通过使用酸盐聚合物骨干构建的ZIF-8将Cu (II) 与Ph有效吸附分离
Jie Song1, Lijun Chen1, Yingnan Zhou1
1Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, 710021 Xi'an, China.
International journal of biological macromolecules
|September 11, 2024
概括
一种新的核心外吸附剂,P-SMG@ZIF-8,有效地从废水中去除重金属离子如Cu (II) 和有机分子. 这种可重复使用的材料为工业用水净化提供了具有成本效益的解决方案.
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:
- 工业化增加了重金属和有机污染物的排放到废水中.
- 有效和可持续的废水处理方法至关重要.
- 像ZIF-8这样的金属有机框架 (MOF) 显示出对污染物去除的希望.
研究的目的:
- 合成一种新的核心外吸附材料,用于高效的废水处理.
- 为了研究合成材料的Cu (II) 和的吸附性能和机制.
- 评估吸附剂的可重复使用性和成本效益.
主要方法:
- 在酸骨干上ZIF-8的局部生长,以创建P-SMG@ZIF-8.
- 使用FTIR,XRD,SEM,UV-Vis和XPS进行表征.
- 吸附实验以确定最佳条件 (pH,接触时间,温度) 和动力学.
主要成果:
- P-SMG@ZIF-8在pH2.0,200分钟和298K时显示出Cu (II) (80.2%) 和 (65.6%) 的高去除效率.
- 吸附动力学遵循一个伪二次速率模型,与兰格穆尔等热法相一致.
- 的最大和吸附能力为Cu (II) 达到83.58 mg/g,而的最大和吸附能力为78.18 mg/g.
- 吸附剂被证明很容易分离和重复使用,表明其稳定性良好.
结论:
- 合成的P-SMG@ZIF-8是一种高效且可重复使用的吸附剂,用于从废水中去除Cu (II) 和.
- 该材料的性能与兰格穆尔和伪二次动力学一致,表明了化学吸收机制.
- 这种以天然产品为基础的材料为工业废水处理提供了具有成本效益和可持续性的解决方案.
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