坚固的醇链接共价有机框架用于具有高选择性和灵敏度的水传感
Kewei Wang1, Zhaoxia Wu1, Na Ji1
1Department of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China.
Molecules (Basel, Switzerland)
|April 13, 2024
概括
一个新的与醇结合的共价有机框架 (TZ-COF-6) 作为一个高度稳定的视觉传感器来检测水. 这种材料在有机溶剂中提供快速,选择性的水检测,随着时间的推移提供了出色的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学传感器 化学传感器
- 纳米技术 纳米技术
背景情况:
- 共价有机框架 (COF) 对开发传感器非常有价值.
- 色COF可以轻松检测水.
- 在各种应用中需要选择性和稳定的水传感器.
研究的目的:
- 设计和合成一种具有色特性的新型亚结合COF (TZ-COF-6).
- 为了评估TZ-COF-6作为水检测传感器.
- 评估TZ-COF-6的稳定性,选择性和敏感性.
主要方法:
- 通过三组分反应 (氨基,化物,硫) 合成TZ-COF-6.
- 描述TZ-COF-6的结构,结晶性和稳定性.
- 使用视觉颜色变化和UV-vis DRS测试水感应能力.
- 在极性有机溶剂的存在下评估性能,并评估检测极限 (LOD).
主要成果:
- TZ-COF-6具有很大的表面积,高稳定性和出色的结晶性.
- 在水质突变时,视觉颜色变化 (从黄色到红色).
- 在有机溶剂中检测水的高选择性和灵敏性 (在DMF中LOD低至0.06%).
- 在8个月和15个循环后保持了结晶性和检测效率.
结论:
- TZ-COF-6是一种有前途的水色材料,用于选择性和敏感的水检测.
- 传感器表现出卓越的长期稳定性和可重复使用性.
- 这种COF提供了一种简单快速的方法来检测有机介质中的微量水.
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