Effects of ion exchange on the structure of ETS-10

Y K Krisnandi, E E Lachowski, R F Howe

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A detailed characterization study is reported of ETS-10 subjected to ammonium ion exchange and subsequent sodium ion back exchange. It is shown that although such ion exchange leaves the crystallinity of ETS-10 measured by X-ray powder diffraction unchanged, other techniques reveal that the structure becomes locally damaged. In particular, there is partial dissolution of silica from the outer regions of ETS-10 crystallites under low pH conditions, exposing titania-rich surface sites and substantially modifying the photoreactivity of the material.

Original languageEnglish
Pages (from-to)928-933
Number of pages6
JournalChemistry of Materials
Volume18
Issue number4
DOIs
Publication statusPublished - 21 Feb 2006

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Ion exchange
Photoreactivity
Ammonium Compounds
Crystallites
Silicon Dioxide
X ray powder diffraction
Dissolution
Titanium
Sodium
Silica
Ions
ETS-10
titanium dioxide

Keywords

  • microporous titanosilicateETS-10
  • ray-absorption spectroscopy

Cite this

Effects of ion exchange on the structure of ETS-10. / Krisnandi, Y K ; Lachowski, E E ; Howe, R F .

In: Chemistry of Materials, Vol. 18, No. 4, 21.02.2006, p. 928-933.

Research output: Contribution to journalArticle

Krisnandi, Y K ; Lachowski, E E ; Howe, R F . / Effects of ion exchange on the structure of ETS-10. In: Chemistry of Materials. 2006 ; Vol. 18, No. 4. pp. 928-933.
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