Preparation of a freestanding, macroporous reduced graphene oxide film as an efficient and recyclable sorbent for oils and organic solvents

Seung Jae Yang, Jong Hun Kang, Haesol Jung, Taehoon Kim, Chong Rae Park

Research output: Contribution to journalArticlepeer-review

84 Scopus citations

Abstract

In this work, we report the preparation of reduced graphene oxide (rGO)-based freestanding recyclable oil adsorbents via an environmentally friendly one-step low-temperature thermal reduction process. The heating rate was adjusted to successfully control the macroporosity of the rGO films (rGOFs), thereby modulating the adsorption behaviors. The adsorption capacities for a variety of organic solvents and oil species, measured as the percentage weight gain, were measured. Adsorption capacities up to 4500% of the initial rGOF weight were achieved. The films displayed excellent stability over 10 cycles of use and regeneration without incurring significant structural damage or a decrease in the oil adsorption properties. These results suggested that the rGOF-based oil adsorbents may potentially be useful as next-generation oil adsorbent materials for the remediation of the maritime ecosystem in the wake of a massive oil spill.

Original languageEnglish
Pages (from-to)9427-9432
Number of pages6
JournalJournal of Materials Chemistry A
Volume1
Issue number33
DOIs
StatePublished - 7 Sep 2013
Externally publishedYes

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