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Chemosphere. 2018 Mar;195:351-364. doi: 10.1016/j.chemosphere.2017.12.061. Epub 2017 Dec 19.

A review of functionalized carbon nanotubes and graphene for heavy metal adsorption from water: Preparation, application, and mechanism.

Author information

1
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China; Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, 15213, USA.
2
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China.
3
Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, 15213, USA.
4
Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China.
5
Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China. Electronic address: xuxinhua@zju.edu.cn.
6
School of Environment and Chemical Engineering, North China Electric Power University, Beijing, 102206, China.

Abstract

Carbon-based nanomaterials, especially carbon nanotubes and graphene, have drawn wide attention in recent years as novel materials for environmental applications. Notably, the functionalized derivatives of carbon nanotubes and graphene with high surface area and adsorption sites are proposed to remove heavy metals via adsorption, addressing the pressing pollution of heavy metal. This critical revies assesses the recent development of various functionalized carbon nanotubes and graphene that are used to remove heavy metals from contaminated water, including the preparation and characterization methods of functionalized carbon nanotubes and graphene, their applications for heavy metal adsorption, effects of water chemistry on the adsorption capacity, and decontamination mechanism. Future research directions have also been proposed with the goal of further improving their adsorption performance, the feasibility of industrial applications, and better simulating adsorption mechanisms.

KEYWORDS:

Adsorption; Carbon nanotube; Functionalized; Graphene; Heavy metals

[Indexed for MEDLINE]

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