新的硫化共价有机框架,用于高效地从水中去除酸
Mohammad Khosravani1, Mohsen Dehghani Ghanatghestani1, Farid Moeinpour2
1Department of Environment, Faculty of Natural Resources, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran.
Heliyon
|February 14, 2024
概括
一种新型吸附剂,TFPOTDB-SO3H,有效地从水中去除有毒. 这种材料具有高容量,快速吸附和可重复使用性,为污染提供了有希望的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 水中的污染对人类健康和生态系统构成重大风险.
- 从水中有效地去除有毒金属对于环境保护至关重要.
研究的目的:
- 合成和评估一种新型吸附剂TFPOTDB-SO3H,用于有效地从水溶液中去除 (III) 离子.
- 为了研究合成吸附剂的吸附性能,动力学,热力学和可重复使用性.
主要方法:
- 通过2,5-胺二硫酸和2,4,6-三4-甲基) -1,3,5-三的组合合成TFPOTDB-SO3H.
- 批量吸附实验,以确定pH值,接触时间和共存离子的影响.
- 使用准二阶模型分析吸附动力学,使用兰格穆尔模型分析等热量.
- 热力学研究和循环吸附-脱附试验,以评估可重复使用性.
主要成果:
- 在pH 8和室温下,TFPOTDB-SO3H在10分钟内实现了高97.1%的 (III) 清除率.
- 发现最大吸附能力为344.8mg/g,同时存在的离子对其的影响最小 (1-7%的减少).
- 吸附遵循伪二次动力学和兰木尔等温法,表明单层化学吸附.
- 吸附剂在4个吸附-脱吸周期后保持了88.86%的吸收效率,显示出出色的重复使用性.
结论:
- TFPOTDB-SO3H是一种高效且可重复使用的吸附剂,用于从废水中去除.
- 该材料具有出色的吸附能力,快速动力学和稳定性,使其成为实际水处理应用的有希望的候选者.
- 该研究强调了功能化的基于三的材料在减轻污染方面的潜力.
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