Physicochemical Characterization of the Magnetic Fe₃O₄/MO-Intercalated-Layered Double Hydroxide Composite

Abstract:

A new magnetic Fe₃O₄/MO-intercalated-LDH composite has been synthesized by combination of Fe₃O₄, layered double hydroxide (LDH) and methyl orange (MO). Fe₃O₄/Zn₂CrLDH and Fe₃O₄/MO-intercalated-LDH were obtained via two-step microwave hydrothermal and anion exchange method. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and vibrating sample magnetometer (VSM) were conducted to characterize the as-prepared samples. The latter exhibited that basal spacing of Zn₂Cr-LDH is 1.18 nm. The value of saturation magnetization (M_s) is 20.5 emu/g. In addition, the amounts of adsorbed MO reached 1.54 mmol/g. Therefore, the material shows several advantages for the removal of pollutants.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 2168-2171
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.2168
• Online since: August 2013
• Authors: Dan Chen*, Xiao Long Ma, Yang Li
• Keywords: Anion Exchange, Fe₃O₄, Layered Double Hydroxides (LDHs), Methyl Orange, Microwave Hydrothermal Method

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