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- Title
Laser-induced stainless steel mesh for high effective water/oil separation.
- Authors
Tianchi Chen; Hongtao Liu; Haifeng Yang; Wei Yan; Wei Zhu; Hao Liu; Kaijin Guo
- Abstract
The hierarchical micro/nano structures are successfully obtained on the stainless steel mesh via a simple laser direct writing technology. The as-prepared mesh reveals excellent superhydrophilic/underwater superoleophobic properties or superhydrophobic/superoleophilic properties after 1H, 1H, 2H, 2H-perfluorodecyltriisopropoxysilane modification. According to the oil density, the superhydrophilic/underwater superoleophobic mesh allows water to permeate and repels the light oil. Its oil/water separation efficiency is as high as 98.5% for the light oil. The superhydrophobic/superoleophilic mesh can be easily wetted by heavy oils while the water will be repelled, which the separation efficiency can reach 98.0% for the heavy oil. Moreover, this special wettability mesh can still maintain high separation efficiency after 20 separation cycles, which indicates the good separation stability.
- Subjects
METAL analysis; STAINLESS steel; SUPERHYDROPHOBIC surfaces; SURFACES (Technology); HEAVY oil; WETTING
- Publication
Micro & Nano Letters (Wiley-Blackwell), 2018, Vol 13, Issue 1, p72
- ISSN
1750-0443
- Publication type
Article
- DOI
10.1049/mnl.2016.0802