Lanthanides based metal organic frameworks for luminescence sensing of toxic metal ions

Mahmoud Elcheikh Mahmoud, Zeinab Moussa, Thirumurugan Prakasam, Liang Li, Mohamad G. Abiad, Digambara Patra, Mohamad Hmadeh

Research output: Contribution to journalArticle

Abstract

Two set of lanthanides-based metal organic framework structures incorporating 2,6-naphthalenedicarboxylic acids and 1,5 dihydroxy-2,6-naphthalenedicarboxylic have been successfully synthesized and fully characterized. Interestingly, when 1,5 dihydroxy-2,6-naphthalenedicarboxylic was employed as organic linker, the hydroxyl groups were not involved in the coordination to the lanthanide clusters and therefore hydroxyl-functionalized lanthanides MOFs (AUBM-3) were obtained. The photophysical properties of both set of MOFs were studied and their sensing properties for toxic elements Pb(II), Cr(III), As(III), Cd(II), and Hg(II) and for paraquat were investigated. The hydroxyl-functionalized structures have shown to be promising luminescent sensory materials with high selectivity and sensitivity to mercury.

Original languageEnglish (US)
Article number121031
JournalJournal of Solid State Chemistry
Volume281
DOIs
StatePublished - Jan 2020

    Fingerprint

Keywords

  • Fluorescence
  • Heavy metals
  • Mercury
  • Metal organic frameworks (MOFs)
  • Paraquat
  • Sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this