超分子协调的纳米过膜与四分位氨基环用于高/比盐水中高效地提取
Ning Gan1, Yuqing Lin2, Baolong Wu2
1School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China; School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China.
Water research
|November 4, 2024
概括
开发了具有协同离子通道的新型超分子膜,以从盐水废水中有效提取. 这些膜表现出高透率和特殊的/选择性,克服了传统的限制.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 离子选择性膜 (ISM) 对于盐水废水处理和资源回收至关重要.
- 开发具有高选择性和透性的特定离子的ISM,如,仍然是一个挑战.
研究的目的:
- 构建具有协同离子通道的新型超分子膜,以有效提取.
- 研究这些膜在水透性和离子选择性方面的性能.
主要方法:
- 功能性Cyclen (四元_1,4,7,10-tetraazacyclododecane,Q_Cyclen) 和Cu2+-m-Phenylenediamine (Cu2+-MPD) 的协调,以创建双周期的协同离子通道.
- 制造包含这些通道的超分子膜.
- 使用模拟的盐湖盐水测试膜性能.
主要成果:
- 优化的膜实现了19.2L·m−2·h−1·bar−1.1的水透率.
- 证明了高的Li+/Mg2+选择性 (18.5),超过了传统的纳米过极限.
- 在模拟盐水中,通过两阶段的工艺,成功地将Mg2+/Li+质量比从40降至1.1
结论:
- 开发出具有协同离子通道的超分子膜显示了从盐水源有效提取的高潜力.
- 这种方法验证了用于高性能ISM的内在子纳米化通道的宏环化合物的使用.
- 这些膜为资源回收和废水处理应用提供了有前途的解决方案.
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