Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 18, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-016-3656-y
Keywords
Photo-Fenton; Fe3O4; TiO2; P-nitrophenol
Categories
Funding
- National Natural Science Foundation of China [20104017]
- College Students' Science and Technology Innovation Activities Plan of Zhejiang [2014R404056]
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Heterogeneous photo-Fenton SiO2/Fe3O4/C@TiO2 (SFCT) catalyst with a core-multishell structure and a diameter of about 550 nm was successfully prepared and was characterized by scanning electron microscopy (SEM), TEM, XRD, Raman, and Fourier transform infrared (FT-IR). The results illustrated that anatase TiO2 coexisted with rutile TiO2, in which the anatase phase was the main crystal phase. In addition, the catalytic activity of SFCT catalyst had been evaluated in the catalytic degradation on p-nitrophenol (PNP). The influence factors on the PNP degradation, including SFCT component ratio (m(SFC)/m(TiO2)), H2O2 dosage, solution pH, and PNP concentration, had been investigated. And the contrast experiments about the photo-Fenton catalytic mechanism revealed that the SFCT-2 catalyst possessed a superior activity in the neutral environment due to the optimal activity matching between Fe3O4 and TiO2, and it exhibited the stable catalytic performance after five successive recycles. Therefore, the SFCT-2 catalyst had a promising application for the photo-Fenton degradation of organic contaminant.
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