PMID- 36816689
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230224
IS  - 2470-1343 (Electronic)
IS  - 2470-1343 (Linking)
VI  - 8
IP  - 6
DP  - 2023 Feb 14
TI  - Not All Sizes of Dust can be Removed by Jumping Condensates on Superhydrophobic 
      Surfaces.
PG  - 5731-5741
LID - 10.1021/acsomega.2c07328 [doi]
AB  - It is well known that superhydrophobic surfaces (SHSs) possess self-cleaning 
      ability, either by impacting or rolling water droplets or by self-propelled 
      jumping condensate. However, contaminants that are present in the air are 
      various. Is it possible that these contaminants can all be removed from SHSs by 
      jumping condensate? In this study, hydrophilic SiO(2) micro- or nanoparticles 
      with diameters larger than, comparable to, and smaller than the width of the 
      nanogaps of the SHS were first filled in the nanogaps or suspended on the 
      nanostructures with the help of ethanol, and the resulting SHS was exposed to 
      condensing water vapor. Direct observation through microscopy showed that jumping 
      condensation was still obvious on the SHS that were capped or filled with micro- 
      or nanoparticles. Scanning electron microscopy (SEM) imaging demonstrated that 
      following jumping condensation, particles that possessed diameters significantly 
      smaller or larger than the width of the nanogaps were both removed from the SHS. 
      However, most particles possessing diameters comparable to the width of the 
      nanogaps remained on the SHS. This confirms for the first time that not all 
      contaminants or dust can be removed from an SHS by self-propelled jumping 
      condensate. Furthermore, the study also simply demonstrates that vapor 
      condensation occurs within the nanogaps of the SHS. This study is helpful in 
      further understanding the mechanism of the self-cleaning caused by jumping 
      condensate and exploring the initial formation of condensate droplets on the SHS.
CI  - (c) 2023 The Authors. Published by American Chemical Society.
FAU - Li, Kangning
AU  - Li K
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
AD  - Jinhua Polytechnic, Jinhua 321007, China.
FAU - Ma, Dandan
AU  - Ma D
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
FAU - Zhu, Chenxi
AU  - Zhu C
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
FAU - Yang, Jintao
AU  - Yang J
AUID- ORCID: 0000-0002-3133-1246
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
FAU - Zhang, Jing
AU  - Zhang J
AUID- ORCID: 0000-0002-0245-7149
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
FAU - Feng, Jie
AU  - Feng J
AUID- ORCID: 0000-0001-7228-117X
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      Hangzhou 310014, China.
LA  - eng
PT  - Journal Article
DEP - 20230206
PL  - United States
TA  - ACS Omega
JT  - ACS omega
JID - 101691658
PMC - PMC9933225
COIS- The authors declare no competing financial interest.
EDAT- 2023/02/24 06:00
MHDA- 2023/02/24 06:01
PMCR- 2023/02/06
CRDT- 2023/02/23 09:25
PHST- 2022/11/15 00:00 [received]
PHST- 2023/01/23 00:00 [accepted]
PHST- 2023/02/23 09:25 [entrez]
PHST- 2023/02/24 06:00 [pubmed]
PHST- 2023/02/24 06:01 [medline]
PHST- 2023/02/06 00:00 [pmc-release]
AID - 10.1021/acsomega.2c07328 [doi]
PST - epublish
SO  - ACS Omega. 2023 Feb 6;8(6):5731-5741. doi: 10.1021/acsomega.2c07328. eCollection 
      2023 Feb 14.