Abstract
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 CO2, NH3, and SO2, 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 CO2, NH3, and SO2 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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 17813-17822 |
| Number of pages | 10 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 17 |
| Issue number | 12 |
| DOIs | |
| State | Published - Mar 26 2025 |
Funding
The authors gratefully acknowledge the Army Research Office (W911NF2020136), the Defense Threat Reduction Agency (HDTRA12210041) and CWA experiments (Project CB11222), and the U.S. Department of Energy (DE-EE0008816 and DE-SC0022332) for financial support. This work made use of the EPIC facility of Northwestern University\u2019s NUANCE Center, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-2025633), the International Institute of Nanotechnology (IIN), and Northwestern\u2019s MRSEC program (NSF DMR-2308691). This work made use of the IMSERC Crystallography facility at Northwestern University, which has received support from the SHyNE Resource (NSF ECCS-2025633) and Northwestern University. This work made use of the IMSERC NMR facility at Northwestern University, which has received support from the SHyNE Resource (NSF ECCS-2025633), IIN, and Northwestern University. For ICP-OES, metal analysis was performed at the Northwestern University Quantitative Bioelement Imaging Center. We extend our sincere gratitude to Glenn Tom for invaluable assistance provided during construction of the breakthrough experiment. We are thankful to NuMat Technologies for providing the PCN-250 MOF. We thank Laura Mundy for conducting CEES permeation experiments. C.S.S. gratefully acknowledges support from the IIN under the Ryan Fellowship.
Keywords
- chemical warfare agents
- detoxification reactions
- dip-coating method
- harmful gas capture
- metal−organic frameworks (MOFs)
- multiple MOFs/textile composites
- permeation
ASJC Scopus subject areas
- General Materials Science