Peterson Gregory W, Destefano Matthew R, Garibay Sergio J, Ploskonka Ann, McEntee Monica, Hall Morgan, Karwacki Christopher J, Hupp Joseph T, Farha Omar K
Edgewood Chemical Biological Center, 5183 Blackhawk Rd., Aberdeen Proving Ground, MD, 21010, USA.
Department of Chemistry and the International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.
Chemistry. 2017 Nov 13;23(63):15913-15916. doi: 10.1002/chem.201704525. Epub 2017 Oct 24.
For the first time, an increasing number of defects were introduced to the metal-organic framework UiO-66-NH in an attempt to understand the structure-activity trade-offs associated with toxic chemical removal. It was found that an optimum exists with moderate defects for toxic chemicals that react with the linker, whereas those that require hydrolysis at the secondary building unit performed better when more defects were introduced. The insights obtained through this work highlight the ability to dial-in appropriate material formulations, even within the same parent metal-organic framework, allowing for trade-offs between reaction efficiency and mass transfer.
首次在金属有机骨架UiO - 66 - NH中引入了越来越多的缺陷，以试图理解与有毒化学物质去除相关的结构 - 活性权衡。结果发现，对于与连接体反应的有毒化学物质，适度缺陷存在最佳值，而那些需要在二级结构单元处水解的物质，引入更多缺陷时表现更好。通过这项工作获得的见解突出了即使在同一母体金属有机骨架内也能够调整合适的材料配方的能力，从而实现反应效率和传质之间的权衡。
