Luminescence studies on intrazeolitic migration of Tb(III) ions by thermal treatments. 1. FAU-type zeolites
SCIE
SCOPUS
- Title
- Luminescence studies on intrazeolitic migration of Tb(III) ions by thermal treatments. 1. FAU-type zeolites
- Authors
- HONG, SB; SHIN, EW; MOON, SH; PYUN, CH; KIM, CH; UH, YS
- Date Issued
- 1995-08-10
- Publisher
- American Chemical Society
- Abstract
- It is observed from the luminescence measurements that the intrazeolitic migration of Tb(III) ions arising from thermal treatments in FAU-type zeolites is strongly dependent on the framework Si/Al ratio. For a low-silica FAU zeolite (Si/Al = 1.37) most of the Tb(III) ions exchanged into supercages begin to migrate directly to hexagonal prisms at 423 K without staying at sodalite cages; by contrast, the cations in a high-silica FAU zeolite (Si/Al = 3.40) migrate first to sodalite cages at 373 K and in turn to hexagonal prisms at temperatures higher than 373 K.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35177
- DOI
- 10.1021/j100032a033
- ISSN
- 0022-3654
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY, vol. 99, no. 32, page. 12274 - 12277, 1995-08-10
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