合成和描述具有潜力作为废水处理吸附材料的创新双网络水凝
Alexandra Vieru1, Onur Yilmaz2, Alina Gabriela Rusu1
1Petru Poni Institute of Macromolecular Chemistry, Romanian Academy, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania.
Polymers
|February 26, 2025
概括
创新的双网 (DN) 水凝被开发用于皮革染料废水处理. 这些pH敏感的超吸收剂对阳离子染料具有很高的吸收能力,为工业废水管理提供了一个有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物科学 聚合物科学
背景情况:
- 工业废水,特别是来自皮革染色的废水,由于排放污染物,造成了严重的环境和健康风险.
- 有效的处理方法对于减轻工业废水对生态的影响至关重要.
- 开发用于有效去除污染物的先进材料是环境修复研究的一个关键领域.
研究的目的:
- 合成和表征具有pH敏感性质的新型双网 (DN) 水凝.
- 评估这些DN水凝作为皮革染料废水处理吸附剂的有效性.
- 为了研究阳离子染料的吸附机制和吸附能力.
主要方法:
- 通过基性聚合,制备聚,N,N-二甲基乙甲基酸盐 (PDMAEMA).
- 一个超分子网络的联合组装和物理交叉链接形成相互透的DN水凝.
- 使用FTIR,SEM,TGA和胀度测量的物理化学表征.
- 染料吸附性研究,以评估在不同条件下的性能 (pH,吸附剂剂量).
主要成果:
- 合成的DN水凝表现出相互连接的巨孔结构和出色的热稳定性.
- 在pH3时观察到超吸收性行为,表明显著的胀.
- 吸附动力学遵循伪第一阶模型 (PFO).
- 对于PDMAEMA,最大吸附能力达到了451 mg g-1;对于离子染料的DN凝,最大吸附能力达到了545 mg g-1.
结论:
- 开发的DN水凝作为废水处理中的离子染料的吸附剂表现出卓越的性能.
- 它们的pH敏感性和高吸附能力使它们适用于工业废水整治.
- 本研究提出了一种新的方法来设计用于环境应用的先进水凝材料.
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