相关实验视频
Updated: Jun 11, 2025

11:52
Microbubble Fabrication of Concave-porosity PDMS Beads
Published on: December 15, 2015
8.3K
盐度对大量水性电解质溶液中微气泡溶解的影响
Egor V Yakovlev1, Nikita P Kryuchkov1, Evgeny A Gorbunov2
1Bauman Moscow State Technical University, 2nd Baumanskaya str. 5/1, 105005 Moscow, Russia.
The Journal of chemical physics
|October 8, 2024
概括
增加盐度通过改变表面电荷来减缓微泡溶解,正如修改后的爱斯坦-普莱塞特理论和NaCl溶液所示. 这一发现影响了溶液物理学和软物质科学.
科学领域:
- 物理化学 物理化学
- 软物质物理学 软物质物理学
- 解决方案科学 解决方案科学
背景情况:
- 微气泡 (MBs) 在各种科学领域至关重要.
- 了解MB溶解动力学对于其应用至关重要.
- 电解质溶液显著影响MB的行为.
研究的目的:
- 为了研究盐度对微泡溶解动力学的影响.
- 阐明盐引起的MB溶解变化的潜在机制.
- 将实验结果与理论预测进行比较.
主要方法:
- 对微泡溶解的爱斯坦-普莱塞特理论的修改.
- 使用化 (NaCl) 水溶液进行实验调查.
- 微气泡有效表面电荷的估计.
主要成果:
- 增加的盐度明显减缓了微泡溶解的速度.
- 这项研究估计了微气泡的有效表面电荷.
- 实验结果与修改后的Poisson-Boltzmann理论的预测进行比较.
结论:
- 揭示了一个明确的机制,解释了盐度对微泡溶解的影响.
- 这些发现对溶液物理学和软/生物物质等领域有重大影响.
- 这项研究有助于更深入地了解微泡在电解质环境中的行为.
相关概念视频
Ionic Strength: Effects on Chemical Equilibria
1.4K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
In this solution, the primary...
1.4K
Solubility Equilibria: Overview
612
When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
Solubility is important in biological and environmental processes. A notable...
612
Common Ion Effect
41.3K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
41.3K
Physical Properties Affecting Solubility
22.5K
Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
22.5K
Solvents
64.4K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
64.4K
Factors Affecting Solubility
33.2K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
33.2K

