Adsorption performance of amine functionalized cellulose grafted epichlorohydrin for the removal of nitrate from aqueous solutions

被引：47

作者：

Anirudhan, T. S. ^{[1
]}

Rauf, Tharun A. ^{[1
]}

机构：

[1] Univ Kerala, Dept Chem, Trivandrum 695581, Kerala, India

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2013年 / 19卷 / 05期

关键词：

Graft copolymer; Cellulose; Polyethylenimine; Nitrate; Adsorption/Desorption; ANION-EXCHANGER; PHOSPHATE; WATER; NITROGEN;

D O I：

10.1016/j.jiec.2013.01.036

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cellulose grafted epichlorohydrin (Cell-g-E) copolymer was synthesized and functionalization carried out using polyethylenimine (Cell-g-E/PEI). Characterization studies using FUR, XRD and TGA, confirmed the grafting and functionalization process. Batch adsorption reaction was carried out for removal/recovery of nitrate ions and maximum adsorption capacity was obtained at pH 4.5. Kinetic studies explained pseudo-second-order as the best fit. Isotherm studies conducted at different temperatures revealed applicability of Freundlich isotherm model. Comparative studies proved effectiveness of Cell-g-E/PEI to other reported adsorbents. The adsorption process was spontaneous and exothermic. Batch adsorption/desorption studies for over six cycles showed the repeatability and regeneration capability of the adsorbent. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：1659 / 1667

页数：9

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