Enhanced Cu(II) adsorption from aqueous solutions by sawdust (Quercus mongolica) pretreated by ionic liquid-water mixture

被引：1
|
作者：
Ma, Ningning [1 ]
Wei, Peng [2 ]
Wei, Ligang [1 ]
Ma, Yingchong [1 ]
Li, Kunlan [1 ]
Feng, Kun [1 ]
Wang, Yingqi [1 ]
机构：
[1] Dalian Polytech Univ, Sch Light Ind & Chem Engn, Dalian 116034, Peoples R China
[2] Dalian Prod Quality Superv Inspect Inst, Dalian 116034, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷
基金：
中国国家自然科学基金;
关键词：
Sawdust; ionic liquid; water; pretreatment; Cu(II); adsorption; LIGNOCELLULOSIC BIOMASS;
D O I：
10.4028/www.scientific.net/AMR.750-752.1354
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work investigated the feasibility of Quercus mongolica sawdust pretreated by an ionic liquid-water mixture as a biosorbent for Cup removal from aqueous solutions. Maximum Cu(II) biosorption of 32.6 mg/g is obtained at initial pH 4.3 using sawdust pretreated by a 1-butyl-3-methylimidazolium chloride ([C(4)mim]Cl)-water mixture (IL content 60%) at 90 degrees C, which is higher than that of unpretreated sawdust (23.0 mg/g, initial pH 6.1). The proposed method is effective in enhancing adsorption capacity of the in comparison to the conventional methods using sulfur acid or sodium hydroxide solutions.
引用
收藏
页码：1354 / +
页数：2
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