Co-immobilization of strontium and cesium in Sr-feldspar-pollucite composite phase ceramics derived from geopolymer by microwave sintering

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-08-07 DOI:10.1007/s10967-024-09666-5

Pingping Huang, Zhijie He, Yupeng Xie, Yuzhen Mai, Mingfeng Chen, Zhitao Hu

引用次数: 0

Abstract

The ceramic products derived from cesium-strontium co-doped geopolymers ((Cs, Sr)-GP) have been synthesized by microwave sintering to realize the co-immobilization of Cs and Sr. Results show that (Cs, Sr)-GP with various Cs/Sr ratios (2–4) form Sr-feldspar-pollucite composite ceramic, the formation temperatures of monoclinic Sr-feldspar decrease from 1000 ℃ (for Sr-GP) to 800 ℃ (for (Cs, Sr)-GP) with Cs addition. The ceramic product heat treated from the (4Cs, Sr)-GP at 1000 ℃ has a high crystalline and optimal leaching resistance, is considered as an ideal host to immobilization the real fission products containing Cs and Sr.

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微波烧结法在地聚合物衍生的锶长石-白云石复合相陶瓷中共同固定锶和铯

微波烧结法合成了铯锶共掺地聚合物（(Cs, Sr)-GP）衍生陶瓷产品，实现了铯和硒的共赋存。结果表明，不同 Cs/Sr 比（2-4）的（Cs, Sr）-GP 可形成硒长石-白云石复合陶瓷，单斜硒长石的形成温度随 Cs 的加入从 1000 ℃（Sr-GP）降至 800 ℃（（Cs, Sr）-GP）。由（4Cs, Sr）-GP 在 1000 ℃ 下热处理产生的陶瓷产品具有较高的结晶度和最佳的抗浸出性，被认为是固定含 Cs 和 Sr 的真实裂变产物的理想宿主。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.