无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2010年
1期
40-44
,共5页
魏开伟%刘琦%程美令%袁晓卫%于丽丽%徐正
魏開偉%劉琦%程美令%袁曉衛%于麗麗%徐正
위개위%류기%정미령%원효위%우려려%서정
Fe_3O_4纳米粒子%磁性%叶酸%表面改性
Fe_3O_4納米粒子%磁性%葉痠%錶麵改性
Fe_3O_4납미입자%자성%협산%표면개성
Fe_3O_4 nanoparticles%magnetic properties%folic acid%surface modification
以FeCl_3·6H_2O作为单一铁源,1,6-己二胺作为胺化试剂,利用无模板的溶剂热方法制备了胺基功能化的磁性Fe_3O_4 纳米粒子,并利用其键合叶酸分子,制备出表面修饰了叶酸的磁性Fe_3O_4 复合纳米粒子.利用傅里叶变换红外光谱仪、X-射线衍射仪、透射电镜、差热-热重分析仪和振动样品磁强计对所得纳米粒子的形貌、粒径、化学组成和磁性能进行了表征.结果表明,叶酸分子通过化学键牢固键合在磁性纳米Fe_3O_4 粒子表面,叶酸修饰的复合纳米粒子仍然具有良好的磁性能.
以FeCl_3·6H_2O作為單一鐵源,1,6-己二胺作為胺化試劑,利用無模闆的溶劑熱方法製備瞭胺基功能化的磁性Fe_3O_4 納米粒子,併利用其鍵閤葉痠分子,製備齣錶麵脩飾瞭葉痠的磁性Fe_3O_4 複閤納米粒子.利用傅裏葉變換紅外光譜儀、X-射線衍射儀、透射電鏡、差熱-熱重分析儀和振動樣品磁彊計對所得納米粒子的形貌、粒徑、化學組成和磁性能進行瞭錶徵.結果錶明,葉痠分子通過化學鍵牢固鍵閤在磁性納米Fe_3O_4 粒子錶麵,葉痠脩飾的複閤納米粒子仍然具有良好的磁性能.
이FeCl_3·6H_2O작위단일철원,1,6-기이알작위알화시제,이용무모판적용제열방법제비료알기공능화적자성Fe_3O_4 납미입자,병이용기건합협산분자,제비출표면수식료협산적자성Fe_3O_4 복합납미입자.이용부리협변환홍외광보의、X-사선연사의、투사전경、차열-열중분석의화진동양품자강계대소득납미입자적형모、립경、화학조성화자성능진행료표정.결과표명,협산분자통과화학건뢰고건합재자성납미Fe_3O_4 입자표면,협산수식적복합납미입자잉연구유량호적자성능.
Amine-functionalized magnetite Fe_3O_4 nanoparticles were synthesized by a facile one-pot template-free amine,and magnetite Fe_3O_4 composite nanoparticles with folio acid (FA) molecules were synthesized by bonding of the amine-functionalized magnetite nanoparticles with folic acid molecules.The morphology,size,chemical component and magnetic property of as-prepared composite nanoparticles were characterized by Fourier transform infrared spectroscopy (FTIR),X-ray diffraction,transmission electron microscopy (TEM),thermogravimetry-differential scanning calorimeter (TG-DSC) and vibrating sample magnetometer (VSM).The results show that folic acid (FA) molecules are conjugated on the surface of magnetic Fe_3O_4 nanoparticles,and the composite nanoparticles have still good magnetic property after surface modification by folic acid.