Preparation of magnetic Fe3O4/SiO2/Bi 2WO6 microspheres and their application in photocatalysis

Su Hua Chen; Zhen Yin; Sheng Lian Luo; Chak Tong Au; Xue Jun Li

doi:10.1016/j.materresbull.2012.11.017

Preparation of magnetic Fe₃O₄/SiO₂/Bi ₂WO₆ microspheres and their application in photocatalysis

Su Hua Chen
, Zhen Yin
, Sheng Lian Luo^*
, Chak Tong Au
, Xue Jun Li

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

38 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	725-729
Number of pages	5
Journal	Materials Research Bulletin
Volume	48
Issue number	2
DOIs	https://doi.org/10.1016/j.materresbull.2012.11.017
Publication status	Published - Feb 2013

User-Defined Keywords

A. Magnetic materials
B. Chemical synthesis
C. Electron diffraction
C. X-ray diffraction
D. Catalytic properties

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10.1016/j.materresbull.2012.11.017

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title = "Preparation of magnetic Fe3O4/SiO2/Bi 2WO6 microspheres and their application in photocatalysis",

abstract = "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.",

keywords = "A. Magnetic materials, B. Chemical synthesis, C. Electron diffraction, C. X-ray diffraction, D. Catalytic properties",

author = "Chen, \{Su Hua\} and Zhen Yin and Luo, \{Sheng Lian\} and Au, \{Chak Tong\} and Li, \{Xue Jun\}",

note = "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.",

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doi = "10.1016/j.materresbull.2012.11.017",

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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

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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 -

Preparation of magnetic Fe₃O₄/SiO₂/Bi ₂WO₆ microspheres and their application in photocatalysis

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