Adsorptive Removal of Arsenic from Aqueous Solutions Using Amino Functionalized Super paramagnetic Iron Oxide Nanoparticle/SiO2

H. Noorizadeh, A. Farmany
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引用次数: 5

Abstract

The adsorption features of amino functionalized superparamagnetic iron oxide nanoparticle/SiO2 for selective removal of arsenic in water is studied. Amino functionalized superparamagnetic iron oxide nanoparticle/SiO2 is synthesized and characterized with Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and electron microscope (SEM). FTIR shows amine group successfully attached to nanoparticle. XRD-diffraction pattern show that the magnetic phase of superparamagnetic nanoparticle is magnetite by inverse spinel crystal structure. SEM image was used to study the morphology of superparamagnetic nanoparticle. The adsorption capability of the nanoparticle was examined in batch system. The nanoparticle was used for removal of arsenic in aqueous media. Adsorption experimental data showed that the adsorption of arsenic on the nanoparticle is depended on pH and contact time.
氨基功能化超顺磁性氧化铁纳米颗粒/SiO2吸附去除水溶液中的砷
研究了氨基功能化超顺磁性氧化铁纳米颗粒/SiO2选择性去除水中砷的吸附特性。合成了氨基功能化超顺磁性氧化铁纳米颗粒/SiO2,并用傅里叶变换红外光谱(FTIR)、x射线衍射(XRD)和电子显微镜(SEM)对其进行了表征。红外光谱显示胺基成功地附着在纳米颗粒上。xrd衍射图表明,超顺磁性纳米颗粒的磁相为尖晶石反晶结构的磁铁矿。利用扫描电镜(SEM)图像研究了超顺磁性纳米颗粒的形貌。在间歇系统中考察了纳米颗粒的吸附性能。研究了纳米颗粒对水中砷的去除效果。吸附实验数据表明,纳米颗粒对砷的吸附与pH和接触时间有关。
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