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基于木材的毛细血管增强剂用于加速吸收水分和太阳能发电释放
Ran Deng1, Feng Lu2, Yu-Tang Li2
1School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
Journal of colloid and interface science
|September 19, 2023
概括
研究人员开发了光热木材增强剂,以加速大气中的水收集. 这些增强剂显著提高了水分吸收和脱吸率,为全球水危机提供了有希望的解决方案.
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:
- 全球水危机需要水资源管理的创新解决方案.
- 大气中的水收集提供了一个可行的替代水源.
- 液体干燥剂在捕获水分方面是有效的,但由于吸附/脱附速度缓慢而受到限制.
研究的目的:
- 用光热木材增强剂来增强吸附和脱吸的动态捕获水分.
- 开发一种具有成本效益和可扩展的大气水收集方法.
主要方法:
- 通过巴尔萨木材的部分脱和低温碳化制造光热木材增强剂.
- 研究毛细血管传输和扩大接口以改善水分吸收和脱吸.
- 在各种相对湿度和温度条件下量化水分吸收和脱吸率.
主要成果:
- 湿度吸收率在两个小时内增加了103% (60%RH) 和84% (90%RH).
- 吸附效率翻了一番,在60°C的两个小时内达到80%.
- 太阳能驱动的脱吸实现了1.217kg·m-2·h-1.1的蒸发速度.
结论:
- 光热木材增强剂有效地加快了水分吸收和脱落动态.
- 这一策略增强了大气中的水收获,而不改变湿度可观材料的内在特性.
- 开发的增强剂为从空气中有效和可持续地产生水提供了一个有希望的方法.
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