...
首页> 外文期刊>RSC Advances >Facile synthesis of high dispersion gamma-Fe2O3-Au nanoparticles within mesoporous silica spheres
【24h】

Facile synthesis of high dispersion gamma-Fe2O3-Au nanoparticles within mesoporous silica spheres

机译:在介孔二氧化硅球体内轻松合成高分散度的γ-Fe2O3-Au纳米粒子

获取原文
获取原文并翻译 | 示例
           

摘要

High dispersion gamma-Fe2O3 combined with Au nanoparticles (denoted as gamma-Fe2O3-Au NPs) coated by mesoporous silica spheres (denoted as m-SiO2) were synthesized by a facile one-pot method process. The dispersion of gamma-Fe2O3 seed is extremely important to the formation of gamma-Fe2O3-Au@m-SiO2 composite, by using a certain amount of neutral beta-CD as stabilizing agent, high dispersion gamma-Fe2O3 NPs with 16 nm can be prepared. Besides, different number of gamma-Fe2O3-Au NPs within composite can be tuned with the addition amount of gamma-Fe2O3 seed. TEM images showed the ordered morphology, good dispersion, and uniform particle size of gamma-Fe2O3-Au NPs inside composite. Furthermore, XRD, M-H curves and N-2 sorption characterization confirmed gamma-Fe2O3-Au@m-SiO2 composite possessed good magnetic property, uniform mesopore distribution and high surface area.
机译:通过简便的一锅法合成了高分散度的γ-Fe2O3与Au纳米颗粒(称为γ-Fe2O3-AuNPs)包覆的介孔二氧化硅球(称为m-SiO2)。 γ-Fe2O3种子的分散对于形成gamma-Fe2O3-Au @ m-SiO2复合材料非常重要,通过使用一定量的中性β-CD作为稳定剂,可以形成16 nm的高分散性γ-Fe2O3NP。准备好了。此外,复合物中不同数量的γ-Fe2O3-AuNPs可以通过添加γ-Fe2O3种子的数量来调节。 TEM图像显示了复合材料内部γ-Fe2O3-AuNP的有序形态,良好的分散性和均匀的粒径。进一步的XRD,M-H曲线和N-2吸附特性证实了γ-Fe2O3-Au@ m-SiO2复合材料具有良好的磁性,中孔分布均匀,表面积大。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号