Chitosan-derived carbonaceous material for highly efficient adsorption of chromium (VI) from aqueous solution

文献类型： 外文期刊

第一作者： Shen, Feng

作者： Shen, Feng;Su, Jialei;Zhang, Keqiang;Qi, Xinhua;Zhang, Xiao

作者机构：

关键词： Cr(VI);Chitosan;Hydrothermal carbonization

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： A carbonaceous adsorbent for effectively removing Cr(VI) was synthesized by facile hydrothermal carbonization of chitosan (HTC-chitosan). The prepared HTC-chitosan exhibited good stability in acid solution while the amine groups were retained completely after simple and green hydrothermal carbonization treatment. Structure characteristics of the HTC-chitosan as well as its adsorption behaviors for Cr(VI) in aqueous solution were investigated. Under optimal conditions, the adsorption capacity of the HTC-chitosan for Cr(VI) reached as high as 388.60 mg g(-1), which was much higher than that of other materials reported previously. The prepared HTC-chitosan adsorbent could be reused at least five times with adsorption efficiency more than 92%. These results indicate that HTC-chitosan exhibited great superiority for Cr(VI) adsoption from aqueous solution both in terms of the preparation process and adsorption performance. (C) 2016 Elsevier B.V. All rights reserved.

分类号： Q71

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