气凝胶
吸附
纳米纤维
纤维素
铵
化学工程
过滤(数学)
材料科学
可重用性
化学
有机化学
统计
工程类
数学
程序设计语言
软件
计算机科学
作者
Xu He,Long Cheng,Yaru Wang,Jing Zhao,Wei Zhang,Canhui Lu
标识
DOI:10.1016/j.carbpol.2014.05.020
摘要
An efficient heavy metal adsorbent from quaternary ammonium-functionalized cellulose nanofiber aerogels was successfully developed. The highly porous aerogel could well retain its large specific surface area, which allowed rapid and effective removal of Cr(VI) from contaminated water. The aerogel adsorbent became mechanically robust after chemical crosslinking. It could be easily separated from water after adsorption without complicated centrifugation or filtration process. With only 1 g of aerogel, more than 99% of Cr(VI) in 1 L of 1 mg/L solution could be removed in 50 min. Besides, the aerogel also exhibited excellent reusability.
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