A novel red emitting material based on polyoxometalate@periodic mesoporous organosilica

Carlos M. Granadeiro, Susana O. Ribeiro, Anna M. Kaczmarek, Luís Cunha-Silva, Pedro L. Almeida, Sandra Gago, Rik Van Deun, Baltazar de Castro, Salete S. Balula

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The first lanthanopolyoxometalate-supported bifunctional periodic mesoporous organosilica (BPMO) composite is here reported. The incorporation of decatunsgstoeuropate anions ([Eu(W5O18)2]9−) within the porous channels of an ethylene-bridged TMAPS-functionalized BPMO produced a luminescent material exhibiting a strong red emission under UV irradiation. Photoluminescence studies showed an efficient energy transfer process to the lanthanide emitting center in the material (antenna effect). A significant change in the coordination environment of Eu3+ ions was observed after its incorporation into the TMAPS-functionalized material. The possible reason for this is discussed within the paper.

Original languageEnglish
Pages (from-to)248-256
Number of pages9
JournalMicroporous and Mesoporous Materials
Volume234
DOIs
Publication statusPublished - 1 Nov 2016

Keywords

  • Polyoxometalate
  • Mesoporous silica
  • Composite
  • Luminescence
  • Lanthanide

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