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Ion Exchange01:17

Ion Exchange

1.1K
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...
1.1K
Intermolecular Forces03:13

Intermolecular Forces

68.6K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
68.6K
Dialysis01:15

Dialysis

1.6K
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
1.6K
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

1.7K
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
1.7K
Detergent Purification of Membrane Proteins01:18

Detergent Purification of Membrane Proteins

6.2K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
6.2K
Aquaporins01:25

Aquaporins

6.0K
Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
6.0K

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相关实验视频

Updated: Jan 6, 2026

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
07:32

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

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兹维特-MOF功能接口,使水过中的强离子和染料排斥成为可能.

Arshyn Zhengis1,2, Aigerim Ospanova1,3, Yenglik Amrenova1,4

  • 1Laboratory of Renewable Energy, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.

ACS applied materials & interfaces
|November 12, 2025
PubMed
概括

集成ZIF-8和SBMA的新型纳米复合物膜有效地从废水中去除有毒的重金属和染料. 这种耐用,高流量膜显示了先进的净水技术的重大前景.

关键词:
这里是ZIF-8的位置.染料的拒绝 染料的拒绝重金属的去除重金属的去除.膜过器的过方式是硫贝甲基酸盐的硫贝甲基酸盐采用了zwitterionic材料的使用方法.

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Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
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Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

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A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
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A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

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相关实验视频

Last Updated: Jan 6, 2026

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
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Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

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Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
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A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
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科学领域:

  • 材料科学 材料科学 材料科学
  • 环境工程 环境工程
  • 纳米技术纳米技术

背景情况:

  • 从废水中有效地去除重金属和染料对于环境保护至关重要.
  • 现有的净水技术在效率,选择性和耐用性方面面临挑战.

研究的目的:

  • 开发一个层次工程纳米复合材料膜,以有效地去除有毒的重金属和合成染料.
  • 为了研究焦化物伊米达酸框架-8 (ZIF-8) 和硫贝甲基酸 (SBMA) 在多烯二-多烯二利 (PAN-PVP) 矩阵中的整合.
  • 为了评估膜的性能,耐用性和底层机制.

主要方法:

  • 使用ZIF-8,SBMA,PAN和PVP制造一个纳米复合材料膜.
  • 对纯水流和重金属 (Cd,Cu,Pb) 和染料 (甲基色,甲蓝色) 的排斥性能测试.
  • 通过连续循环进行耐用性评估.
  • 使用FTIR,SEM,XRD,XPS和zeta潜力的材料表征.
  • 使用DFT和MD模拟的计算分析.

主要成果:

  • 膜实现了高纯水流量 (71.96 L·m−2·h−1).
  • 对于Cd (95.6%),Cu (93.3%),Pb (97.8%),甲基色 (98.9%) 和甲基蓝色 (98.4%) 观察到非常好的排斥效率.
  • 膜在10个循环后保持了~93%的性能,显示出高耐用性.
  • 鉴定证实了成功的ZIF-8和SBMA集成和化学稳定性.
  • 模拟提供了对污染物相互作用的分子层面见解.

结论:

  • 开发的ZIF-8/SBMA纳米复合材料膜为废水处理提供了一个有前途的解决方案.
  • 膜表现出高流量,选择性和强度,用于去除各种污染物.
  • 这项工作提供了一个可调节和可扩展的平台,用于先进的水净化和机械理解.