基于聚乙烯胺的双功能海绵,用于从水溶液中吸附布洛芬
Xiaoyi Gou1,2, Zia Ahmad3, Zaijin You1,2
1College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China.
Polymers
|December 11, 2025
概括
一种新的四元化,功能化高分支聚乙烯胺海绵 (SHPEI-QP) 有效地从水中去除ibuprofen. 这种双功能吸附剂表现出高容量,快速动力学,以及在净化水中可再利用度极佳.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 吸附科学 吸附科学
背景情况:
- 像布洛芬 (IBU) 这样的无离子非类固醇抗炎药物是水中的新兴污染物.
- 需要有效和可重复使用的吸附剂来从水溶液中去除IBU.
研究的目的:
- 合成和表征一个四分化和基功能化的高分支聚乙烯胺基海绵 (SHPEI-QP).
- 评估SHPEI-QP的吸附性能,以从水中去除布洛芬.
主要方法:
- 通过使用聚乙烯胺和1,4-butanediol diglycidyl ether的冷聚合合成海绵.
- 功能化与四级氨基酸和基组的复醇二甲基乙烯和三甲基胺.
- 使用SEM,FT-IR,XPS和BET进行表征;吸附研究包括动力学和异热学.
主要成果:
- 成功合成了一种多孔的SHPEI-QP海绵 (77.2m2g-1表面积,25-100nm毛孔,pH9.38).
- 在pH值7.0下达到905.73毫克-1的IBU最大吸附能力.
- 证明了快速吸附动力学 (伪二次) 和兰慕尔异热适合,经过8个再生周期后>96%的效率.
结论:
- 双功能SHPEI-QP海绵通过离子交换和π-π相互作用有效地去除ibuprofen.
- 吸附剂具有出色的吸附能力,快速的动力学和良好的可重复使用性.
- SHPEI-QP 是一个有前途的材料,用于治理布洛芬污染的水.
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