Adsorption of chromium (VI) from aqueous solutions by cellulose modified with β-CD and quaternary ammonium groups

被引：131

作者：

Zhou, Yanmei ^{[1
]}

Jin, Qiang ^{[1
]}

Zhu, Tianwei ^{[1
]}

Akama, Yoshifumi ^{[2
]}

机构：

[1] Henan Univ, Coll Chem & Chem Engn, Inst Environm & Analyt Sci, Kaifeng 475004, Henan, Peoples R China

[2] Meisei Univ, Fac Sci & Engn, Dept Chem, Tokyo 1918506, Japan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2011年 / 187卷 / 1-3期

关键词：

Cr(VI); Modified cellulose; Removal; Adsorption; Isotherm; GLYCIDYL METHACRYLATE; REMOVAL; CR(VI); CYCLODEXTRIN; ADSORBENT; BEADS; BEHAVIOR; CR(III); GLUCOSE; FABRICS;

D O I：

10.1016/j.jhazmat.2011.01.025

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

Cellulose powder was grafted with the vinyl monomer glycidyl methacrylate using ceric ammonium nitrate as initiator and was further derived with beta-CD and quaternary ammonium groups to build Cell-g-GMA-beta-CDN+ adsorbent. Epoxy cellulose was made up of Cell-g-GMA and Cell-hydro-g-GMA, and was found to contain 3.71 mmol g(-1) epoxy groups. The adsorption process of the modified cellulose was described by the Langmuir model of adsorption well, and the maximum adsorption capacity of chromium (VI) reached 61.05 mg g(-1). The adsorption-desorption tests of beta-CDN+-type cellulose derivatives exhibited that the reproducibility of the adsorbent was well and the adsorbent could be reused five times at least. (C) 2011 Elsevier B.V. All rights reserved.

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页码：303 / 310

页数：8

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