Physicochemical Characterization of the Magnetic Fe3O4/MO-Intercalated-Layered Double Hydroxide Composite
Physicochemical Characterization of the Magnetic Fe3O4/MO-Intercalated-Layered Double Hydroxide Composite
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DOI：
10.4028/www.scientific.net/amr.734-737.2168
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发表时间：
2013-08
期刊：
影响因子：
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通讯作者：
Dan Chen;X. Ma;Yang Li
中科院分区：
文献类型：
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作者：
Dan Chen;X. Ma;Yang Li
以Fe3O4、层状双氢氧化物(LDH)和甲基橙(MO)为原料，合成了一种新型磁性Fe3O4/MO插层LDH复合材料。采用两步微波水热法和阴离子交换法制备了Fe3O4/Zn2CrLDH和Fe3O4/MO插层LDH。用X射线衍射仪(XRD)、傅里叶变换红外光谱(FT-IR)和振动样品磁强计(VSM)对样品进行了表征。后者表明，Zn2Cr-LDH的基面间距为1.18 nm。该材料的饱和磁化强度(Ms)为20.5emu/g，对MO的吸附量达到1.54 mmol/g，因此，该材料对污染物的去除具有一定的优势。
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 (Ms) 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.