Hydrolytic Stability and Hydrogen Peroxide Activation of Zirconium‐Based Oxoclusters (Eur. J. Inorg. Chem. 2/2015)

Faccioli, Francesco; Pedron, Danilo; Sorarù, Antonio; Carraro, Mauro; Gross, Silvia

doi:10.1002/ejic.201590004

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“…This was similar to the reports in the literature where MOFs and Zr oxides (hydroxides) could activate H 2 O 2 oxidation. 42–45…”

Section: Resultsmentioning

confidence: 99%

“…This was similar to the reports in the literature where MOFs and Zr oxides (hydroxides) could activate H 2 O 2 oxidation. [42][43][44][45] Figure 8 also shows that the degradation rates of HD varied with different Zr-based materials. MOF-808 showed the highest rate with a t 1/2 of 2.2 min and complete degradation within 15 min; next was PCN-222 with a t 1/2 of 9.2 min (see Table 3).…”

Section: Hd Degradationmentioning

confidence: 96%

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Catalytic degradation of CWAs with MOF-808 and PCN-222: Toward practical application

Wu¹,

Wang²,

Zhu³

et al. 2022

Journal of Chemical Research

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Chemical warfare agents, such as nerve agents (GD and VX) and blister agents (HD), have strong toxicities to mankind. In recent years, zirconium-based metal-organic frameworks have been found to be attractive materials for chemical warfare agent degradation. Among them, metal-organic framework-808 (MOF-808) and porous coordination network-222 (PCN-222) were the best. However, few papers pay attention to their practical application. In this work, we prepared MOF-808 and PCN-222 using water phase and organic solvothermal methods, respectively. Their performance for the catalytic degradation of chemical warfare agents under practical decontamination conditions was studied. The results showed that MOF-808 displayed a high potency for catalytic hydrolysis of VX (10,000 mg L−1) in unbuffered solution. PCN-222 exhibited weaker reactivity with a half-life ( t1/2) of 28.8 min. Their different performances might stem from the different connectivity of the Zr6 nodes and framework structures. The results illustrated that the hydrolysis of high-concentration GD required a strong alkaline buffer to neutralize the hydrolysis product of hydrofluoric acid (HF) to avoid catalyst poisoning. When H2O2 was used as the oxidant instead of O2, both zirconium-based metal-organic frameworks performed with effective catalytic potency for HD degradation without any special lighting and so was suitable for practical application, whereas the products obtained from HD, such as HDO2 and V-HDO2, still possessed vesicant toxicity. Overall, MOF-808 prepared via a water-phase synthesis performed with effective catalysis for the degradation of high-concentration VX, GD, and HD with t1/2 of < 0.5, 3.1 and 2.2 min, respectively, exhibiting its potential for practical applications.

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“…This was similar to the reports in the literature where MOFs and Zr oxides (hydroxides) could activate H 2 O 2 oxidation. 42–45…”

Section: Resultsmentioning

confidence: 99%

Section: Hd Degradationmentioning

confidence: 96%

Catalytic degradation of CWAs with MOF-808 and PCN-222: Toward practical application

Wu¹,

Wang²,

Zhu³

et al. 2022

Journal of Chemical Research

View full text Add to dashboard Cite

show abstract

Hydrolytic Stability and Hydrogen Peroxide Activation of Zirconium‐Based Oxoclusters (Eur. J. Inorg. Chem. 2/2015)

Cited by 1 publication

References 0 publications

Catalytic degradation of CWAs with MOF-808 and PCN-222: Toward practical application

Catalytic degradation of CWAs with MOF-808 and PCN-222: Toward practical application

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