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Superhydrophobic and Superoleophilic Micro-Wrinkled Reduced Graphene Oxide as a Highly Portable and Recyclable Oil Sorbent

Version 2 2024-06-04, 00:27
Version 1 2016-05-13, 09:33
journal contribution
posted on 2024-06-04, 00:27 authored by C Feng, Z Yi, F She, W Gao, Z Peng, CJ Garvey, LF Dumée, Lingxue KongLingxue Kong
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.

History

Journal

ACS Applied Materials and Interfaces

Volume

8

Pagination

9977-9985

Location

United States

ISSN

1944-8244

eISSN

1944-8252

Language

English

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2016, ACS Publications

Issue

15

Publisher

AMER CHEMICAL SOC