Issue 3, 2023

Nano-droplet jumping due to surface wettability variation: molecular modeling approach

Abstract

The effect of substrate hydrophobicity on the dynamics of water nano-droplets is computationally studied using the molecular dynamics method. It is observed that the droplet moves upward by increasing the substrate hydrophobicity and then falls down onto the substrate, and during this process, the droplet–substrate interfacial area effectively declines. Moreover, the results indicate that above a critical substrate hydrophobicity, which depends on the droplet radius, the droplet completely detaches from the substrate. The droplet behavior is described at the molecular level using van der Waals attractions for the liquid–solid interface.

Graphical abstract: Nano-droplet jumping due to surface wettability variation: molecular modeling approach

Article information

Article type
Paper
Submitted
21 Nov 2022
Accepted
12 Dec 2022
First published
13 Dec 2022

Phys. Chem. Chem. Phys., 2023,25, 2161-2166

Nano-droplet jumping due to surface wettability variation: molecular modeling approach

M. Farrokhbin, S. Hashemzadeh Rizi and A. Lohrasebi, Phys. Chem. Chem. Phys., 2023, 25, 2161 DOI: 10.1039/D2CP05447G

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