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

被引：26

作者：

Zhao, Caiyun ^{[1
]}

Ma, Lingjuan ^{[1
]}

You, Jinmao ^{[1
]}

Qu, Fengli ^{[1
,2
]}

Priestley, Rodney D. ^{[2
]}

机构：

[1] Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China

[2] Princeton Univ, Dept Chem & Biol Engn, Princeton, NJ 08544 USA

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 19期

基金：

中国国家自然科学基金;

关键词：

Graphene oxide; Adsorption; Nickel; WALLED CARBON NANOTUBES; AQUEOUS-SOLUTION; WATER-PURIFICATION; HEAVY-METALS; ADSORPTION; NICKEL(II); NANOPARTICLES; COMPOSITES; IONS; ADSORBENT;

D O I：

10.1080/19443994.2015.1025438

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

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 103mg/g within 30-45min. 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.

引用

页码：8942 / 8951

页数：10

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