中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 非线性力学国家重点实验室
Nanoscale particle-droplet coalescence-induced jumping on superhydrophobic surfaces: Insights from molecular dynamics simulations

文献类型：期刊论文

作者Xue, Chao3; Han, Xiao3; Liu, Jingnan3; Hubao, A.2; Yang, Zhibing2; Wang, Hailong1,3
刊名COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
出版日期2024-11-20
卷号703页码:12
关键词Solid particles removal Nanoscale droplet-particle Coalescence-induced jumping Superhydrophobic surface Molecular dynamics
ISSN号0927-7757
DOI10.1016/j.colsurfa.2024.135171
通讯作者Hubao, A.(a_hubao@whu.edu) ; Wang, Hailong(hailwang@ustc.edu.cn)
英文摘要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.
WOS关键词WETTABILITY ; DUST ; NANODROPLETS
资助项目National Natural Science Foundation of China[12172347] ; National Natural Science Foundation of China[12232016] ; National Natural Science Foundation of China[42377066]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001307965500001
资助机构National Natural Science Foundation of China
源URL[http://dspace.imech.ac.cn/handle/311007/96557]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Hubao, A.; Wang, Hailong
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China
2.Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430072, Peoples R China
3.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China
推荐引用方式
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.
APA Xue, Chao,Han, Xiao,Liu, Jingnan,Hubao, A.,Yang, Zhibing,&Wang, Hailong.(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.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。