講演情報
[1B09]Retention Mechanism of Cesium in Chabazite Embedded into Metakaolin-Based Alkali Activated Materials
*Chaerun Raudhatul Islam1, Natatsawas Soonthornwiphat1, Kanako Toda1, Kazuma Kuroda1, Ryosuke Kikuchi1, Tsubasa Otake1, John Provis2, Yogarajah Elakneswaran1, Tsutomu Sato1 (1. Hokkaido Univ., 2. The University of Sheffield)
キーワード：
Geopolymer、Transmission electron microscopy、Raman spectroscopy、Thermodynamics calculation、Pollucite、Fukushima Daiichi Nuclear Power Station
K-based geopolymer has recently attracted attention as a matrix material for spent synthetic chabazite encapsulation at the Fukushima Daiichi Nuclear Power Station. The aggregation of cesium with iron heterogeneously formed pollucite-like structures in chabazite, which was revealed by transmission electron microscopy images. Furthermore, Raman spectroscopy and thermodynamic calculation have proven the formation of pollucite structure.