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

页码：264 / 272

页数：9

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