{"title":"Adsorption of Eu(III) on rutile in the presence of complexing inorganic anions: a combined macroscopic and spectroscopic investigation","authors":"Wanqiang Zhou, Yao Li, Chunli Liu","doi":"10.1007/s10967-024-09711-3","DOIUrl":null,"url":null,"abstract":"<p>Knowledge of the geochemical behavior of europium is important for the safe disposal of radioactive wastes. Complexing inorganic anions are ubiquitous in repository environments and can affect europium adsorption behaviors significantly. This work comprehensively studied the Eu(III) adsorption on rutile in the presence of complexing inorganic anions. Our results indicated that sulfate and carbonate had a negligible impact on Eu(III) adsorption, while phosphate could strongly enhance the adsorption. The spectral results suggested that phosphate would enhance Eu(III) adsorption by forming a phosphate-bridged complex on rutile surface under acidic conditions, while promoting adsorption by surface precipitation under alkaline conditions.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10967-024-09711-3","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Knowledge of the geochemical behavior of europium is important for the safe disposal of radioactive wastes. Complexing inorganic anions are ubiquitous in repository environments and can affect europium adsorption behaviors significantly. This work comprehensively studied the Eu(III) adsorption on rutile in the presence of complexing inorganic anions. Our results indicated that sulfate and carbonate had a negligible impact on Eu(III) adsorption, while phosphate could strongly enhance the adsorption. The spectral results suggested that phosphate would enhance Eu(III) adsorption by forming a phosphate-bridged complex on rutile surface under acidic conditions, while promoting adsorption by surface precipitation under alkaline conditions.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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