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

页码：1354 / +

页数：2

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