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Preparation for Magnetic Nanoparticles Fe 3 O 4 and Fe 3 O 4 @SiO 2 and Heterogeneous Fenton Catalytic Degradation of Methylene Blue
Author(s) -
Xie Huanling,
He Wei,
Chen Ge
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201400184
Subject(s) - methylene blue , catalysis , chemistry , wastewater , hydrothermal circulation , adsorption , nanoparticle , nuclear chemistry , degradation (telecommunications) , magnetic nanoparticles , nanocomposite , chemical engineering , methylene , biodegradation , desorption , waste management , organic chemistry , photocatalysis , telecommunications , computer science , engineering
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 Fe 3 O 4 and core‐shell Fe 3 O 4 @SiO 2 materials by hydrothermal methods. These materials were characterized by XRD, TEM, N 2 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 Fe 3 O 4 @SiO 2 materials were possessed with good cycle performance.