Improved structural order, stability, and anion-exchange capacity of cation-mediated bridged hybrid mesoscopic materials by using chelating ligands

Xianzhu Xu, Yu Han, Defeng Li, Hong Ding, Yue Wang*, Feng Shou Xiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The anion-exchange property of upgraded metal cation-mediated bridged hybrid mesoscopic material (MBH-S) is greatly improved by replacing initial unidentate ligands with chelating ligands in the framework. Compared to conventional MBH samples, the upgraded MBH-S shows a well-ordered hexagonal mesostructure and a remarkably high anion-exchange capacity. Significantly, the upgraded MBH-S shows a good hydrothermal stability and can keep its anion-exchange capacity unchanged during repeated ion-exchange procedures, which is very important for this type of material to be used in practical application as an anion exchanger. As examples, an anion molecule of tris(8- hydroxyquinoline-5-sulfonate)aluminum (Al(SQ) 3 ) with strong luminescence can be exchanged into MBH-S, forming composite solid of MBH-S-Al(SQ) 3 with very strong green luminescence under the excitation of UV light (λ exc = 360 nm). A functional molecule of copper phthalocyanine tetrasulfonic acid (CuPcTS) has been employed as a guest to assemble hybrid solid material, MBH-S-CuPcTS.

Original languageEnglish (US)
Pages (from-to)3507-3512
Number of pages6
JournalChemistry of Materials
Volume16
Issue number18
DOIs
StatePublished - Sep 7 2004

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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