SiO2/Bi2WO6 composites were spherical in shape, having a mean size of 2 μm. The spent catalyst could be recycled with only slight decline in catalytic activity. It is envisaged that the stability, reusability, and magnetic nature of the Fe3O 4/SiO2/Bi2WO6 catalyst warrants its application in photocatalysis.
AB - Magnetic Fe3O4/SiO2/Bi2WO 6 microspheres with photocatalytic properties have been synthesized using a silica layer for "bonding" (adhering Bi2WO 6 to Fe3O4). The morphology, composition and magnetic properties of the Fe3O4/SiO2/Bi 2WO6 composites were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, and BET surface area analysis. The activity of the material in photocatalytic decoloration of aqueous rhodamine B (RhB) solution under visible light was evaluated. The results showed that Bi 2WO6 combined well with the magnetic Fe3O 4/SiO2 nanoparticles. The Fe3O 4/SiO2/Bi2WO6 composites were spherical in shape, having a mean size of 2 μm. The spent catalyst could be recycled with only slight decline in catalytic activity. It is envisaged that the stability, reusability, and magnetic nature of the Fe3O 4/SiO2/Bi2WO6 catalyst warrants its application in photocatalysis.
KW - A. Magnetic materials
KW - B. Chemical synthesis
KW - C. Electron diffraction
KW - C. X-ray diffraction
KW - D. Catalytic properties
UR - http://www.scopus.com/inward/record.url?scp=84871719582&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2012.11.017
DO - 10.1016/j.materresbull.2012.11.017
M3 - Journal article
AN - SCOPUS:84871719582
SN - 0025-5408
VL - 48
SP - 725
EP - 729
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 2
ER -