期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 23, 页码 6761-6769出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta00001j
关键词
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资金
- National Research Foundation of Korea (NRF)
- Ministry of Science, ICT & Future Planning, Korea
Materials with superhydrophobic and superoleophilic properties are exhibited naturally in lotus leaves. Inspired by lotus leaves, lotus leaf (LL) powder was used in this study to prepare a new type of bio-inspired, multi-purpose, environmental friendly and inexpensive instant superhydrophobic-superoleophilic hybrid. The cast hybrid surface exhibited almost complete superhydrophobicity (water contact angle (CA) > 175 degrees) on a variety of substrates and superoleophilicity (oil CA < 5 degrees) for various oils. The surface also exhibited excellent thermal stability and mesoporous structure, and became superhydrophilic on curing at 600 degrees C. A dip coated hybrid-poly(dimethylsiloxane) (PDMS) sponge exhibited very high selectivity and absorption capacity for a range of oils and organic solvents (2000 to 3600 w/w% to absorbent) in deionized water.
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