Magnesium Exchanged Zirconium Metal-Organic Frameworks with Improved Detoxification Properties of Nerve Agents

J Am Chem Soc. 2019 Jul 31;141(30):11801-11805. doi: 10.1021/jacs.9b05571. Epub 2019 Jul 23.

Abstract

UiO-66, MOF-808 and NU-1000 metal-organic frameworks exhibit a differentiated reactivity toward [Mg(OMe)2(MeOH)2]4 related to their pore accessibility. Microporous UiO-66 remains unchanged while mesoporous MOF-808 and hierarchical micro/mesoporous NU-1000 materials yield doped systems containing exposed MgZr5O2(OH)6 clusters in the mesoporous cavities. This modification is responsible for a remarkable enhancement of the catalytic activity toward the hydrolytic degradation of P-F and P-S bonds of toxic nerve agents, at room temperature, in unbuffered aqueous solutions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Hydrolysis
  • Magnesium / chemistry*
  • Metal-Organic Frameworks / chemistry*
  • Models, Molecular
  • Nerve Agents / chemistry*
  • Oxidation-Reduction
  • Particle Size
  • Porosity
  • Surface Properties
  • Temperature
  • Zirconium / chemistry*

Substances

  • Metal-Organic Frameworks
  • Nerve Agents
  • Zirconium
  • Magnesium