Stilbene ligand-based metal–organic frameworks for efficient dye adsorption and nitrobenzene detection

Jiyun Kim, Chanju Na, Younghu Son, Mani Prabu, Minyoung Yoon

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The technological developments of metal–organic framework (MOF) for selective adsorption and sensing have been achieved in recent years. Herein, we report two stilbene-based MOFs, denoted as Zn3(SDC)3(bpy) (1) and Zn(SDC)(bpy)·2DMF (2). MOFs 1 and 2 were synthesized in pure form by controlling the organic linker ratio and were used for the adsorptive removal of dye molecules. Despite their low adsorption capacities, the MOFs were more selective toward cationic dye (methylene blue) than anionic dye (methyl orange). The unique fluorescent property of the MOFs was harnessed for the sensing of harmful organic molecules. Interestingly, the fluorescence of 1′ was quenched by aromatic analytes containing amine and nitro functional groups. However, 2′ only showed modest fluorescence quenching by nitrobenzene. The quenching efficiency of nitrobenzene had a low detection limit for 1′ and 2′ (14.28 and 25.42 μM, respectively). These MOFs can be used as adsorbents and highly sensitive chemical sensors.

Original languageEnglish
Pages (from-to)507-515
Number of pages9
JournalBulletin of the Korean Chemical Society
Volume44
Issue number6
DOIs
StatePublished - Jun 2023

Keywords

  • dye adsorption
  • interpenetration
  • metal–organic framework
  • photoluminescence
  • sensor

Fingerprint

Dive into the research topics of 'Stilbene ligand-based metal–organic frameworks for efficient dye adsorption and nitrobenzene detection'. Together they form a unique fingerprint.

Cite this