Synthesis of mordenite and its composite material using chemical reagents for Cs decontamination
Synthesis of mordenite and its composite material using chemical reagents for Cs decontamination
复制标题
DOI：
10.2109/jcersj2.15317
复制
发表时间：
2016-05-01
影响因子：
1.1
通讯作者：
Matsue, Naoto
中科院分区：
文献类型：
--
作者：
Aono, Hiromichi;Kaji, Noriaki;Matsue, Naoto
以无定形SiO2和铝酸钠为原料，在不添加模板剂和晶种粉的情况下合成了丝光沸石。以Al/Si比为0.085-0.120的丝光沸石为起始原料，在170-200 ℃的反应温度范围内反应24小时，得到丝光沸石的单相。阳离子交换容量（CEC）约为。180-210 cmol/kg，随Al/Si比的增加而增加。1.0g丝光沸石对100 ppmCs +100 mL水和海水溶液中Cs+的吸附率> 99%，对Cs+的吸附率约为100%。85%-92%。合成了由丝光沸石和磁铁矿（10、20、30wt%）组成的用于磁性收集的复合材料。对于所有受检的含磁铁矿的复合材料，在水中吸附Cs+后使用磁性收集材料的总Cs净化率也高于95%。(C)2016年日本陶瓷协会。All rights reserved.
Mordenite was synthesized using chemical reagents of amorphous SiO2 and sodium aluminate without the addition of a template agent and a seed powder. The single phase of the mordenite was obtained for the Al/Si ratios of 0.085-0.120 as the starting material in the reaction temperature range of 170-200 degrees C for 24 h. The cation exchange capacity (CEC) was ca. 180-210 cmol/kg and it increased with the Al/Si ratio. The Cs+ adsorption ability from 100ppm Cs+ 100mL solutions of water and seawater for the mordenite (1.0 g) was > 99% and ca. 85-92%, respectively. A composite material consisting of the mordenite and magnetite (10, 20, 30 wt%) was synthesized for the magnetic collection. The total Cs decontamination rates using the magnetic collection material after the Cs+ adsorption in water were also higher than 95% for all the examined magnetite-containing composite materials. (C) 2016 The Ceramic Society of Japan. All rights reserved.