| Nanoscale particle-droplet coalescence-induced jumping on superhydrophobic surfaces: Insights from molecular dynamics simulations | |
| Xue, Chao1; Han, Xiao1; Liu, Jingnan1; Hubao, A2; Yang, Zhibing2; Wang HL(王海龙)1,3 | |
| Corresponding Author | Hubao, A.([email protected]) ; Wang, Hailong([email protected]) |
| Source Publication | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 2024-11-20 | |
| Volume | 703Pages:12 |
| ISSN | 0927-7757 |
| Abstract | The removal of solid particles from superhydrophobic surfaces via coalescence-induced droplet jumping has gained increasing attention. However, the underlying mechanisms, especially the nanoscale dynamics of particledroplet coalescence, remain largely underexplored. In our research, we employ molecular dynamics simulations to investigate the influences of the radius, wettability, and arrangement of solid particles on the particle-droplet jumping velocity and energy conversion efficiency. We observe notable rotational motions during the jumping events. Our findings reveal that the arc length of the wetted area on spherical particles and the spreading time of droplets exhibit a power-law relationship. As the particle-to-droplet radius ratio increases, the jumping velocity and energy conversion efficiency initially increase but subsequently decrease. Moreover, enhanced particle wettability leads to an increase in jumping velocity while a slight decrease in translational energy conversion efficiency. The velocities of coalescence-induced particle-droplet jumping at the nanoscale are consistent with predictions from the momentum model. Significantly, our results show that the rotationally symmetric multiparticle arrangements can effectively enhance the jumping velocity and energy conversion efficiency, thus improving particle removal efficiency. Our study not only deepens the understanding of coalescence-induced particle-droplet jumping behaviors, but also provides a foundation for developing more effective particle removal strategies on superhydrophobic surfaces. |
| Keyword | Solid particles removal Nanoscale droplet-particle Coalescence-induced jumping Superhydrophobic surface Molecular dynamics |
| DOI | 10.1016/j.colsurfa.2024.135171 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001307965500001 |
| WOS Keyword | WETTABILITY ; DUST ; NANODROPLETS |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| Funding Project | National Natural Science Foundation of China[12172347] ; National Natural Science Foundation of China[12232016] ; National Natural Science Foundation of China[42377066] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Hubao, A. ; Wang, Hailong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96558 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China; 2.Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430072, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Xue, Chao,Han, Xiao,Liu, Jingnan,et al. Nanoscale particle-droplet coalescence-induced jumping on superhydrophobic surfaces: Insights from molecular dynamics simulations[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2024,703:12.Rp_Au:Hubao, A., Wang, Hailong |
| APA | Xue, Chao,Han, Xiao,Liu, Jingnan,Hubao, A,Yang, Zhibing,&王海龙.(2024).Nanoscale particle-droplet coalescence-induced jumping on superhydrophobic surfaces: Insights from molecular dynamics simulations.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,703,12. |
| MLA | Xue, Chao,et al."Nanoscale particle-droplet coalescence-induced jumping on superhydrophobic surfaces: Insights from molecular dynamics simulations".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 703(2024):12. |
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