title: Oil sorbents with high sorption capacity, oil/water selectivity and reusability for oil spill cleanup.
abstract: A sorbent for oil spill cleanup was prepared through a novel strategy by treating polyurethane sponges with silica sol and gasoline successively. The oil sorption capacity, oil/water selectivity, reusability and sorption mechanism of prepared sorbent were studied. The results showed that the prepared sorbent exhibited high sorption capacity and excellent oil/water selectivity. 1g of the prepared sorbent could adsorb more than 100 g of motor oil, while it only picks up less than 0.1 g of water from an oil-water interface under both static and dynamic conditions. More than 70% of the sorption capacity remained after 15 successive sorption-squeezing cycles, which suggests an extraordinary high reusability. The prepared sorbent is a better alternative of the commercial polypropylene sorbent which are being used nowadays.
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China.
authors.forename: Daxiong
authors.initials: D
authors.lastname: Wu
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China.
authors.forename: Linlin
authors.initials: L
authors.lastname: Fang
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China.
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Qin
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China.
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Wu
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China.
authors.forename: Changming
authors.initials: C
authors.lastname: Mao
authors.affiliation: Qingdao University of Science and Technology, Qingdao 266042, PR China. Electronic address: htzhu1970@163.com.
authors.forename: Haitao
authors.initials: H
authors.lastname: Zhu
mesh_terms: D000327:Adsorption; D010578:Petroleum / Q000032:analysis*; D059392:Petroleum Pollution; D011126:Polypropylenes; D011140:Polyurethanes; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical; D018508:Water Purification / Q000379:methods*
chemical_list: D010578:Petroleum; D011126:Polypropylenes; D011140:Polyurethanes; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Oil sorbent; Oil-spill cleanup; Oil/water selectivity; Reusability; Sorption capacity