Flower-like core-shell Fe 3 O 4 @MnO 2 microspheres: Synthesis and selective removal of Congo red dye from aqueous solution
| Autor: | Mengguo Dong, Zhiheng Pan, Fenghua Chen, Li Yinping, Qingxiang Yang, Haimei Song, Zhijun Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Inorganic chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Congo red chemistry.chemical_compound chemistry Selective adsorption Materials Chemistry Rhodamine B Methyl orange Crystal violet Particle size Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy Methylene blue |
| Zdroj: | Journal of Molecular Liquids. 234:18-23 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2017.03.028 |
| Popis: | Flower-like core-shell MnO2-coated magnetic composites (Fe3O4@MnO2) were prepared via a simple hydrothermal process. The particle size of Fe3O4@MnO2 composites is in the range of 300–400 nm with a flower-like amorphous MnO2 shell. Congo red can be selective removal by Fe3O4@MnO2 composites from aqueous solution involving various dyes (Congo red (CR), methylene blue (MB), methyl orange (MO), crystal violet (CV), and rhodamine B (RB)), which benefits from the interactions between the positive charged surface of Fe3O4@MnO2 composites and anionic dye molecules. The maximum removal rate of CR was 95% (wt%) and larger than that of other dyes ( |
| Databáze: | OpenAIRE |
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