...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Sol-Gel Science and Technology >Different sol-gel preparations of iron-doped TiO2 nanoparticles: characterization, photocatalytic activity and cytotoxicity
【24h】

Different sol-gel preparations of iron-doped TiO2 nanoparticles: characterization, photocatalytic activity and cytotoxicity

机译：掺杂铁的TiO2纳米粒子的不同溶胶-凝胶制备：表征，光催化活性和细胞毒性

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

Fe-doped TiO2 nanoparticles were prepared by sol-gel method using titanium tetraisopropoxide as the precursor of titania, 2-propanol as solvent, iron(III) chloride as dopant source through calcination at 350 A degrees C. Three different types of samples were synthesized. Samples were characterized by means of X-ray powder diffraction, diffuse reflectance spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller analysis. All the samples showed the typical structure of anatase plus an amount of brookite ranging from 25 to 35 wt%. The features of the particles, i.e., surface area and aggregation state, were influenced by the reagents ratio: Generally increasing the solvent volume with respect to the titanium precursors induced the formation of nanoparticles with high surface area and low aggregation. Photocatalytic activity of Fe-doped TiO2 nanopowders was evaluated through methylene blue degradation experiments conducted under simulated solar light irradiation. The cytotoxic potential of the three samples was evaluated in human umbilical vein endothelial cells.
机译：以四异丙醇钛为二氧化钛的前驱体，2-丙醇为溶剂，氯化铁（III）为掺杂源，通过溶胶-凝胶法制备了Fe掺杂的TiO2纳米粒子。在350 A的温度下进行煅烧。合成了三种不同类型的样品。通过X射线粉末衍射，漫反射光谱，扫描电子显微镜，Brunauer-Emmett-Teller分析来表征样品。所有样品均显示出锐钛矿的典型结构，加上板钛矿的含量为25％至35％（重量）。颗粒的特性，即表面积和聚集状态受试剂比率的影响：通常，相对于钛前体，增加溶剂体积会导致形成具有高表面积和低聚集的纳米颗粒。通过在模拟太阳光照射下进行的亚甲基蓝降解实验，评估了Fe掺杂的TiO2纳米粉的光催化活性。在人的脐静脉内皮细胞中评估了这三个样品的细胞毒性潜力。

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