Removal of Zn (II) ions by dialdehyde 8-aminoquinoline starch from aqueous solution

被引：27

作者：

Ding, Wen ^{[1
]}

Zhao, Ping ^{[1
]}

Li, Rong ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2011年 / 83卷 / 02期

关键词：

Dialdehyde starch; Dialdehyde 8 aminoquinoline starch; Zn (II); Adsorption; BIOMASS OEDOGONIUM SP; LOW-COST ADSORBENTS; WASTE-WATER; NI(II) IONS; ADSORPTION; CU(II); BIOSORPTION; ZINC; KINETICS; SORPTION;

D O I：

10.1016/j.carbpol.2010.08.057

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Dialdehyde 8-aminoquinoline starch (DASQA) was synthesized by the reaction of dialdehyde starch (DAS) and 8-aminoquinoline It was used to adsorb Zn (II) ions from aqueous solution DASQA was characterized by element analysis FT-IR spectra SEM and BET The results of FT-IR showed the difference between DAS and DASQA in the spectrum The adsorption study revealed that 120 min and pH 5 0 were the optimal conditions for adsorption of Zn2+. Maximum adsorption capacity was found to be 1 915 mmol/g The adsorption equilibrium data correlated well with the Langmuir isotherm model With the degree of substitution (DS) of the DASQA increased the adsorption capacity Increased gradually which can also be reflected in the results of BET Moreover higher temperature was preferable to the adsorption since it was endothermic (C) 2010 Elsevier Ltd All rights reserved

引用

页码：802 / 807

页数：6

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