Microenvironments in Faujasite-type Fe–Al Zeolites Probed by Europium Luminescence

Nakamura, Yasushi; Hasaegawa, Masatoshi; Katsuki, Kazuko

doi:10.1246/cl.2005.490

Cited by 6 publications

(1 citation statement)

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“…Because zeolite has many cages and channels, cations are free to migrate in and out zeolite structures. The luminescence properties of rare‐earth exchanged zeolite are exploited to probe microenvironment of zeolite . Rare earth has large ion size, so a hydrated ion cannot migrate from a supercage to a small sodalite to replace the residing Na + ions.…”

Section: Introductionmentioning

confidence: 99%

Photophysical Properties of Metal Ion Functionalized NaY Zeolite

Duan

Yan

2014

Photochem & Photobiology

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A series of luminescent ion exchanged zeolite are synthesized by introducing various ions into NaY zeolite. Monometal ion (Eu(3+), Tb(3+), Ce(3+), Y(3+), Zn(2+), Cd(2+), Cu(2+)) exchanged zeolite, rare-earth ion (Eu(3+), Tb(3+), Ce(3+)) exchanged zeolite modified with Y(3+) and rare-earth ion (Eu(3+), Tb(3+), Ce(3+)) exchanged zeolite modified with Zn(2+) are discussed here. The resulting materials are characterized by Fourier transform infrared spectrum radiometer (FTIR), XRD, scanning electronic microscope (SEM), PLE, PL and luminescence lifetime measurements. The photoluminescence spectrum of NaY indicates that emission band of host matrix exhibits a blueshift of about 70 nm after monometal ion exchange process. The results show that transition metal ion exchanged zeolites possess a similar emission band due to dominant host luminescence. A variety of luminescence phenomenon of rare-earth ion broadens the application of zeolite as a luminescent host. The Eu(3+) ion exchanged zeolite shows white light luminescence with a great application value and Ce(3+) exchanged zeolite steadily exhibits its characteristic luminescence in ultraviolet region no matter in monometal ion exchanged zeolite or bimetal ions exchanged zeolite.

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Section: Introductionmentioning

confidence: 99%