1. Synthesis of macroscopic monolithic metal–organic gels for ultra-fast destruction of chemical warfare agents
- Author
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Guang Yang, Hongjie Pan, Lingyun Wang, Chuan Zhou, Shouxin Zhang, Cheng-an Tao, and Heguo Li
- Subjects
chemistry.chemical_classification ,Chemical Warfare Agents ,Materials science ,Sulfide ,General Chemical Engineering ,Sulfur mustard ,General Chemistry ,Decomposition ,Catalysis ,Metal ,chemistry.chemical_compound ,Microcrystalline ,chemistry ,Chemical engineering ,visual_art ,medicine ,visual_art.visual_art_medium ,Nerve agent ,medicine.drug - Abstract
The potential threat that has originated from chemical warfare agents (CWAs) has promoted the development of advanced materials to enhance the protection of civilian and military personnel. Zr-based metal–organic frameworks (Zr-MOFs) have recently been demonstrated as excellent catalysts for decomposing CWAs, but challenges of integrating the microcrystalline powders of Zr-MOFs into monoliths still remain. Herein, we report hierarchically porous monolithic UiO-66-X xerogels for the destruction of CWAs. We found that the UiO-66-NH2 xerogel with a larger pore size and a higher surface area than the UiO-66-NH2 powder possessed better degradability of 2-chloroethyl ethyl sulfide (2-CEES), which is a sulfur mustard simulant. These UiO-66-X xerogels exhibit outstanding performance for decomposing CWAs. The half-lives of vesicant agent sulfur mustard (HD) and nerve agent O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate (VX) are as short as 14.4 min and 1.5 min, respectively. This work is, to the best of our knowledge, the first report on macroscopic monolithic UiO-66-X xerogels for ultrafast decomposition of CWAs.
- Published
- 2021