在生物启发的表面上收集和运输水,将甲虫,蜘蛛网和仙人掌结合在一起
Xiaowen Qi1, Xiaolong Fang1, Youfu Wang1
1Department of Materials Science, School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China.
Langmuir : the ACS journal of surfaces and colloids
|February 26, 2025
概括
研究人员开发了一种由大自然启发的新型图案表面,用于有效收集雾水. 这种具有成本效益的方法显著提高了收集水率,为淡水短缺提供了可持续的解决方案.
科学领域:
- 材料科学与工程 材料科学与工程
- 环境科学与工程环境科学与工程
- 纳米技术纳米技术
背景情况:
- 淡水短缺是一个关键的全球性挑战.
- 雾采集是一种可持续且具有成本效益的收集水方法.
- 生物灵感设计可以优化收集水的效率.
研究的目的:
- 使用仿生模式设计和制造一个高效的雾水收集表面.
- 为了研究超性-超性图案表面的收集水性能.
- 在不均的可湿面上分析增强水收集背后的机制.
主要方法:
- 在 (Al) 基板上使用含涂层和激光标记物剥离制造相互连接的超性-超性图案.
- 表面湿度的表征,包括水接触角度 (159.3°) 和滚动角度 (<1°).
- 在受控雾流速 (600毫升/小时) 下评估收集水效率.
主要成果:
- 最佳的图案表面显示了明显减少的滴收集时间 (51.3秒) 和高收集率 (840.54毫克·厘米-2·h-1).
- 水的收集率分别比超性和超性表面高68.64%和229.38%.
- 激光标记器切除被证明是一种可扩展,具有成本效益和高效的表面纹理方法.
结论:
- 仿生图案的表面有效地通过优化雾吸附,核化,生长和滴滴运输来增强雾水的收集.
- 表面能量梯度和由此产生的压力是有效收集水的关键驱动因素.
- 开发的图案技术适用于大规模,经济高效的水收集装置生产.
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