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[1]周红,朱明,潘志权,等.功能化四氧化三铁的合成和表征及其对钙离子的吸附[J].武汉工程大学学报,2013,(04):14-20.[doi:103969/jissn16742869201304004]
 ZHOU Hong,ZHU Ming,PAN Zhi quan,et al.Synthesis and adsorption of calcium ions of functionalized coreshell Fe3O4 nanoparticles[J].Journal of Wuhan Institute of Technology,2013,(04):14-20.[doi:103969/jissn16742869201304004]
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功能化四氧化三铁的合成和表征及其对钙离子的吸附(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年04期
页码:
14-20
栏目:
化学与化学工程
出版日期:
2013-04-30

文章信息/Info

Title:
Synthesis and adsorption of calcium ions of functionalized coreshell Fe3O4 nanoparticles
文章编号:
16742869(2013)04001407
作者:
周红朱明潘志权黄齐茂
武汉工程大学化工与制药学院,湖北 武汉 430074
Author(s):
ZHOU Hong ZHU MingPAN ZhiquanHUANG Qimao
School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430074,China
关键词:
磁性纳米颗粒合成表征钙离子 螯合能力
Keywords:
agnetic nanoparticles synthesis characterization calcium ion chelating property
分类号:
TQ110.3
DOI:
103969/jissn16742869201304004
文献标志码:
A
摘要:
结合磁性纳米颗粒及功能基团各自的特性,设计了具有可以螯合金属离子的功能型磁性纳米颗粒,以获得选择性高、操作简易且回收后可重复利用的钙离子吸附剂.以三氯化铁和硫酸亚铁为铁源,采用化学共沉淀法在氩气保护下制备磁性纳米颗粒四氧化三铁;通过硅烷化反应在磁性纳米颗粒上依次包覆二氧化硅及γ氨丙基三乙氧基硅烷.以甲基丙烯酸及乙二胺为原料通过迈克尔加成及酰胺化反应合成了含酰胺键、酯基、氨基功能基团的磁性纳米颗粒.X射线粉末衍射线、傅立叶红外、扫描电镜、热重分析、X射线光电子能谱等技术的分析结果表明已合成各中间体及功能化的纳米颗粒.原子吸收光谱研究表明该纳米颗粒可通过其配位基团按理论配比螯合钙离子.随着功能基含量的增加,吸附钙离子的能力也会随之增强,因此,含较多功能基的该类磁性纳米颗粒有望用作水中钙离子的吸附剂.
Abstract:
Combining the characters of magnetic nanoparticles and function groups, the functionalized magnetic nanoparticles having chelating ability were designed in order to obtain calcium(II) adsorbent having higher selectivity, easy operation and recovery. Fe3O4 magnetic nanoparticles were synthesized by chemical coprecipitation in argon atmosphere using FeCl3 and FeSO4·7H2O as iron sources. Magnetic nanoparticles orderly coated with silica (Fe3O4@SiO2) and (3aminopropyl) triethoxysilane (Fe3O4@SiO2—NH2) were prepared by silanization reaction. Amide/ester and amino groupscontaining magnetic nanoparticles were obtained through Michael addition and amidation reaction using methyl acrylate (MA) and ethylenediamine (EDA) as materials. The intermediates and the functionalized nanoparticles have been obtained, which have been confirmed by XRay diffraction, Fourier infrared spectroscopy, Scanning electron microscope (SEM), Thermogravimetric analysis, Xray photoelectron spectroscopyspectra. The study of atomic absorption spectrum shows that the nanoparticles chelate calcium ions in accordance with the theoretical proportionality. The ability to absorb calcium(II) increases with the increase of the content of the functional groups, so this kind of magnetic nanoparticles with higher content of functional groups has potential to be used as a adsorbent of calcium(II) in water.

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备注/Memo

备注/Memo:
基金项目:国家磷资源开发利用工程中心项目(K004);湖北省科技厅国际合作项目(2011BFA020)作者简介:周红(1962),女,湖南溆浦人,教授,博士,博士研究生导师.研究方向:无机纳米材料.第35卷第4期2013年04月武汉工程大学学报JWuhanInstTechVol35No4Apr.2013
更新日期/Last Update: 2013-05-18