基于生物灵感的多尺度核心线的太阳能蒸发器,用于超高效和耐用的高盐度盐水淡化
Ailin Li1, Mantang He1, Maorong Zheng1
1Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
Fundamental research
|June 18, 2025
概括
使用电聚烯二 @碳纳米管纳米纤维/棉芯线 (PCCS线) 的新型太阳能蒸发器提供了超高效和耐用的海水淡化. 这项技术实现了高蒸发率和稳定的性能,即使使用高盐度盐水.
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:
- 太阳能驱动的界面海水淡化是一种绿色技术,用于解决全球水资源短缺问题.
- 盐的积累大大降低了传统太阳能蒸发器的效率和寿命.
- 高性能,长期拒绝盐的太阳能蒸发器对于实际应用至关重要.
研究的目的:
- 开发一种超高效且耐用的太阳能蒸发器,用于高盐度盐水淡化.
- 为了克服太阳能蒸发系统中盐堆积的挑战.
- 创建一个可扩展的太阳能海水淡化装置,灵感来自于天然的水运输机制.
主要方法:
- 使用电聚烯二 @碳纳米管纳米纤维/棉芯线 (PCCS线) 制造了一种新型太阳能蒸发器.
- 具有多分支微通道和子微通道的PCCS线的设计,用于增强水运输.
- 在一个太阳照明下测试蒸发器的性能,使用高盐度 (20wt% NaCl) 盐水.
主要成果:
- 基于PCCS线的最佳太阳能蒸发器在2D蒸发器中实现了3.46kg m−2h−1的蒸发率记录.
- 经证实稳定的盐水淡化速率为 ~2.75 kg m-2h-1 100 小时,使用 20wt% NaCl 溶液.
- 性能归因于巨大的微蒸发表面,快速补充水,并通过拉普拉斯压力高效的水运输.
结论:
- 基于PCCS线的太阳能蒸发器提供了高度盐水的超高效和持久的海水淡化.
- 设计方便快速的水运输,有效地减轻盐的积累.
- 使用结合电和织工业方法的可扩展的制造工艺使其能够在实践中应用.
相关概念视频
02:02Responses to Salt Stress
13.4K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.4K
01:32Chemiosmosis
102.9K
Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
102.9K
01:22Effect of Sea Water on Concrete
478
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
Concrete in areas between tide marks,...
478