Abstract
A superhydrophobic marigold shape layered double hydroxide (LDH) film coated stainless steel mesh (SSM) was prepared by in-situ growth followed chemical modification in this work. The obtained SSM exhibited excellent superhydrophobicity, self-cleaning ability, physical and chemical durability, indicating the superior ability of adapting to outdoor environment. In addition, the obtained SSM also exhibited excellent corrosion resistance and the efficiency reached up to 97.3%. As for application evaluation, the obtained SSM could be applied in continuous oil-water separation with a high efficiency and flux after 50 times reuse (98.5% and 1800 L m−2 h−1 for chloroform-water mixture). More importantly, the obtained SSM exhibited a high intrusion pressure (5.39 kPa), which was helpful to the rapid separation of oil-water mixture. Consequently, the obtained superhydrophobic SSM offered a promise in solving practical application problems of oil-water separation in outdoor and thereby showed great potential in large-scale industrial applications.
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