One-pot hydrothermal preparation of graphene sponge for the removal of oils and organic solvents

被引：77

作者：

Wu, Ruihan ^{[1
]}

Yu, Baowei ^{[1
]}

Liu, Xiaoyang ^{[1
]}

Li, Hongliang ^{[1
]}

Wang, Weixuan ^{[1
]}

Chen, Lingyun ^{[1
]}

Bai, Yitong ^{[1
]}

Ming, Zhu ^{[1
]}

Yang, Sheng-Tao ^{[1
]}

机构：

[1] Southwest Univ Nationalities, Coll Chem & Environm Protect Engn, Chengdu 610041, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2016年 / 362卷

关键词：

Graphene sponge; Adsorption; Oil; Organic solvent; Water treatment; Nanotechnology; POLYURETHANE SPONGE; HIGHLY EFFICIENT; ADSORPTION; FOAM; COMPOSITE; SORBENT; OXIDE; PERFORMANCE;

D O I：

10.1016/j.apsusc.2015.11.215

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：

Graphene sponge (GS) has found applications in oil removal due to the hydrophobic nature of graphene sheets. Current hydrothermal preparations of GS use toxic reducing reagents, which might cause environmental pollution. In this study, we reported that graphene oxide (GO) could be hydrothermally reduced by glucose to form GS for the adsorption of oils and various organic solvents. Graphene sheets were reduced by glucose during the hydrothermal treatment and formed 3D porous structure. GS efficiently adsorbed organic solvents and oils with competitive adsorption capacities. GS was able to treat pollutants in pure liquid form and also in the simulated seawater. GS could be easily regenerated by evaporating or burning. After 10 cycles, the adsorption capacity still retained 77% by evaporating and 87% by burning. The implication to the applications of GS in water remediation is discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：56 / 62

页数：7

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