Details

Autor(en) / Beteiligte

• Xu, J.C.
• Xin, P.H.
• Han, Y.B.
• Wang, P.F.
• Jin, H.X.
• Jin, D.F.
• Peng, X.L.
• Hong, B.
• Li, J.
• Ge, H.L.
• Zhu, Z.W.
• Wang, X.Q.

Titel

Magnetic response and adsorptive properties for methylene blue of CoFe2O4/CoxFey/activated carbon magnetic composites

Ist Teil von

• Journal of alloys and compounds, 2014-12, Vol.617, p.622-626

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2014

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •Ferromagnetic mediums were anchored into AC, resulting in good magnetic response.•S-200 with high BET surface area possessed the good adsorptive performance for MB.•99% MB was adsorbed in 50min and AC composites were separated easily by magnetic separation technique.•The adsorptive behavior for MB conformed to the Langmuir model. Owing to the unique microporous structure and high surface area, activated carbon (AC) was a good adsorbent in the environmental protection filed. In this paper, CoFe2O4 and CoxFey were anchored into AC to synthesize CoFe2O4/CoxFey/AC composites by sol–gel method. The microstructures and magnetic properties of CoFe2O4/CoxFey/AC were discussed by XRD, TGA, ASAP and VSM. The results indicated that CoFe2O4 and CoxFey nanoparticles existed in the pores of AC. The saturation magnetization (Ms) of CoFe2O4/CoxFey/AC composites increased with CoFe2O4 and CoxFey, while the surface area and pore volume decreased. The S-200 sample (Co:Fe:C=1:2:200) possessed the surface area of 967.17m2g−1 and Ms of 9.44emu/g, which was sufficient for the application in wastewater treatment. Furthermore, the kinetic studies indicated that adsorption process for methylene blue (MB) conformed to the Langmuir model. 99% MB could be adsorbed in 50min, and CoFe2O4/CoxFey/AC composites could be separated easily by magnetic separation technique.