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高效和有选择的从水溶液中去除阴离子和阴离子染料,通过多环德的纳米纤维膜

Mahmoud Aboelkheir¹, Tamer Uyar¹

¹Fiber Science Program, Department of Human Centered Design, College of Human Ecology, Cornell University, Ithaca, NY, 14853, USA.

Carbohydrate polymers

|January 29, 2026

概括

赛克洛德克斯特林纳米纤维膜可以选择性地吸附着染料. 通过静电吸引,PEI功能化膜对甲基色 (MO) 具有很高的容量,在循环中保持性能.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
环境科学环境科学

背景情况:

环极素 (CDs) 是天然的,无毒的循环寡糖.
纳米纤维膜 (NM) 为吸附应用提供了很大的表面积.

研究的目的:

为选择性染料吸附开发功能化的循环德克斯特林纳米纤维膜 (多CD NMs).
研究这些新型膜的吸附特性和稳定性.

主要方法:

循环德克斯的电,然后与1,2,3,4-butanetetracarboxylic acid (BTCA) 进行交叉连接或与聚乙烯胺 (PEI) 进行功能化.
膜结构和热稳定性的表征.
使用阴离子 (甲蓝) 和阴离子 (甲) 染料进行染料吸附研究,包括异热和循环实验.

主要成果:

BTCA交联的多CD NMs吸附了阴性染料,而PEI功能化的多CD NMs选择性地吸附了离子染料,如甲基色 (MO).
聚CD/PEI NM显示出高MO吸附能力814.30 mg/g,超过了PVA/PEI NMs.
吸附遵循兰格穆尔模型,由静电吸引驱动,膜在五个周期后保持了~90%的容量.

结论:

功能化的环氧烯纳米纤维膜对于选择性去除染料是有效的.
聚CD/PEI NM表现出优异的吸附能力和稳定性对阳离子染料.
环极素是开发高性能吸附材料的有价值成分.

关键词:

循环德克斯特林 (Cyclodextrin) 是一种循环德克斯特林.甲基色是一种色.甲基烯蓝色是什么颜色纳米纤维纳米纤维是一种聚乙烯胺氨酸的聚乙烯胺氨酸处理水处理水处理水处理

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