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Superhydrophobic Mesoporous Graphene for Separation and Absorption
Author(s) -
Fan ZongLiang,
Qin XiaoJuan,
Sun HanXue,
Zhu ZhaoQi,
Pei Chunjuan,
Liang WeiDong,
Bao XueMei,
An Jin,
La PeiQing,
Li An,
Deng WeiQiao
Publication year - 2013
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201300119
Subject(s) - graphene , materials science , mesoporous material , polydimethylsiloxane , chemical engineering , nanotechnology , chemical vapor deposition , wetting , mesoporous organosilica , contact angle , pyrolysis , surface modification , coating , x ray photoelectron spectroscopy , mesoporous silica , organic chemistry , composite material , catalysis , chemistry , engineering
Mesoporous graphene with a surface area of 306 m 2 g −1 was synthesized by employing CaCO 3 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.