Abstract The single phase of the chabazite (CHA) was artificially synthesized in the absence of organic-structure-directing agents and a seed crystal. The CHA showed a high selectivity of 91.2% for Cs ions in sea water (1.0 g CHA in 100 ppm Cs containing 100 mL sea water), which was superior to 87.1% of the synthesized mordenite. The single phase of the merlinoite (MER) was obtained by lack of a fluoride source. The Cs adsorption performance for the MER was 83.1% in the seawater. The CHA was heat-treated for the immobilization of the Cs in the decomposed zeolite. For the non-heated sample, ca. 1.2% Cs ion from all of the adsorbed Cs was eluted by a dissolution test in deionized water for 14 days. The Cs ion did not elute when the sample was heated at 1000 °C and higher temperature due to the Cs containment in the amorphous phase.

中文翻译：

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热处理合成菱沸石和墨菱石的 Cs+ 吸附和固定性能

摘要 菱沸石 (CHA) 的单相是在没有有机结构导向剂和晶种的情况下人工合成的。CHA 对海水中的 Cs 离子显示出 91.2% 的高选择性（1.0 g CHA 在 100 ppm Cs 中含有 100 mL 海水），优于合成丝光沸石的 87.1%。由于缺乏氟化物源，获得了单相的墨菱沸石 (MER)。MER 在海水中的 Cs 吸附性能为 83.1%。对 CHA 进行热处理以将 Cs 固定在分解的沸石中。对于未加热的样品，ca。通过在去离子水中溶解试验 14 天，从所有吸附的 Cs 中洗脱出 1.2% 的 Cs 离子。由于 Cs 包含在非晶相中，当样品在 1000 °C 和更高的温度下加热时，Cs 离子没有洗脱。