镍改性膨润土对137Cs和152+154Eu的吸附行为:动力学、等温线和色谱柱应用

IF 1.4 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR Radiochimica Acta Pub Date : 2023-11-03 DOI:10.1515/ract-2023-0168

Mohamed R. Abass, Sara S. Mahrous, Muhammad S. Mansy

{"title":"镍改性膨润土对137Cs和152+154Eu的吸附行为:动力学、等温线和色谱柱应用","authors":"Mohamed R. Abass, Sara S. Mahrous, Muhammad S. Mansy","doi":"10.1515/ract-2023-0168","DOIUrl":null,"url":null,"abstract":"Abstract Using batch and column procedures, the present work investigated the sorption behaviour of 137 Cs and 152+154 Eu by bentonite phosphate modified with nickel (BPN) sorbent. The kinetic data obey pseudo-1 st -order for 137 Cs and follow pseudo-2 nd -order for 152+154 Eu. Various sorption isotherm models were used to analyze equilibrium data. The thermodynamic functions reflect an endothermic and spontaneous sorption process. HCl (about 95.35 %) and CaCl 2 (about 98.13 %) showed the optimum eluents for the complete recovery of both 137 Cs and 152+154 Eu, respectively. Finally, column data show that 137 Cs and 152+154 Eu may be loaded on BNP sorbent and separated from an aqueous solution using a variety of HCl concentrations as eluent. The obtianed results revealed that BNP sorbent is suitable for recovering 137 Cs and 152+154 Eu from low-level radioactive waste effluents (LLW).","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sorption behaviour of <sup>137</sup>Cs and <sup>152+154</sup>Eu onto bentonite phosphate modified with nickel: kinetics, isotherms, and chromatographic column application\",\"authors\":\"Mohamed R. Abass, Sara S. Mahrous, Muhammad S. Mansy\",\"doi\":\"10.1515/ract-2023-0168\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Using batch and column procedures, the present work investigated the sorption behaviour of 137 Cs and 152+154 Eu by bentonite phosphate modified with nickel (BPN) sorbent. The kinetic data obey pseudo-1 st -order for 137 Cs and follow pseudo-2 nd -order for 152+154 Eu. Various sorption isotherm models were used to analyze equilibrium data. The thermodynamic functions reflect an endothermic and spontaneous sorption process. HCl (about 95.35 %) and CaCl 2 (about 98.13 %) showed the optimum eluents for the complete recovery of both 137 Cs and 152+154 Eu, respectively. Finally, column data show that 137 Cs and 152+154 Eu may be loaded on BNP sorbent and separated from an aqueous solution using a variety of HCl concentrations as eluent. The obtianed results revealed that BNP sorbent is suitable for recovering 137 Cs and 152+154 Eu from low-level radioactive waste effluents (LLW).\",\"PeriodicalId\":21167,\"journal\":{\"name\":\"Radiochimica Acta\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiochimica Acta\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/ract-2023-0168\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochimica Acta","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/ract-2023-0168","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}

引用次数: 0

摘要

摘要采用间歇和柱相结合的方法，研究了镍改性磷酸盐膨润土(BPN)对137 Cs和152+154 Eu的吸附行为。137cs的动力学数据服从伪-1阶，152eu的动力学数据服从伪-2阶。采用不同的吸附等温线模型对平衡数据进行分析。热力学函数反映了吸热自发吸附过程。HCl(95.35%)和cacl2(98.13%)分别是完全回收137 Cs和152+154 Eu的最佳洗脱剂。最后，柱数据表明，137cs和152+154 Eu可以负载在BNP吸附剂上，并使用不同浓度的HCl作为洗脱剂从水溶液中分离出来。结果表明，BNP吸附剂适用于低放射性废水中的137cs和152+154 Eu的回收。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Sorption behaviour of ¹³⁷Cs and ^152+154Eu onto bentonite phosphate modified with nickel: kinetics, isotherms, and chromatographic column application

Abstract Using batch and column procedures, the present work investigated the sorption behaviour of 137 Cs and 152+154 Eu by bentonite phosphate modified with nickel (BPN) sorbent. The kinetic data obey pseudo-1 st -order for 137 Cs and follow pseudo-2 nd -order for 152+154 Eu. Various sorption isotherm models were used to analyze equilibrium data. The thermodynamic functions reflect an endothermic and spontaneous sorption process. HCl (about 95.35 %) and CaCl 2 (about 98.13 %) showed the optimum eluents for the complete recovery of both 137 Cs and 152+154 Eu, respectively. Finally, column data show that 137 Cs and 152+154 Eu may be loaded on BNP sorbent and separated from an aqueous solution using a variety of HCl concentrations as eluent. The obtianed results revealed that BNP sorbent is suitable for recovering 137 Cs and 152+154 Eu from low-level radioactive waste effluents (LLW).

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊