A Deodorizing Textile Strategy Enabled by ZIF-8 Dressed Cotton Fabric with Unprecedent Capture of H₂S

Hydrogen sulfide (H₂S), a sulfur-based toxic gas similar to the well-known Mustard gas, has an unpleasant odor often causes uncomfortableness, destress, allergy, and/or mental failure during social occasions. Here, a unique cotton fabric with its surface intensively coated (up to 40 wt.%) with zeolitic imidazolate framework-8 (ZIF-8) is synthesized via a facile and low-cost hydrothermal method. The results of the H₂S gas capture test after 3 h exposure show that the ZIF-8@Cotton-6 fabric can achieve up to 20 wt.% adsorption efficiency of H₂S, along with 11.74 mmol H₂S × (g ZIF-8)⁻¹ coated, respectively. Unlike conventional H₂S absorption methods using porous carbon, ZIF-8@Cotton composite fabric provides safe, close-distance skin contact and long-term protection to absorb the odor. Moreover, ZIF-8@Cotton can be easily integrated into existing textile engineering processes. The hybrid fiber of ZIF-8@Cotton exhibits great potential to absorb H₂S on wearable garments and protective textiles applications.