Pal Arnab, Suresh Sreerag, Khan Arshad, Kuo Li Huai, Chi Li Tang, Ganguly Anindita, Kao Chih-Yao, Sharma Manish Kumar, Wang Tsung-Shing Andrew, Kang Dun-Yen, Lin Zong-Hong
Department of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan.
Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 30013, Taiwan.
Sci Adv. 2025 Jan 10;11(2):eads4711. doi: 10.1126/sciadv.ads4711. Epub 2025 Jan 8.
Reactive oxygen species (ROS) are highly reactive, making them useful for environmental and health applications. Traditionally, photocatalysts and piezocatalysts have been used to generate ROS, but their utilization is limited by various environmental and physical constraints. This study introduces metal-organic frameworks (MOFs) as modern thermocatalysts efficiently producing hydrogen peroxide (HO) from small temperature differences. Temperature fluctuations, abundant in daily life, offer tremendous potential for practical thermocatalytic applications. As proof of concept, MOF materials coated onto carbon fiber fabric (MOF@CFF) created a thermocatalytic antibacterial filter. The study compared three different MOFs (CuBDC, MOF-303, and ZIF-8) with bismuth telluride (BiTe), a known thermocatalytic material. ZIF-8 demonstrated superior HO generation under low-temperature differences, achieving 96% antibacterial activity through temperature variation cycles. This work advances potential in thermoelectric applications of MOFs, enabling real-time purification and disinfection through HO generation. The findings open interdisciplinary avenues for leveraging thermoelectric effects in catalysis and various technologies.
活性氧（ROS）具有高反应活性，这使其在环境和健康应用中很有用处。传统上，光催化剂和压电催化剂已被用于产生活性氧，但它们的应用受到各种环境和物理限制。本研究引入金属有机框架（MOF）作为现代热催化剂，可从小温差中高效产生过氧化氢（HO）。日常生活中存在的温度波动为实际热催化应用提供了巨大潜力。作为概念验证，涂覆在碳纤维织物上的MOF材料（MOF@CFF）制成了一种热催化抗菌过滤器。该研究将三种不同的MOF（CuBDC、MOF-303和ZIF-8）与已知的热催化材料碲化铋（BiTe）进行了比较。ZIF-8在低温差下表现出优异的HO生成能力，通过温度变化循环实现了96%的抗菌活性。这项工作推动了MOF在热电应用方面的潜力，能够通过生成HO实现实时净化和消毒。这些发现为在催化和各种技术中利用热电效应开辟了跨学科途径。
