Preparation for Magnetic Nanoparticles Fe3O4 and Fe3O4@SiO2 and Heterogeneous Fenton Catalytic Degradation of Methylene Blue |
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| Authors: | Huanling Xie Wei He Ge Chen |
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| Affiliation: | School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China, Tel: 13647638549 |
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| Abstract: | Dyestuff textile wastewater treatment has become a research hotspot due to its high chroma, poor biodegradability, and low toxicity characteristics. In this paper, we have synthesized magnetic Fe3O4 and core‐shell Fe3O4@SiO2 materials by hydrothermal methods. These materials were characterized by XRD, TEM, N2 adsorption‐desorption and so on. These materials’ heterogeneous Fenton has been applied to dye wastewater treatment. Methylene blue was used as a typical target of dye wastewater. Decolorization ratios of methylene blue were determined by different nanostructure composites catalysts. A serious of results of study showed that decolorization ratios of magnetic nanoparticles and core‐shell composites arrived at above 90 % under the weakly acidic or neutral conditions and room temperature. When these catalysts were reused, the results show that Fe3O4@SiO2 materials were possessed with good cycle performance. |
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| Keywords: | Magnetic Fe3O4 Fe3O4@SiO2 Hydrothermal synthesis Methylene blue Decolorization ratios |
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