Eu 掺杂的磁性发光 Mg-Al 层状双氢氧化物及其对布洛芬的插层。

Magnetic, luminescent Eu-doped Mg-Al layered double hydroxide and its intercalation for ibuprofen.

机构信息

College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China.

出版信息

Chemistry. 2010 Dec 27;16(48):14404-11. doi: 10.1002/chem.201000602.

DOI:10.1002/chem.201000602

Abstract

A magnetic, luminescent Eu-doped Mg-Al layered double hydroxide with ibuprofen (IBU) intercalated in the gallery has been successfully prepared by a simple coprecipitation method. The physicochemical properties of the samples were well characterized by powder XRD, TEM, FTIR, TGA, inductively coupled plasma MS (ICP-MS), vibrating sample magnetometry (VSM), and fluorospectrophotometry. The results revealed that Fe(3)O(4) nanoparticles are coated on the surface of layered double hydroxides and the obtained (Mg(2)Al(0.95)Eu(0.05))(Fe)-(IBU) sample exhibits both superparamagnetic and luminescent properties, with a saturation magnetization value of 1.86 emu g(-1) and a strong emission band at 610 nm, respectively. Additionally, it was found that the ibuprofen loading amount is about 31 % (w/w), and the intercalated ibuprofen possesses sustained release behavior when the magnetic, luminescent composite is immersed in simulated body fluid (SBF).

摘要

一种具有磁性和发光性的 Eu 掺杂 Mg-Al 层状双氢氧化物，其中间层插层有布洛芬（IBU），通过简单的共沉淀法成功制备。通过粉末 XRD、TEM、FTIR、TGA、电感耦合等离子体质谱（ICP-MS）、振动样品磁强计（VSM）和荧光分光光度法对样品的物理化学性质进行了很好的表征。结果表明，Fe3O4 纳米粒子包覆在层状双氢氧化物的表面，所得（Mg2Al0.95Eu0.05）（Fe）-（IBU）样品具有超顺磁性和发光性，饱和磁化强度值为 1.86 emu g-1，在 610nm 处有强发射带。此外，发现布洛芬的负载量约为 31%（w/w），当磁性发光复合材料浸入模拟体液（SBF）时，插层的布洛芬具有持续释放行为。