Kosior Dominik, Zawala Jan
Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, ul. Niezapominajek 8, Krakow, Poland.
Phys Chem Chem Phys. 2018 Jan 24;20(4):2403-2412. doi: 10.1039/c7cp06099h.
The influence of the initial adsorption coverage at the surface of an air bubble (radius 0.74 mm) formed at a capillary orifice on profiles of its rising velocities and shape variations was investigated in n-octanol, n-octyltrimethylammonium bromide (CTAB) and Tween80 solutions of different concentrations. The bubble formation and the degree of adsorption coverage at its surface at the moment of departure were controlled using an elaborated automatic bubble generator (Bubble-on-Demand) coupled with a programmable bubble trap, allowing adsorption time control over the motionless (captured) bubble interface. It was found that the degree of the initial bubble adsorption coverage (whose value was calculated according to the existing adsorption models), has a profound influence on the kinetics of the dynamic adsorption layer (DAL) development.
研究了在毛细管孔口形成的气泡（半径0.74毫米）表面的初始吸附覆盖率对其在不同浓度的正辛醇、正辛基三甲基溴化铵（CTAB）和吐温80溶液中上升速度和形状变化曲线的影响。使用精心设计的自动气泡发生器（按需气泡发生器）与可编程气泡捕集器相结合，控制气泡形成及其离开瞬间表面的吸附覆盖程度，从而能够控制静止（捕获）气泡界面的吸附时间。研究发现，初始气泡吸附覆盖率（其值根据现有吸附模型计算）对动态吸附层（DAL）的发展动力学有深远影响。
