Fabrication of Fe<sub>3</sub>O<sub>4</sub>@C core-shell particles and its application in UV-Fenton oxidize removal of VOCs

CHEN Hai-ying; LIU Jie-min; YUAN Si-yi; PEI Yi-pu; ZHAO Peng; ZHANG Yan; YAN Lu-chun; WU Chuan-dong; GAO Xiao-ya

doi:10.13374/j.issn2095-9389.2017.08.005

Volume 39 Issue 8

Aug. 2017

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Article Navigation > Chinese Journal of Engineering > 2017 > 39(8): 1166-1173

CHEN Hai-ying, LIU Jie-min, YUAN Si-yi, PEI Yi-pu, ZHAO Peng, ZHANG Yan, YAN Lu-chun, WU Chuan-dong, GAO Xiao-ya. Fabrication of Fe3O4@C core-shell particles and its application in UV-Fenton oxidize removal of VOCs[J]. Chinese Journal of Engineering, 2017, 39(8): 1166-1173. doi: 10.13374/j.issn2095-9389.2017.08.005

Citation:

CHEN Hai-ying, LIU Jie-min, YUAN Si-yi, PEI Yi-pu, ZHAO Peng, ZHANG Yan, YAN Lu-chun, WU Chuan-dong, GAO Xiao-ya. Fabrication of Fe₃O₄@C core-shell particles and its application in UV-Fenton oxidize removal of VOCs[J]. Chinese Journal of Engineering, 2017, 39(8): 1166-1173. doi: 10.13374/j.issn2095-9389.2017.08.005

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Fabrication of Fe₃O₄@C core-shell particles and its application in UV-Fenton oxidize removal of VOCs

doi: 10.13374/j.issn2095-9389.2017.08.005

1) School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
2) School of Chemical Engineering, Qinghai University, Xining 810016, China
3) China Building Materials Academy, Beijing 100024, China
4) Beijing Municipal Institute ofLabor Protection, Beijing 100054, China
5) School of Science, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
6) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2017-01-05

Abstract

Abstract

The solvothermal method was used to prepare Fe₃O₄@C core-shell microspheres. The structure and morphology of the nanocomposite powders were characterized by X-ray diffraction, transmission electron microscopy, and Fourier transform infrared spectroscopy, and then the particles were used as heterogeneous catalysts in the UV-Fenton removal of VOCs in gas. The results show that the Fe₃O₄@C core-shell microspheres have a strong adsorption capacity for VOCs due to the outer layer of Fe₃O₄ being coated with a carbon layer of uniform thickness and pore structure. For sparingly soluble organic gases such as octane, the adsorption of these particles could increase the total concentration of VOCs in the liquid phase. Therefore, the opportunity for the Fenton reagent to be in contact with the VOCs gas increases, causing a significant improvement in the gas removal efficiency. Moreover, the cooperation factor β was introduced to evaluate the synergistic effects in the integrated process of the adsorption-catalytic oxidation by the core-shell structure particles.
- core-shell nanocomposite,
- UV-Fenton oxidation,
- volatile organic compounds,
- adsorptive-catalytic effects

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References(17)

References

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