A multi-functional oil-water separator from a selectively pre-wetted superamphiphobic paper

作者：Ge, Dengteng; Yang, Lili; Wang, Chenbo; Lee, Elaine; Zhang, Yongquan; Yang, Shu^*

来源：Chemical Communications, 2015, 51(28): 6149-6152.

DOI：10.1039/c4cc09813g

• UNDERWATER SUPEROLEOPHOBICITY
• COATED MESH
• MEMBRANES
• SUPERHYDROPHILICITY
• SUPERHYDROPHOBICITY
• SURFACES
• FILM

A multi-functional oil-water separator is prepared from a paper towel spray coated with superamphiphobic (i.e., superhydrophobic and superoleophobic) nanoparticles. After the separator is pre-wetted with ethanol, followed by water, water can be removed from the light oil-water mixture and emulsions by gravity with high separation efficiency (99.9%) and separation flux. Vice versa, heavy oil can be removed by gravity on an ethanol-oil pre-wetted SA-paper.

• 出版日期2015
• 单位哈尔滨工业大学