Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 11, Pages 4107-4116Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta00170j
Keywords
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Funding
- National Natural Science Foundation of China [51575278]
- Special fund for the transformation of scientific and technological achievements in Jiangsu Province [BA2015054]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Lotus-inspired superhydrophobic coatings are usually mechanically weak and lack durability, this hinders their practical applications. A suspension that can be treated on various materials in any size and shape to form a mechanically durable superhydrophobic coating is developed, which retains water repellent properties after multiple cycles of abrasion, blade scratching, tape-peeling, repeated deformation, a series of environmental tests and recycling. Based on its superhydrophobicity under oil, two highly efficient systems were developed for oil purification - stirring and inverted cone systems. Small water drops converge on the coated surface that was immersed in oil through velocity-controlled stirring, or designing an inverted cone superhydrophobic surface under oil to collect water drops spontaneously. This coating can be readily used for practical applications to make a durable superhydrophobic coating that functions either in air or oils.
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