• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >Chitosan-induced synthesis of magnetite nanoparticles via iron ions assembly
【24h】

Chitosan-induced synthesis of magnetite nanoparticles via iron ions assembly

机译：壳聚糖诱导的铁离子组装法合成磁铁矿纳米颗粒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Superparamagnetic magnetite nanoparticles were synthesized induced by chitosan hydrogel under ambient conditions via iron ions assembly, and the inducing effect of chitosan hydrogel was discussed. Results of X-ray diffraction and transmission electron microscopy indicate that the nanoparticles were inverse cubic spinel structure magnetite with diameter about 16 nm, and the superparamagnetic nanoparticles with narrow size distribution dispersed uniformly in chitosan. The magnetization measurements indicated that the nanoparticles showed the typical superparamagnetic behavior. The crystallinity, morphology, and magnetic properties of magnetite nanoparticles were remarkably influenced by the Ph values of iron ion solutions. The interaction between magnetite and chitosan was illustrated by FT-IR and thermogravimetric analysis, which concluded that the magnetite nanoparticles were coated by a chitosan layer via theamino groups of chitosan. The chitosan hydrogel assisted in the synthesis of superparamagnetic magnetite nanoparticles through chelation by amino groups.
机译：壳聚糖水凝胶在环境条件下通过铁离子组装合成了超顺磁性磁铁矿纳米粒子，并探讨了壳聚糖水凝胶的诱导作用。 X射线衍射和透射电镜观察结果表明，纳米粒子为直径16nm左右的倒立方尖晶石结构磁铁矿，粒径分布较窄的超顺磁性纳米粒子均匀分散在壳聚糖中。磁化测量表明，纳米颗粒表现出典型的超顺磁性行为。铁离子溶液的PH值显着影响磁铁矿纳米颗粒的结晶度，形态和磁性。 FT-IR和热重分析表明了磁铁矿与壳聚糖之间的相互作用，得出的结论是磁铁矿纳米粒子通过壳聚糖的氨基被壳聚糖层覆盖。壳聚糖水凝胶通过氨基的螯合协助合成超顺磁性磁铁矿纳米颗粒。

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