2019 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 19 - Sep 23, 2019Kyushu University Ito Campus
2019 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 19 - Sep 23, 2019Kyushu University Ito Campus
[R2P-02]Preparation of Cs+ and Er3+ exchange forms of GTS-type Na titanosilicate and their cation distributions
*Keiko Fujiwara1, Naomi Kawata1, Akihiko Nakatsuka1(1. Yamaguchi Uni.Sci. and Tech. for Innov.)
Keywords:
microporous crystal,hydrothermal synthesis,Cs-exchange,Er-exchange,cation distribution
Investigation of the Cs+-exchange properties of microporous Na-GTS crystal is important for the application of GTS to the removal of Cs radioisotopes from the radioactive waste water. The Er3+-exchanged form of Na-GTS is promising as fluorescent materials. The Cs+- and Er3+-exchanged forms with high ion-exchange rates were obtained after the ion-exchange treatments of the hydrothermally synthesized Na-GTS. In these samples, the cation distribution of Cs+ and Er3+ in the cavity will be discussed from the comparison of the observed and simulated XRD patterns.