Vertically aligned carbon nanotubes (VACNT) surfaces coated with polyethylene for enhanced dew harvesting

In this work we prepared vertically aligned carbon nanotubes (VACNT) based super-hydrophobic surfaces with enhanced dew condensation. Coating these VACNT with a nanometric polyethylene (PE) layer preserved morphology, but normalized surface energy increasing its super-hydrophobicity. Samples of as g...

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Bibliographic Details
Published in:Diamond and related materials 2020-08, Vol.107, p.107837, Article 107837
Main Authors: Pinheiro, Romário Araújo, Rosa, Filipe Menezes, Volú, Renê Martins, de Vasconcelos, Getúlio, Trava-Airoldi, Vladimir Jesus, Corat, Evaldo José
Format: Article
Language:English
Subjects:
Adhesion
Carbon dioxide
Carbon dioxide lasers
Carbon nanotubes
Coating
Collection
Condensation
Dew harvesting
Dew point
Hierarchical condensation
Hydrophobicity
Jumping condensation
Lasers
Low temperature
Morphology
Polyethylene
Polyethylenes
Super-hydrophobicity
Surface energy
Volumetric efficiency
Wetting
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Summary:In this work we prepared vertically aligned carbon nanotubes (VACNT) based super-hydrophobic surfaces with enhanced dew condensation. Coating these VACNT with a nanometric polyethylene (PE) layer preserved morphology, but normalized surface energy increasing its super-hydrophobicity. Samples of as grown VACNT with the PE coating (VACNT-PE samples) and VACNT samples treated by CO2 laser and with PE coating (VACNT/laser-PE samples) show a much higher condensation for low surface temperatures (TS 
ISSN:0925-9635
1879-0062
DOI:10.1016/j.diamond.2020.107837