双功能简斯膜用于多组件污染海水分离和回收
Xibiao Li1, Lan Jiang1,2,3, Xiaowei Li1,2,3
1Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
ACS applied materials & interfaces
|August 29, 2024
概括
一个新的Janus光热膜有效地将石油和纯水从污染的海水中分离出来. 这种由太阳能驱动的技术可以高效率地回收净化水,盐晶和轻油和重油.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 全球淡水短缺需要创新的海水淡化解决方案.
- 分离多组分油污污染的海水带来了重大的技术挑战.
- 现有的方法往往难以同时进行净化和石油回收.
研究的目的:
- 开发一种新的光热膜,用于同时进行太阳能淡化和油水分离.
- 为了应对石油污染海水中的多个组件的分离和回收的挑战.
- 为了创建一个高强度的Janus膜,具有量身定制的表面特性.
主要方法:
- 制造一个高强度的Janus光热膜,具有反向可湿性.
- 使用双水友/油友和水友/油友表面.
- 测试膜在太阳能淡化和多元组分混合物的油水分离中的性能.
主要成果:
- 在1.0阳光下达到2.06公斤m-2h-1的蒸发率.
- 证明了关键离子 (Na+,K+,Ca2+,Mg2+) 和盐晶回收率接近100%.
- 为各种轻油和重油实现了近100%的分离效率.
- 成功分离和回收净化水,盐晶,轻油和重油.
结论:
- 雅努斯光热膜提供双重功能,用于高效的太阳能淡化和油水分离.
- 这项技术显示出处理复杂的石油污染海水的巨大潜力.
- 开发出来的膜可以同时回收净化水,盐和油.
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