| 摘要 |
The present invention provides a composition that includes a silicotitanate that has a sitinakite structure, the composition having higher cesium adsorptivity than conventional compositions. The present invention also provides a production method for the composition that includes a silicotitanate that has a sitinakite structure. The production method does not require the use of hazardous or deleterious materials, can generate a product using a compound that is easily acquired, and can use a general-purpose autoclave. Also provided is a silicotitanate composition that has higher strontium adsorptivity than conventional compositions. Provided is a silicotitanate composition that contains niobium and a silicotitanate that has a sitinakite structure, the composition having two or more diffraction peaks in the group that comprises at least 2? = 8.8° ± 0.5°, 2? = 10.0° ± 0.5°, and 2? = 29.6° ± 0.5°. |
