• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Charged particle separation by an electrically tunable nanoporous membrane
【24h】

Charged particle separation by an electrically tunable nanoporous membrane

机译：通过电可调纳米多孔膜分离带电粒子

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

We study the applicability of an electrically tunable nanoporous semiconductor membrane for the separation of nanoparticles by charge. We show that this type of membrane can overcome one of the major shortcomings of nanoporous membrane applications for particle separation: the compromise between membrane selectivity and permeability. The computational model that we have developed describes the electrostatic potential distribution within the system and tracks the movement of the filtered particle using Brownian dynamics while taking into consideration effects from dielectrophoresis, fluid flow, and electric potentials. We found that for our specific pore geometry, the dielectrophoresis plays a negligible role in the particle dynamics. By comparing the results for charged and uncharged particles, we show that for the optimal combination of applied electrolyte and membrane biases the same membrane can effectively separate same-sized particles based on charge with a difference of up to 3 times in membrane permeability.
机译：我们研究了电可调纳米多孔半导体膜的电荷分离纳米颗粒的适用性。我们表明，这种类型的膜可以克服用于颗粒分离的纳米多孔膜应用的主要缺点之一：膜选择性和渗透性之间的折衷。我们开发的计算模型描述了系统内的静电势分布，并在考虑介电电泳，流体流动和电势的影响的同时，利用布朗动力学跟踪了过滤后的粒子的运动。我们发现，对于我们特定的孔几何形状，介电泳在颗粒动力学中起着微不足道的作用。通过比较带电粒子和不带电粒子的结果，我们发现，对于所施加的电解质和膜偏压的最佳组合，同一膜可以基于电荷有效地分离出同尺寸的粒子，膜渗透率的差异最多可达3倍。

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