Radiation synthesis of spherical cellulose-based adsorbent for efficient adsorption and detoxification of Cr(VI)

被引：43

作者：

Dong, Zhen ^{[1
,2
]}

Zhao, Jing ^{[2
]}

Du, Jifu ^{[2
]}

Li, Cancan ^{[2
]}

Zhao, Long ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China

[2] Hubei Univ Sci & Technol, Nonpower Nucl Technol Collaborat Innovat Ctr, Xianning 437100, Peoples R China

来源：

RADIATION PHYSICS AND CHEMISTRY | 2016年 / 126卷

基金：

中国国家自然科学基金;

关键词：

Spherical cellulose; Radiation synthesis; Adsorption; Detoxification; HEXAVALENT CHROMIUM REMOVAL; QUATERNARY AMMONIUM GROUPS; AQUEOUS-SOLUTION; GLYCIDYL METHACRYLATE; RAPID REMOVAL; REDUCTION; WATER; COMPLEXES; AEROGELS; SORPTION;

D O I：

10.1016/j.radphyschem.2016.05.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Spherical cellulose-based adsorbent (2-AMPR) with 2-aminomethyl pyridine was synthesized by radiation method. The adsorption behaviors of 2-AMPR for Cr(VI) removal were evaluated through batch and column experiments. The results presented that the adsorption kinetics well obeyed pseudo-second order mode and the adsorption isotherm of Cr(VI) followed the Langmuir model with adsorption capacity of 209.6 mg/g at optimal pH 2.0. Dynamical experiments revealed that the 2-AMPR could selectively and simultaneously separate and detoxify trace amount of Cr(VI) even from simulated electroplating wastewater including high concentration of Cu(II), Ni(II) and Zn(II) ions. Additionally, FTIR and XPS analysis verified that part of Cr(VI) was reduced to Cr(III) during adsorption process by adsorption reduction mechanism. (C) 2016 Elsevier Ltd. All rights reserved.

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页码：68 / 74

页数：7

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