基于抗微生物聚合物的化物 (zeolite imidazolate) 框架复合膜用于从废水和海水中提取
Huanhuan Tan1, Yang Tang1, Zewei Hou1
1National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Ministry of Education), Zhengzhou University, Zhengzhou 450002, China.
Journal of colloid and interface science
|August 4, 2024
概括
这项研究开发了一种新的复合膜,用于有效地从水中去除 (VI). 塔普-ZIF-60膜具有很高的吸附能力和稳定性,为环境修复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
- 纳米技术纳米技术
背景情况:
- 水中的 (VI) 污染对环境和健康构成重大风险.
- 开发高效和稳定的吸附剂用于提取仍然是一个关键的挑战.
研究的目的:
- 设计和合成一种用于有效吸附 (VI) 的新型复合膜.
- 为了研究开发的膜的吸附性能,稳定性和抗菌性质.
主要方法:
- 在经过修改的PVDF支上制造一个使用酸 (TA) 和3-aminopropyltriethoxysilane (APTES) 制造的焦化物 imidazolate框架-8 (ZIF-8) 复合膜.
- 在溶热方法中利用聚乙烯胺 (PEI) 桥接和温度调节来形成TAPP-ZIF-60膜.
- 评估了吸附能力,水透性,可重复使用性和对黄金葡萄球菌和大肠杆菌的抗菌活性.
主要成果:
- TAPP-ZIF-60膜在pH值8.0时具有153.68mg/g的高 (VI) 吸附能力.
- 获得了极好的水透性 (5459 L m−2 h−1 bar−1) 并在十个吸附-脱吸周期中表现出良好的稳定性.
- 复合膜对两种测试的细菌菌株都显示出显著的抑制作用.
结论:
- TAPP-ZIF-60复合膜是从水溶液中去除 (VI) 的高效吸附剂.
- 膜的稳定性,可重复使用性和固有的抗菌特性使其适用于水处理应用.
- 在TAPP-ZIF-60复合物和乌拉尼尔离子之间的协调被确定为高吸附能力的关键机制.
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