从水溶液中同时去除 (iii) 和 (v) 通过使用铁功能化聚烯:一种新的水处理方法
Rupkamal Chetia1, Shrutipriya Devi1, Nishant Shukla2
1Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, India.
ACS omega
|September 9, 2024
概括
这项研究引入了铁功能化聚乙烯 (PTh@Fe) 复合物,用于从水中去除有毒物种. 这种新型吸附剂有效地消除了As (III) 和As (V),为净化水提供了一个有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 地下水中的污染是影响数百万人的全球健康危机.
- 现有的水处理方法去除通常是低效或昂贵的.
研究的目的:
- 开发和评估一种新型的铁功能化聚乙烯 (PTh@Fe) 复合物,用于同时去除 (III) 和 (V).
- 用PTh@Fe复合物研究吸附机制,动力学和去除的热力学.
- 评估PTh@Fe复合物的实际适用性,用于水中的修复.
主要方法:
- 在聚烯聚合过程中通过减少FeCl2/FeCl3副产品合成PTh@Fe复合物.
- 系统地调查吸附参数:吸附剂剂量,pH值,初始度和接触时间.
- 吸附异热,动力和热力学分析;密度函数理论 (DFT) 计算以获得理论见解.
主要成果:
- PTh@Fe复合材料实现了高的去除效率:98.7%的 (III) 和98.8%的 (V).
- 最大吸附能力为7.57毫克/克的酸 (III) 和8.62毫克/克的酸 (V) (Langmuir模型).
- 吸附遵循伪二次动力学,是内热和自发的;DFT证实了吸附机制.
结论:
- 铁功能化聚烯复合物对于同时去除 (III) 和 (V) 是非常有效的.
- PTh@Fe复合物表现出优异的吸附性能,可重复使用性和对共存的离子的耐受性.
- 这种材料为污染水处理提供了一个有希望的,理论上支持的解决方案.
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