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Updated: Feb 14, 2026
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生物启发的光热MOF-螺旋结微纤维,具有超快的吸收释放,用于大气淡水收割机
Lingmei Zhu1, Hengyu Pan1, Huijie Wei1
1Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University (BUAA), Beijing 100191, P. R. China.
ACS applied materials & interfaces
|February 13, 2026
概括
一种新的生物灵感光热微纤维 (BPMM) 能够有效地从空气中收集水,即使在低湿度下也是如此. 这种超级材料在水工程应用中表现出卓越的吸水和释放能力.
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:
- 缺水需要创新的解决方案来收集大气中的水.
- 现有的材料在低湿度下往往难以提高效率,需要大量的能量投入.
- 金属有机框架 (MOF) 是有前途的,但对于实际应用需要结构优化.
研究的目的:
- 设计和合成一种生物灵感的光热微纤维 (BPMM),以有效地收集大气中的水.
- 研究材料组成和结构设计对水吸收和释放的协同效应.
- 评估BPMM在各种条件下的性能,包括相对湿度低和太阳辐射.
主要方法:
- 使用聚二烯烯胺,α-聚乙烯化物培养的MOF-303和碳黑制造BPMM.
- 描述BPMM的结构和化学特性,包括其多孔通道和水友性位点.
- 在受控的实验室条件下 (温度,相对湿度,太阳光) 和模拟的户外环境下对水收集能力的性能测试.
主要成果:
- BPMM表现出超高的水吸收和释放,在1个阳光下达到~100%的释放.
- 在25°C和10-60%的RH下,证明了~0.16-0.62gg−1h−1的水收集能力,超过现有的MOF和纤维的2-8倍.
- 在10%的RH (72个周期/天) 中,在模拟的户外条件下,实现了~12.27gg−1的持续收集水量和~24.71gg−1天−1的持续收集水量.
结论:
- 设计的BPMM,凭借其独特的MOF-spindle-knot结构和光热反应能力,为大气水收集提供了高效的解决方案.
- 这种生物灵感材料在捕获和释放水的效率方面明显超过当前技术,特别是在具有挑战性的低湿度条件下.
- 这些发现为设计水利工程,能源系统和缺水地区的传感器设备的先进材料提供了新的范式.
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