纠的网状水凝具有巨孔拓通过冷凝,用于快速收集大气中的水
Jiajun Sun1,2, Feng Ni3, Jincui Gu1,2
1Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
Advanced materials (Deerfield Beach, Fla.)
|April 18, 2024
概括
具有纠网状结构的工程水凝显著提高了大气水收集效率. 这种冷凝方法增强了更快的水吸附和脱吸的动力学,有助于淡水生产.
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:
- 基于吸附的大气水收集 (SAWH) 为淡水短缺提供了解决方案.
- 液晶盐-凝复合材料 (HSHCs) 由于高吸水率和设计灵活性,显示出有前途.
- 在HSHC中,有限的质量运输会导致运动缓慢,阻碍SAWH的性能.
研究的目的:
- 开发一个通用的水凝网络工程战略,以改善SAWH动力学.
- 为了提高HSHCs的质量运输特性,以更快地吸收和脱水.
- 使用工程水凝来演示高性能SAWH系统.
主要方法:
- 使用冷凝方法制造纠网状水凝 (EMHs).
- 工程HSHCs与EMHs (HEMHs) 形成一个稳定的巨孔拓.
- 评估了HEMHs的吸水量,吸附/脱附动力学和淡水产量.
主要成果:
- 与传统的密集水凝 (CDH) 相比,冷凝方法产生的EMH具有增强的质量传输能力.
- HEMHs表现出明显更快的水分吸收和太阳能驱动的水分吸收动力学.
- 一个基于HEMHs的收割机在八个周期内实现了2.85 L水kgsorbents-1天-1的实际淡水输出.
结论:
- 通过冷化进行网络工程是一种有效的策略,可以克服HSHCs的动力限制.
- 开发的HEMH在SAWH应用中表现出卓越的性能.
- 这种方法为下一代大气水收集技术提供了一个可扩展的解决方案.
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