Synthesis of three-dimensional graphene oxide foam for the removal of heavy metal ions

被引：88
|
作者：
Lei, Yinlin [1 ]
Chen, Fei [1 ]
Luo, Yunjie [1 ]
Zhang, Long [1 ,2 ]
机构：
[1] Zhejiang Univ, Ningbo Inst Technol, Sch Biotechnol & Chem Engn, Ningbo 315100, Zhejiang, Peoples R China
[2] Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2014年 / 593卷
关键词：
ADSORPTION; FILMS; WATER; ADSORBENTS; COMPOSITES; GRAPHITE; SPONGES; COPPER; RISE;
D O I：
10.1016/j.cplett.2013.12.066
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：
Three-dimensional free-standing graphene oxide foam (GOF) was explored as an exceptionally absorbent for the removal of heavy metal ions. GOF was prepared by direct oxidation of graphene foam (GF), and the GF was synthesized by microwave plasma chemical vapor deposition. The GOF processed a very high surface area (578.4 m(2)/g) and abundant oxygen functional groups with a rather low C/O ratio of 0.65. Evaluation of its adsorption capacity for the removal of heavy metal ions demonstrated that GOF had superior adsorption ability and good recyclability towards a wide range of metals ions, such as Zn2+, Fe3+, Pb2+, and Cd2+. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 127
页数：6
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