Bose Saptasree, Sengupta Debabrata, Wang Xiaoliang, Smoljan Courtney S, Mahle John J, Tokarz John A, Rayder Thomas M, Ma Kaikai, Kirlikovali Kent O, Islamoglu Timur, Peterson Gregory W, Farha Omar K
Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.
Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States.
ACS Appl Mater Interfaces. 2025 Mar 26;17(12):17813-17822. doi: 10.1021/acsami.4c09745. Epub 2024 Aug 20.
The versatility of metal-organic frameworks (MOFs) has led to groundbreaking applications in a wide variety of fields, especially in the areas of energy, environment, and sustainability. For example, MOFs can be designed for high uptake of toxic gases and pollutants, such as CO, NH, and SO, but designing a single MOF that shows tangible uptake for all of these gases is challenging due to the differences in the chemical and physical properties of these molecules. To this end, integrating multiple MOFs onto textile fibers and crafting various structures have emerged as pivotal developments, enhancing framework durability and usability. MOF composites prepared on readily available textile fibers offer the flexibility essential for critical applications, including heterogeneous catalysis, chemical sensing, toxic gas adsorption, and drug delivery, while preserving the unique characteristics of MOFs. This study introduces a scalable and adaptable method for seamlessly embedding multiple high-performing MOFs onto a single textile fiber using a dip-coating method. We explored the uptake capacity of these multi-MOF composites for CO, NH, and SO and observed a performance similar to that of traditional powdered materials. Along with harmful gas adsorption, we also have evaluated the permeation and reactivity of these MOF/textile composites toward chemical warfare agents (CWAs) like GD (soman), HD (mustard gas), and VX. In combination, these results demonstrate a fundamental advancement toward establishing a consistent strategy for the hydrolysis of nerve agents in real-world scenarios. This approach can substantially increase the protection toward CWAs and enhance the effectiveness of protective equipment such as fabrics for protective garments. This dip-coating method for the integration of multiple MOFs on a single textile fiber unlocks a wealth of possibilities and paves the way for future innovations in the deployment of MOF-based composites.
金属有机框架材料（MOFs）的多功能性已在众多领域带来了开创性的应用，尤其是在能源、环境和可持续发展领域。例如，MOFs可设计用于高效吸收有毒气体和污染物，如一氧化碳（CO）、氨气（NH₃）和二氧化硫（SO₂），但由于这些分子的化学和物理性质存在差异，设计一种能对所有这些气体都有明显吸收效果的单一MOF具有挑战性。为此，将多种MOFs整合到纺织纤维上并构建各种结构已成为关键进展，可提高框架的耐久性和实用性。在现成的纺织纤维上制备的MOF复合材料为包括多相催化、化学传感、有毒气体吸附和药物递送在内的关键应用提供了必不可少的灵活性，同时保留了MOFs的独特特性。本研究介绍了一种可扩展且适应性强的方法，通过浸涂法将多种高性能MOFs无缝嵌入到单根纺织纤维上。我们探究了这些多MOF复合材料对CO、NH₃和SO₂的吸收能力，并观察到其性能与传统粉末材料相似。除了有害气体吸附，我们还评估了这些MOF/纺织复合材料对诸如GD（梭曼）、HD（芥子气）和VX等化学战剂（CWAs）的渗透性和反应性。综合来看，这些结果表明在为实际场景中神经毒剂的水解建立一致策略方面取得了重要进展。这种方法可大幅增强对化学战剂的防护能力，并提高防护服等防护装备的有效性。这种将多种MOFs整合到单根纺织纤维上的浸涂方法开启了众多可能性，为基于MOF的复合材料的未来创新铺平了道路。
