Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Ion Exchange01:17

Ion Exchange

546
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...
546
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

14.3K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
14.3K
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

62.2K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
62.2K
Precipitation of Ions03:11

Precipitation of Ions

27.6K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
27.6K
Ionic Strength: Overview01:12

Ionic Strength: Overview

1.3K
The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...
1.3K
Electrolysis03:00

Electrolysis

26.0K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Partial Amorphization of Proton-Conducting Perovskites Triggers Interfacial Water Optimization to Boost Proton Transfer Kinetics for PEM Electrolysis.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Strain-Engineered FeN<sub>4</sub> Sites Accelerate Singlet Oxygen Formation in Fenton-Like Reactions.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

A Monocyte-Targeted Nanoplatform for Phagocytosis Activation and Ferroptosis Inhibition in Intracerebral Hemorrhage.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Small-molecule PCSK9 inhibition enhances BBB amyloid-β clearance and suppresses microglial inflammation in Alzheimer's disease models.

Scientific reports·2026
Same author

Synergistic Etching-Complexation Surface Reconstruction Induced by Dual Organic Acids toward High-Performance Lithium-Rich Manganese-Based Cathodes.

ACS applied materials & interfaces·2026
Same author

Differential Performance of Distribution Shifts Between Endangered Coniferous and Broad-Leaved Tree Species in Subtropical China Under Climate Change.

Plants (Basel, Switzerland)·2026

相关实验视频

Updated: Jun 4, 2025

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

10.5K

聚离子电解质电离化淡化使持续太阳蒸发性能更强大.

Fengyong Lv1, Jie Miao1,2, Zhongyu Wang1

  • 1School of Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai, 201418, China.

Advanced materials (Deerfield Beach, Fla.)
|December 18, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的石墨烯氧化物太阳能蒸发器,具有聚离子电解质功能,用于从盐水中有效和持久地生产淡水. 创新的设计增强了耐盐性,并防止了结晶,从而实现了长期的高性能海水淡化.

关键词:
唐南平衡效应 唐南平衡效应离子化 淡化 盐水处理聚离子电解质功能化功能化太阳的表面间蒸发.超性等级金属铜泡蒸发器

更多相关视频

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.4K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

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

Published on: February 23, 2017

8.4K

相关实验视频

Last Updated: Jun 4, 2025

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

10.5K
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.4K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

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

Published on: February 23, 2017

8.4K

科学领域:

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

背景情况:

  • 太阳能蒸发提供了一种可持续的方法,可以从海水和废水中生产淡水.
  • 传统的太阳能蒸发器具有较差的耐盐性和腐蚀性,这限制了它们在高盐度环境中的实际应用.
  • 开发可持续和高效的太阳能海水淡化技术对于解决全球缺水问题至关重要.

研究的目的:

  • 开发一种新型的太阳能蒸发器,增强耐盐性和长期稳定性,以实现高效的海水淡化.
  • 调查聚离子电解质功能化的有效性,以防止盐结晶和提高蒸发器性能.
  • 展示一种可持续且具有成本效益的解决方案,用于从盐水中生产淡水.

主要方法:

  • 一个3D超性石墨烯氧化物太阳能蒸发器的制造.
  • 蒸发器的功能化使用聚乙烯硫酸盐 (一种聚离子电解质) 的层次静态沉积.
  • 利用唐南平衡效应来调节离子流量并最大限度地减少盐的结晶.
  • 在太阳辐射下测试蒸发器在盐水 (15‰盐度) 和天然海水 (9‰盐度) 中的性能.

主要成果:

  • 实现了稳定的蒸发速度高达1.68公斤m-2h-1.1.
  • 经过证明的长期运行:在盐水中长达10天,在海水中长达3天.
  • 保持了大约90%的高蒸发效率.
  • 通过聚离子电解质功能化,成功阻碍了局部盐结晶.

结论:

  • 聚离子电解质功能化是一种高度有效的策略,可以提高太阳能蒸发器的盐阻力和耐用性.
  • 开发的石墨烯氧化物蒸发器提供了优良和稳定的海水淡化性能,为实际的太阳能水净化铺平了道路.
  • 这种方法在推进可持续海水淡化和废水处理技术方面具有重大潜力.