Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles
Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles
复制标题
DOI：
10.1155/2013/861021
复制
发表时间：
2013-05
影响因子：
3
通讯作者：
Ying Li;N. Tang;F. Inagaki;C. Mukai;K. Hayakawa
中科院分区：
文献类型：
--
作者：
Ying Li;N. Tang;F. Inagaki;C. Mukai;K. Hayakawa
采用化学方法合成了1,3-二烷基咪唑离子液体，并在磁性纳米颗粒（MNPs）表面进行了简单的一步键合。通过透射电镜、热重分析、磁化和红外光谱对所得到的6种离子液体改性MNPs进行了表征，结果表明，由于纳米尺寸和离子液体高密度改性，所制备的MNPs具有较高的吸附能力。离子液体的烷基链长度和阴离子对MNPs在有机溶剂中的溶解度有很大影响。制备的MNPs对有机污染物、多环芳烃具有一定的萃取效率，同时MNPs的超顺磁性能使MNPs能较好地从水样中分离出来。
1,3-Dialkylimidazolium-based ionic liquids were chemically synthesized and bonded on the surface of magnetic nanoparticles (MNPs) with easy one-step reaction. The obtained six kinds of ionic liquid modified MNPs were characterized with transmission electron microscopy, thermogravimetric analysis, magnetization, and FTIR, which owned the high adsorption capacity due to the nanometer size and high-density modification with ionic liquids. Functionality of MNPs with ionic liquids greatly influenced the solubility of the MNPs with organic solvents depending on the alkyl chain length and the anions of the ionic liquids. Moreover, the obtained MNPs showed the specific extraction efficiency to organic pollutant, polycyclic aromatic hydrocarbons, while superparamagnetic property of the MNPs facilitated the convenient separation of MNPs from the bulks water samples.