title: Novel magnetic Fe3O4@C nanoparticles as adsorbents for removal of organic dyes from aqueous solution.
abstract: The magnetic Fe(3)O(4)/C core-shell nanoparticles have been synthesized by a simple strategy and used as adsorbents for removal of organic dyes from aqueous solution. The resulting products are characterized by scanning electron microscope (SEM), energy dispersive X-ray spectrometry (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectra and Fourier transform infrared spectra (FTIR). Adsorption performances of the nanomaterial adsorbents are tested with removal of methylene blue (MB) and cresol red (CR) from aqueous solution. The effects of solution pH value, adsorption time and capacity of the nanocomposites have been fully investigated. The results reveal that the nanospheres can be easily manipulated by an external magnetic field with high separation efficiency. In addition, the process is clean and safe for purifying water pollution. The prepared Fe(3)O(4)/C complex nanomaterials could thus be used as promising adsorbents for the remove organic dyes, especially, cationic dye, from polluted water.
authors.affiliation: Department of Chemistry, Fudan University, Shanghai 200433, China.
authors.forename: Zhengyong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jilie
authors.initials: J
authors.lastname: Kong
mesh_terms: D000327:Adsorption; D004396:Coloring Agents / Q000737:chemistry* / Q000302:isolation & purification; D005290:Ferric Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D004396:Coloring Agents; D005290:Ferric Compounds; D014867:Water; C000499:ferric oxide