title: Superhydrophobic and Superoleophilic Micro-Wrinkled Reduced Graphene Oxide as a Highly Portable and Recyclable Oil Sorbent.
abstract: The potential of superhydrophobic and superoleophilic microwrinkled reduced graphene oxide (MWrGO) structures is here demonstrated for oil spill cleanup. The impact of the thickness of MWrGO films on the sorption performance of three different oils was investigated. Water contact angles across the MWrGO surfaces were found to exceed 150°, while oil could be easily absorbed by the microwrinkled structures of MWrGO within seconds after contact. Although the oil surface diffusion rate was not found to be dependent on the thickness of the graphene oxide films, the oil sorption capacity was the largest with the thinner MWrGO films due to the high surface area resulting from their fine surface texture. Furthermore, the composite films can be repeatedly used for at least 20 oil sorption-removal cycles without any notable loss in selectivity and uptake capacity. These MWrGO/elastomer composite films could be applied as a potential candidate material for future oil spill cleanup.
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Chunfang
authors.initials: C
authors.lastname: Feng
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Zhifeng
authors.initials: Z
authors.lastname: Yi
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Fenghua
authors.initials: F
authors.lastname: She
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Weimin
authors.initials: W
authors.lastname: Gao
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.|Agricultural Product Processing Research Institute (APPRI), Chinese Academy of Tropical Agricultural Sciences (CATAS) , Zhanjiang 524001, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Peng
authors.affiliation: Australian Nuclear Science and Technology Organisation (ANSTO) , Lucas Heights, New South Wales 2234, Australia.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Garvey
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Ludovic F
authors.initials: LF
authors.lastname: Dumée
authors.affiliation: Deakin University , Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
authors.forename: Lingxue
authors.initials: L
authors.lastname: Kong
keywords: chemical remediation; oil sorption; superhydrophobic; textured graphene; uperoleophilic; wrinkled reduced graphene oxide