Tu Kunkun, Zhang Zhidong, Dreimol Christopher H, Günther Roman, Zboray Robert, Keplinger Tobias, Burgert Ingo, Ding Yong
Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou, Jiangsu, 221008, China.
Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, Jiangsu, 221008, China.
Mater Horiz. 2024 Nov 11;11(22):5786-5797. doi: 10.1039/d4mh01007h.
Maintaining indoor air relative humidity (R.H.) within the 40-60% range recommended by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) significantly impacts human comfort and health. However, conventional solutions like dehumidifiers and humidifiers increase energy consumption, challenging the building sector's carbon neutrality goals. Here, we present an innovative composite material comprising wood and metal-organic frameworks (MOFs) that passively regulates indoor humidity by absorbing and releasing moisture. Our universal fabrication strategy enhances wood scaffold accessibility and increases MOF loading, resulting in a significant surface area increase, surpassing previous MOF/wood composites. This MOF/wood composite exhibits remarkable water sorption capacity, autonomously maintaining indoor humidity around 45% R.H. without external energy consumption. This aligns with ASHRAE recommendations, offering indirect energy savings and promoting a health-friendly indoor environment. Furthermore, the MOF/wood composite outperforms many existing materials in mechanical strength, dimensional stability, and scalability, making it highly suitable for building applications and contributing to carbon neutrality in the building sector.
将室内空气相对湿度（R.H.）维持在美国供热、制冷与空调工程师协会（ASHRAE）建议的40%-60%范围内，对人类舒适度和健康有显著影响。然而，像除湿机和加湿器这样的传统解决方案会增加能源消耗，对建筑行业的碳中和目标构成挑战。在此，我们展示了一种由木材和金属有机框架（MOF）组成的创新复合材料，它通过吸收和释放水分来被动调节室内湿度。我们的通用制造策略提高了木材支架的可及性并增加了MOF负载量，从而显著增加了表面积，超过了之前的MOF/木材复合材料。这种MOF/木材复合材料表现出卓越的吸水能力，能在无外部能源消耗的情况下自主将室内湿度维持在约45%R.H.。这符合ASHRAE的建议，可间接节省能源并营造健康友好的室内环境。此外，MOF/木材复合材料在机械强度、尺寸稳定性和可扩展性方面优于许多现有材料，非常适合建筑应用，有助于建筑行业实现碳中和。
