吸附
膜
水溶液
化学工程
水溶液中的金属离子
纤维
化学
离子交换
材料科学
离子
色谱法
有机化学
生物化学
工程类
作者
Defang Teng,Yuanqiang Xu,Tienan Zhao,Xiaomin Zhang,Ying Li,Yongchun Zeng
标识
DOI:10.1016/j.jhazmat.2021.128004
摘要
Developing multi-functional media for effectively removing different contaminants coexisted in wastewater system is highly desired. Herein, zein, a natural protein possessing abundant functional groups in molecule, is chosen to be fabricated into micro/nanofibrous membranes as adsorbents and separation media. Zein fibers with novel groove ribbon structures, which possess better structural characteristics, are designed for obtaining good adsorption performance. The adsorption performances of zein fiber membranes are evaluated. The results show that zein fiber membranes have the adsorption capacities up to 94 g/g for motor oil, 168 mg/g for Congo red, and 189 mg/g for Pb2+ ion for 1000 mg/L initial solution concentration, showing considerable competitiveness as compared with the reported adsorbents. The zein membrane with groove ribbon fiber morphology exhibits optimal adsorption capability and can be attractive multi-functional separation media.
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