EDTA- and amine-functionalized graphene oxide as sorbents for Ni(II) removal

Caiyun Zhao; Lingjuan Ma; Jinmao You; Fengli Qu; Rodney D. Priestley

doi:10.1080/19443994.2015.1025438

EDTA- and amine-functionalized graphene oxide as sorbents for Ni(II) removal

Caiyun Zhao, Lingjuan Ma, Jinmao You, Fengli Qu, Rodney D. Priestley

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The adsorption behavior of Ni(II) onto graphene oxide (GO) derivatives N-(trimethoxysilylpropyl) ethylenediaminetriacetic acid-modified GO (EDTA-GO) and 3-Tri-methoxysilyl-propyl-diethylenetriamine (amine–silane)-modified GO (amine-GO) were investigated. The EDTA and amine groups significantly enhanced the Ni(II) adsorption capacity of GO. The experimental results illustrated that GO-based sorbents could selectively remove Ni(II) from contaminated water with a maximum adsorption capacity of 103 mg/g within 30–45 min. The influence of pH on the adsorption/desorption properties as well as reusability of the modified GO derivatives was also investigated. These results demonstrate the application of modified GO as an effective adsorbent for water protection.

Original language	English (US)
Pages (from-to)	8942-8951
Number of pages	10
Journal	Desalination and Water Treatment
Volume	57
Issue number	19
DOIs	https://doi.org/10.1080/19443994.2015.1025438
State	Published - Apr 20 2016

All Science Journal Classification (ASJC) codes

Water Science and Technology
Ocean Engineering
Pollution

Keywords

Adsorption
Graphene oxide
Nickel

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10.1080/19443994.2015.1025438

Cite this

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title = "EDTA- and amine-functionalized graphene oxide as sorbents for Ni(II) removal",

abstract = "The adsorption behavior of Ni(II) onto graphene oxide (GO) derivatives N-(trimethoxysilylpropyl) ethylenediaminetriacetic acid-modified GO (EDTA-GO) and 3-Tri-methoxysilyl-propyl-diethylenetriamine (amine–silane)-modified GO (amine-GO) were investigated. The EDTA and amine groups significantly enhanced the Ni(II) adsorption capacity of GO. The experimental results illustrated that GO-based sorbents could selectively remove Ni(II) from contaminated water with a maximum adsorption capacity of 103 mg/g within 30–45 min. The influence of pH on the adsorption/desorption properties as well as reusability of the modified GO derivatives was also investigated. These results demonstrate the application of modified GO as an effective adsorbent for water protection.",

keywords = "Adsorption, Graphene oxide, Nickel",

author = "Caiyun Zhao and Lingjuan Ma and Jinmao You and Fengli Qu and Priestley, {Rodney D.}",

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T1 - EDTA- and amine-functionalized graphene oxide as sorbents for Ni(II) removal

AU - Zhao, Caiyun

AU - Ma, Lingjuan

AU - You, Jinmao

AU - Qu, Fengli

AU - Priestley, Rodney D.

PY - 2016/4/20

Y1 - 2016/4/20

N2 - The adsorption behavior of Ni(II) onto graphene oxide (GO) derivatives N-(trimethoxysilylpropyl) ethylenediaminetriacetic acid-modified GO (EDTA-GO) and 3-Tri-methoxysilyl-propyl-diethylenetriamine (amine–silane)-modified GO (amine-GO) were investigated. The EDTA and amine groups significantly enhanced the Ni(II) adsorption capacity of GO. The experimental results illustrated that GO-based sorbents could selectively remove Ni(II) from contaminated water with a maximum adsorption capacity of 103 mg/g within 30–45 min. The influence of pH on the adsorption/desorption properties as well as reusability of the modified GO derivatives was also investigated. These results demonstrate the application of modified GO as an effective adsorbent for water protection.

AB - The adsorption behavior of Ni(II) onto graphene oxide (GO) derivatives N-(trimethoxysilylpropyl) ethylenediaminetriacetic acid-modified GO (EDTA-GO) and 3-Tri-methoxysilyl-propyl-diethylenetriamine (amine–silane)-modified GO (amine-GO) were investigated. The EDTA and amine groups significantly enhanced the Ni(II) adsorption capacity of GO. The experimental results illustrated that GO-based sorbents could selectively remove Ni(II) from contaminated water with a maximum adsorption capacity of 103 mg/g within 30–45 min. The influence of pH on the adsorption/desorption properties as well as reusability of the modified GO derivatives was also investigated. These results demonstrate the application of modified GO as an effective adsorbent for water protection.

KW - Adsorption

KW - Graphene oxide

KW - Nickel

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ER -

EDTA- and amine-functionalized graphene oxide as sorbents for Ni(II) removal

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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