X-ray studies of iodine sorption in some silver zeolites

E. R. Vance, Dinesh Kumar Agrawal

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

After saturation sorption, in a static system, of molecular iodine onto some silver zeolites at 130° C, powder X-ray diffraction analysis revealed sharp reflections due to crystalline α-Agl. However, this α-Agl contained only a fraction of the sorbed iodine and it seems likely that this α-Agl involves "unlocalized" ions such that a continuous three-dimensional network of α-Agl forms in the zeolite channels. Water in the zeolite channels is probably the underlying cause: heating to 200 to 300° C in air destroyed the sharp α-Agl reflections and no such reflections were observed if the sorption was carried out with the zeolites dehydrated beforehand. α-Agl formation was enhanced when the zeolite framework was broken down by heating in air at ≳ 800° C, heating in water or brine at 200° C, or γ-irradiation.

Original languageEnglish (US)
Pages (from-to)1889-1894
Number of pages6
JournalJournal of Materials Science
Volume17
Issue number7
DOIs
StatePublished - Jul 1 1982

Fingerprint

Zeolites
Iodine
Silver
zeolites
sorption
iodine
Sorption
silver
Heating
X rays
heating
x rays
air
Air
X ray diffraction analysis
water
Water
Irradiation
Crystalline materials
saturation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)

Cite this

Vance, E. R. ; Agrawal, Dinesh Kumar. / X-ray studies of iodine sorption in some silver zeolites. In: Journal of Materials Science. 1982 ; Vol. 17, No. 7. pp. 1889-1894.
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X-ray studies of iodine sorption in some silver zeolites. / Vance, E. R.; Agrawal, Dinesh Kumar.

In: Journal of Materials Science, Vol. 17, No. 7, 01.07.1982, p. 1889-1894.

Research output: Contribution to journalArticle

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