[2M01-04] 収着1

9:45 〜 10:00

[2M01] Efficient Cesium Capture Using Potassium-Metakaolin Geopolymer Matrices

*Mai Dung Do Thi Do Thi¹, Sajedah Yousef Abdul-Qader Moushtaha¹, Tadachika Nakayama¹, Tatsuya Suzuki¹, Hisayuki Suematsu¹ (1. Nagaoka University of Technology)

キーワード：

cesium、potassium、metakaolin、geopolymer、nuclear waste、severe accident

The cesium (Cs) capture ability of potassium-metakaolin geopolymer was investigated in this study. Cesium chloride was added to the potassium-based geopolymer with metakaolin and silica fume as the aluminosilicate sources. In the XRD result, potassium chloride was identified, suggesting that the Cs⁺ replaced the K⁺ ion by the ion exchange process. The result of the leaching tests has also shown that cesium is being effectively captured by replacing potassium in the geopolymer matrix.