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A hydrophobic layer was formed on smooth surfaces of Calotropis gigantea fiber (CGF) and kapok fiber (KF) by adsorption of octadecyltrichlorosilane (OTS) from a toluene solution and then a comparative study was carried out on the basis of various characterizations and oil-absorbing performances for the two natural plant fibers. The resulting OTS-CGF and OTS-KF exhibit outstanding hydrophobic–oleophilic...
Cellulose-based lotus-leaf-like filter paper for selective separation of oil/water was prepared. Experimentally, cellulose nanofibril aerogel microspheres prepared by ultrasonic atomization method were coated on commercial filter papers to form unique “micro–nano” structured surface. By controlling both the morphology and chemistry of the surface, the papers could be either under-water superoleophobic...
Generation of efficient and reusable superhydrophobic and superoleophilic coatings for oil–water separation have received substantial interest in material science. In the present work, porous superhydrophobic and superoleophilic LLDPE and SiO2 + LLDPE coatings on cellulosic filter papers were fabricated using a solution casting technique. Surface morphology, water contact angle, and chemical composition...
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