Preparation and photoluminescent properties of Eu(III) containing M-layered silicates (M = Li, Na, K, Rb, Cs)

Autor:	Yoon Kyong Ryu, Byung-Yong Yu, Gihoon Lee, Sun Jin Kim
Rok vydání:	2011
Předmět:	Photoluminescence Ion exchange Inorganic chemistry chemistry.chemical_element General Chemistry Alkali metal Silicate law.invention Ion chemistry.chemical_compound chemistry law Calcination Luminescence Europium
Zdroj:	Research on Chemical Intermediates. 38:1191-1202
ISSN:	1568-5675 0922-6168
Popis:	Eu(III) containing M-layered silicates (M = Li, Na, K, Rb, Cs) were prepared using the layered silicates, such as ilerite, magadiite, and kenyaite, as a host matrix and the luminescence properties were investigated. The results from the luminescence measurements indicated that the luminescence properties in the EuM-layered silicate system depended strongly on the types of host matrices and alkali cations. Among the EuM-layered silicates, EuM-ilerite exhibited the strongest luminescence intensity for all alkali cations, whereas EuM-kenyaite exhibited relatively weak luminescence intensity. The luminescence intensity was significantly increased by heat treatment at high temperature, mainly due to the phase change of host matrices and the presence of alkali cations in the host matrices. Particularly, the luminescence intensity of EuM-layered silicate calcined at 1,000 °C increased with the increase of the ion size of alkali cations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a740f617e4e5a898eb75cf595b65d489 https://doi.org/10.1007/s11164-011-0458-9 Zobrazit plný text záznamu Full text from SpringerLink