使用有序介孔透钙磷石对放射性铯离子进行去污处理。
Decontamination of radioactive cesium ions using ordered mesoporous monetite.
作者信息
Tag El-Din Ali F, Elshehy Emad A, Abd El-Magied Mahmoud O, Atia Asem A, El-Khouly Mohamed E
机构信息
Department of Chemistry, Faculty of Science, Kafrelsheikh University Kafr El-Sheikh 33516 Egypt
Nuclear Materials Authority P. O. Box 530, El Maadi Cairo Egypt.
出版信息
RSC Adv. 2018 May 23;8(34):19041-19050. doi: 10.1039/c8ra02707b. eCollection 2018 May 22.
We report herein the fabrication of an environmentally friendly, low-cost and efficient nanostructured mesoporous monetite plate-like mineral (CaHPO) as an adsorbent for removal of radioactive cesium ions from aqueous solutions. The phase and textural features of the synthesized mesoporous monetite were well characterized by XRD, FTIR, SEM, HRTEM, DLS, TGA/TDA, and N adsorption/desorption techniques. The results indicate that the cesium ions were effectively adsorbed by the mesoporous monetite ion-exchanger (MMT-IEX) above pH 9.0. Different kinetic and isotherm models were applied to characterize the cesium adsorption process. The fabricated monetite exhibited a monolayer adsorption capacity up to 60.33 mg g at pH of 9.5. The collected data revealed the higher ability of CaHPO for the removal of Cs(i) from aqueous media in an efficient way.
我们在此报告了一种用于从水溶液中去除放射性铯离子的吸附剂——一种环保、低成本且高效的纳米结构介孔板状透钙磷石矿物（CaHPO）的制备方法。通过XRD、FTIR、SEM、HRTEM、DLS、TGA/TDA和N吸附/脱附技术对合成的介孔透钙磷石的相和结构特征进行了很好的表征。结果表明，在pH值高于9.0时，介孔透钙磷石离子交换剂（MMT-IEX）能有效吸附铯离子。应用不同的动力学和等温线模型来表征铯的吸附过程。所制备的透钙磷石在pH为9.5时表现出高达60.33 mg/g的单层吸附容量。收集的数据表明，CaHPO具有以高效方式从水介质中去除Cs(i)的更高能力。
Zotero 插件