Cooperative Assembly of 2D-MOF Nanoplatelets into Hierarchical Carpets and Tubular Superstructures for Advanced Air Filtration

Angew Chem Int Ed Engl. 2022 May 23;61(22):e202117730. doi: 10.1002/anie.202117730. Epub 2022 Mar 29.

Abstract

Clean air is an indispensable prerequisite for human health. The capture of small toxic molecules requires the development of advanced materials for air filtration. Two-dimensional nanomaterials offer highly accessible surface areas but for real-world applications their assembly into well-defined hierarchical mesostructures is essential. DUT-134(Cu) ([Cu2 (dttc)2 ]n , dttc=dithieno[3,2-b : 2',3'-d]thiophene-2,6-dicarboxylate]) is a metal-organic framework forming platelet-shaped particles, that can be organized into complex structures, such as millimeter large free-standing layers (carpets) and tubes. The structured material demonstrates enhanced accessibility of open metal sites and significantly enhanced H2 S adsorption capacity in gas filtering tests compared with traditional bulk analogues.

Keywords: 2D Material; Air Filtration; Chemisorption; Mesocrystal; Metal-Organic Frameworks; Self-Assembly.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Floors and Floorcoverings
  • Humans
  • Metal-Organic Frameworks* / chemistry
  • Metals
  • Nanostructures*

Substances

  • Metal-Organic Frameworks
  • Metals