Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by mercerized cellulose and mercerized sugarcane bagasse chemically modified with EDTA dianhydride (EDTAD)

被引：278

作者：

Karnitz Junior, Osvaldo ^{[1
]}

Alves Gurgel, Leandro Vinicius ^{[1
]}

de Freitas, Rossimiriarn Pereira ^{[2
]}

Gil, Laurent Frederic ^{[1
]}

机构：

[1] Univ Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, Brazil

[2] Univ Fed Minas Gerais, Inst Ciencias Exatas, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil

来源：

CARBOHYDRATE POLYMERS | 2009年 / 77卷 / 03期

关键词：

Adsorption; Mercerization; Modified sugarcane bagasse; Ethylenediaminetetraacetic dianhydride; Heavy metals; FLY-ASH; REMOVAL; WASTE; ION; COPPER; LEAD;

D O I：

10.1016/j.carbpol.2009.02.016

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

This work describes the preparation of new chelating materials derived from cellulose and sugarcane bagasse for adsorption of Cu2+, Cd2+, and Pb2+ ions from aqueous solutions. The first part involved the mercerization treatment of cellulose and sugarcane bagasse with NaOH 5 mol/L Non- and mercerized cellulose and sugarcane bagasse were then reacted with ethylenediaminetetraacetic dianhydride (EDTAD) in order to prepare different chelating materials. These materials were characterized by mass percent gain, X-ray diffraction, FTIR, and elemental analysis. The second part consisted of evaluating the adsorption capacity of these modified materials for Cu2+, Cd2+, and Pb2+ ions from aqueous single metal solutions, whose concentration was determined by atomic absorption spectroscopy. These materials als showed maximum adsorption capacities for Cu2+, Cd2+, and Pb2+ ions ranging from 38.8 to 92.6 mg/g, 87.7 to 149.0 mg/g, and 192.0 to 333.0 mg/g, respectively. The modified mercerized materials showed larger maximum adsorption capacities than modified non-mercerized materials. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：643 / 650

页数：8

共 31 条

[1]

Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by sugarcane bagasse and mercerized sugarcane bagasse chemically modified with succinic anhydride [J].