A. G. Kazakov, T. Yu. Ekatova, S. E. Vinokurov, B. F. Myasoedov
{"title":"Nanosized Needle Petroleum Coke as a Promising Sorbent for Recovering Radionuclides from Aqueous Solutions","authors":"A. G. Kazakov, T. Yu. Ekatova, S. E. Vinokurov, B. F. Myasoedov","doi":"10.1134/S1066362225060104","DOIUrl":null,"url":null,"abstract":"<p>The possibility of using activated needle petroleum coke (NPC), a carbon nanomaterial with the specific surface area of approximately 2500–3500 m<sup>2</sup>/g, as a sorbent for recovering radionuclides from aqueous solutions was examined. The physicochemical properties of NPC and the distribution coefficients (<i>K</i><sub>d</sub>) of actinides, fission products, and radium on NPC samples in nitric acid, neutral, and weakly alkaline solutions, including those with high salt content, were determined. High salt concentrations favor an increase in <i>K</i><sub>d</sub>, which is untypical of carbon nanomaterials. NPC shows promise for recovering and concentrating uranium, americium, and rare earth element isotopes from contaminated groundwater, river water, and seawater and from solutions of neutralized liquid radioactive waste.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"67 6","pages":"856 - 863"},"PeriodicalIF":1.0000,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1066362225060104","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
The possibility of using activated needle petroleum coke (NPC), a carbon nanomaterial with the specific surface area of approximately 2500–3500 m2/g, as a sorbent for recovering radionuclides from aqueous solutions was examined. The physicochemical properties of NPC and the distribution coefficients (Kd) of actinides, fission products, and radium on NPC samples in nitric acid, neutral, and weakly alkaline solutions, including those with high salt content, were determined. High salt concentrations favor an increase in Kd, which is untypical of carbon nanomaterials. NPC shows promise for recovering and concentrating uranium, americium, and rare earth element isotopes from contaminated groundwater, river water, and seawater and from solutions of neutralized liquid radioactive waste.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
