功能化HKUST-1金属有机框架用于高性能吸附
Nada M Hashad1, Mostafa Y Nassar2, Hossam S Jahin3,4
1Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom 32512 Egypt ahmedphysical90@gmail.com +20 1090674437.
RSC advances
|November 28, 2025
概括
尿素功能化HKUST-1 (HKUST-1@尿素) 有效地从水中去除离子 (Pb2+). 这种新型材料具有高吸附能力和出色的可重复使用性,为重金属整治提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术 纳米技术
背景情况:
- 重金属污染,特别是 (Pb2+),对环境和健康构成重大危害.
- 有效的水资源整治策略对于减轻这些风险至关重要.
研究的目的:
- 为了合成和比较原始的HKUST-1和用尿素功能化的HKUST-1 (HKUST-1@Urea) 对于Pb2+的去除.
- 研究HKUST-1@Urea用于整治的结构,吸附和热力学特性.
主要方法:
- 合成原始的HKUST-1和HKUST-1@Urea. 的合成.
- 使用XRD,FT-IR和SEM进行表征.
- Pb2+吸附实验,同热和运动建模,以及热力学分析.
主要成果:
- 由于尿素功能化,HKUST-1@尿素表现出增强的水友性和增加的吸附部位.
- 在45分钟内,HKUST-1@Urea实现了98%的Pb2+去除,容量为400毫克-1g.
- 吸附遵循伪二次动力学和兰迈尔异热,表明自发,内热和物理吸附驱动的过程.
结论:
- HKUST-1@尿素是一种高效,稳定,可重复使用的吸附剂,用于从水溶液中去除.
- 合成后的尿素修饰显著提高了HKUST-1在水净化方面的性能.
- HKUST-1@Urea为重金属整治提供了一个具有成本效益和可持续性的选择.
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