ABSTRACT: Oil spills in the sea have caused many serious environmental problems
worldwide. In this study, carbon nanotube (CNT) sponges were used to cleanup oil slicks
on sea waters. This method was compared with two traditional representative sorbents,
including polypropylene fiber fabric and woolen felt. The CNT sponges had a larger oil
sorption capacity than the other two sorbents. The maximum oil sorption capacity (Qm) of
the CNT sponge was 92.30 g/g, which was 12 to 13.5 times larger than the Qm of the other
two sorbents (the Qm of the polypropylene fiber fabric and woolen felt were 7.45 and 6.74
g/g, respectively). In addition, unlike the other two sorbents, the CNT sponge was superhydrophobic and did not adsorb any water during oil spill cleanup. CNT sponges arepotentially very useful for cleaning up oil spills from sea water.