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- Title
Superhydrophobic Mesoporous Graphene for Separation and Absorption.
- Authors
Fan, Zong‐Liang; Qin, Xiao‐Juan; Sun, Han‐Xue; Zhu, Zhao‐Qi; Pei, Chun‐juan; Liang, Wei‐Dong; Bao, Xue‐Mei; An, Jin; La, Pei‐Qing; Li, An; Deng, Wei‐Qiao
- Abstract
Mesoporous graphene with a surface area of 306 m2 g−1 was synthesized by employing CaCO3 microspheres as hard templates. By surface modification with polydimethylsiloxane (PDMS) through chemical vapor deposition, the wettability of as-treated mesoporous graphene can be tailored to be superhydrophobic to water while superoleophilic to oils. The deposition of the low-surface-energy silicon-coating originated from PDMS pyrolysis on porous graphene was confirmed by X-ray photoelectron spectroscopy. As a result of its porous structures and excellent surface superhydrophobicity, the PDMS-treated mesoporous graphene exhibits good selectivity, excellent recyclability, and good absorption performance (up to 66 g g−1) for a wide range of oils and organic solvents. Thus, leading to potential use in a variety of applications such as water treatment and purification as well as cleanup of oil spills.
- Subjects
GRAPHENE; SURFACE area; CALCIUM carbonate; MICROSPHERES; POLYDIMETHYLSILOXANE; VAPOR-plating
- Publication
ChemPlusChem, 2013, Vol 78, Issue 10, p1282
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.201300119