Login / Signup

Organization of Cooperating Aluminum Pairs in Ferrierite Evidenced by Luminescence Quenching.

Joanna E OlszówkaPavel KubátJiri DedecekEdyta Tabor
Published in: The journal of physical chemistry. C, Nanomaterials and interfaces (2023)
We show that four cooperating Al atoms located at the two neighboring six-membered (6-MR) rings in the ferrierite framework can be readily discerned by luminescence studies. Thus, luminescent Zn(II) cations accommodated by one aluminum pair of the 6-MR ring can be effectively quenched by neighboring Co(II) ions stabilized by the second ring. Quenching occurs via the energy transfer mechanism and allows estimation of the critical radius of Zn(II)-Co(II) interactions. This points to the appropriate geometry and distance of the transition metal ions accommodated within zeolite, providing direct evidence of the four-aluminum atom arrangement in the ferrierite framework.
Keyphrases
  • energy transfer
  • quantum dots
  • magnetic resonance
  • sensitive detection
  • heavy metals
  • transition metal
  • risk assessment
  • molecular dynamics
  • aqueous solution
  • case control