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Spongy Graphene as a Highly Efficient and Recyclable Sorbent for Oils and Organic Solvents




Key words:spongy graphene;graphene;sorbents;oils;organic solvents

abstract
In this work, spongy graphene (SG), a shape-mouldable and nanoporous material with a high specific surface area used as a versatile and recyclable sorbent material, is proposed and studied. SG shows highly efficient absorption of not only petroleum products and fats, but also toxic solvents such as toluene and chloroform (up to 86 times of its own weight), requiring no further pretreatment, which is tens of times higher than that of conventional absorbers. Moreover, SG can be regenerated (>10 times) by heat treatment, yielding the full release of adsorbates (>99%). The present work suggests SG a widespread potential for applications in industry as well as topics regarding environmental protection.[ Last edited by nofrunolif on 2012-6-29 at 15:48 ]
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Acknowledgements
H.C.B. and X.X. contributed equally to this work. This work was
supported by the National Basic Research Program of China (Grant
Nos. 2011CB707601 and 2009CB623702), the National Natural
Science Foundation of China (Nos. 51071044, 60976003, 61006011
and 61106055), Specialized Research Fund for the Doctoral Program
of Higher Education (Nos. 20100092120021 and 20100092110014),
Program for New Century Excellent Talents in University (No. NCEF-
09-0293), Chinese Postdoctoral Fund (No. 2011M500081) and Open
Research Fund of State Key Laboratory of Bioelectronics.

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