Covalently intercalated graphene oxide for oil-water separation

被引：43
|
作者：
Liu, Yun [1 ]
Zhou, Jie [1 ]
Zhu, Enwei [1 ]
Tang, Jian [1 ]
Liu, Xiaoheng [1 ]
Tang, Weihua [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ China, Nanjing 210094, Jiangsu, Peoples R China
来源：
CARBON | 2015年 / 82卷
基金：
中国国家自然科学基金; 国家教育部博士点专项基金资助;
关键词：
POLYHEDRAL OLIGOMERIC SILSESQUIOXANE; CARBON NANOTUBES; POSS; GRAPHITE; FUNCTIONALIZATION; NANOCOMPOSITES; COMPOSITES; SOLUBILITY; DISPERSION; CHEMISTRY;
D O I：
10.1016/j.carbon.2014.10.070
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report the transformation of hydrophilic graphene oxide (GO) sheets into superhydrophobic nanomaterial by direct esterification with epoxy-functionalized polyhedral oligomeric silsesquioxane (ePOSS). The covalently functionalized GO-ePOSS composite shows superhydrophobicity with a water/air contact angle of similar to 145 degrees. The highest dispersion limits for GO in selected organic solvents are obtained in the literature. The dispersion of GO-ePOSS can be extended to solvents with Hansen solubility parameters as low as 3.4. Efficient oil-water separation is also demonstrated by using a GO-ePOSS membrane. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：264 / 272
页数：9
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