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相关概念视频

Ion Exchange01:17

Ion Exchange

517
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
517
Membrane Fluidity01:23

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Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
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层次结构的多孔聚胺 - 胺基膜用于可切换的乳液分离.

Pengfei Zhang1, Bowen Li1,2, Ralph Rolly Gonzales1,3

  • 1Research Center for Membrane and Film Technology, Kobe University, Nada, Kobe, 657-8501, Japan.

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概括

研究人员开发了具有可切换超湿性的先进膜,用于高效的油性废水处理. 这些新的膜提供了高性能和自洁性能,使用简单的制造方法.

关键词:
层次性的多孔结构结构.油/水分离器的使用方法聚胺-胺多孔膜表面组成重组重组组织.可切换的超湿度可以切换.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 环境科学 环境科学
  • 化学工程是化学工程的重要组成部分.

背景情况:

  • 先进的膜对于高效的油性废水处理至关重要.
  • 设计具有可切换超湿性的膜面临着制造方面的挑战.
  • 现有的方法往往需要复杂的程序或外部能量输入.

研究的目的:

  • 开发一种用于制造可切换超湿膜的简单方法.
  • 研究这些膜在处理各种油/水乳液时的性能.
  • 为了证明节能和自我清洁的废水处理解决方案的潜力.

主要方法:

  • 使用非溶剂诱导的单阶段相分离方法与聚胺-胺基 (Torlon) 制造有孔的对称膜.
  • 使用表面化学成分重组,对两性聚合物进行重组.
  • 表面性质的表征包括超性,水下超性和低油超性.

主要成果:

  • 发达的膜表现出可切换的超湿性,包括在空气中的超性和在水/油中的超性/超性.
  • 通过重力驱动的工艺实现了超高的透率和分离效率,用于油中的水,油中的水和原油/水乳液.
  • 证明了出色的防和自清洁性能,在多个循环中稳定运行.

结论:

  • 创建可切换超湿膜的新且可扩展的策略已成功建立.
  • 这些膜为有效的油性废水处理提供了有希望的,节能的解决方案.
  • 这种方法在环境修复及其他领域有着广泛的潜在应用.