Adsorption kinetics and exchange of matter at liquid interfaces and microgravity

2007 ◽  
pp. 41-50
Author(s):  
H. Fruhner ◽  
K. Lunkenheimer ◽  
R. Miller
Keyword(s):  
Adsorption Kinetics ◽  
Liquid Interfaces

Soft repulsive interactions, particle rearrangements and size selection in the self-assembly of nanoparticles at liquid interfaces

2015 ◽  
Vol 181 ◽  
pp. 261-280 ◽  
Author(s):  
Konrad Schwenke ◽  
Emanuela Del Gado
Keyword(s):  
Adsorption Kinetics ◽  
Self Assembly ◽  
High Surface ◽  
Qualitative Change ◽  
Model Potential ◽  
Liquid Interfaces ◽  
Slow Dynamics ◽  
Irreversible Adsorption ◽  
Effective Interactions ◽  
Size Selection

In the adsorption of nanoparticles at liquid interfaces, soft and short ranged repulsive effective interactions between the nanoparticles at the interface may eventually induce crowding, slow dynamics and jamming at high surface coverage. These phenomena can interfere during the adsorption process, significantly slowing down its kinetics. Here, by means of numerical simulations, we find that modifying the effective interactions, which can be achieved for example by grafting differently functionalized polymer shells on the bare nanoparticles, may qualitatively change such interplay. In particular our results suggest that, in the presence of ultrasoft particle interactions such as the ones described by a Gaussian Core Model potential, a small size polydispersity can be sufficient to decouple the adsorption kinetics from the slow dynamics that develops at the interface, due to a qualitative change from an irreversible adsorption controlled by particle rearrangements at the interface to one dominated by size selection mechanisms. These findings may be useful to achieve higher surface coverages and faster adsorption kinetics.

Adsorption Kinetics of Asphaltenes at Liquid Interfaces

2002 ◽  
Vol 256 (2) ◽  
pp. 268-272 ◽  
Author(s):  
M. Jeribi ◽  
B. Almir-Assad ◽  
D. Langevin ◽  
I. Hénaut ◽  
J.F. Argillier
Keyword(s):  
Adsorption Kinetics ◽  
Liquid Interfaces ◽  
Kinetics Of

A New Adsorption Rate Equation in Batch Systems

2018 ◽  
Author(s):  
yongson hong ◽  
Kye-Ryong Sin ◽  
Jong-Su Pak ◽  
Chol-Min Pak
Keyword(s):  
Experimental Data ◽  
Kinetic Analysis ◽  
Adsorption Kinetics ◽  
Rate Equation ◽  
Kinetic Models ◽  
Adsorption Kinetic ◽  
Adsorption Rate ◽  
Batch Systems ◽  
New View

<p><b>In this paper, the deficiencies and cause of previous adsorption kinetic models were revealed, new adsorption rate equation has been proposed and its validities were verified by kinetic analysis of various experimental data.</b> <b>This work is a new view on the adsorption kinetics rather than a comment on the previous adsorption papers.</b></p>

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