Oriented polycaprolactone-carbon black/SiO2 fibers with bionic superhydrophobic surfaces as a highly efficient oil–water separator

Inspired by the surface structure of rice leaves, an eco-friendly polycaprolactone-carbon black/SiO2 (PCL-C/SiO2) membrane with an oriented arrangement was successfully prepared. The oriented arrangement of PCL fibers was achieved by doping carbon black (CB) nanoparticles. Owing to the addition of carbon black, the SiO2 aerogel was uniformly dispersed along the PCL fiber, which generated a micro-/nanostructure of the bionic rice leaf. The PCL-C/SiO2 membrane showed superhydrophobicity, and the water contact angle was 169.0° ± 0.2°. For oil–water mixtures, the PCL-C/SiO2 membrane exhibited an ultrahigh separation efficiency of 99.93° ± 0.01% and a permeate flux of 19 000 ± 1000 L m−2 h−1. For water-in-oil emulsions with surfactant stabilization, the PCL-C/SiO2 membrane exhibited excellent separation efficiency (99.90% ± 0.01%) and permeate flux (4966.7 ± 152.8 L m−2 h−1). Furthermore, the PCL-C/SiO2 membrane showed superior cycling stability, self-cleaning properties, and resistance to wear and corrosion. This study presents a method for the controllable design of bionic polymer separation membranes.

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成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

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成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

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成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

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成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

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