Qi Li, Jiaqi Wang, Hairui Hou, Min Wang, Shujun Yu, Huan Xu, Dong Fu, Xiangxue Wang
{"title":"Efficient uranium removal by amidoxime functionalized graphitic carbon nitride and its potential mechanism","authors":"Qi Li, Jiaqi Wang, Hairui Hou, Min Wang, Shujun Yu, Huan Xu, Dong Fu, Xiangxue Wang","doi":"10.1007/s10967-024-09848-1","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, an amidoxime functionalized graphitic carbon nitride (g–C<sub>3</sub>N<sub>4</sub>–AO) was prepared by grafting amidoxime groups onto graphitic carbon nitride (g–C<sub>3</sub>N<sub>4</sub>). The results of the kinetic and isotherm studies conducted on g–C<sub>3</sub>N<sub>4</sub>–AO indicate it exhibits rapid sorption kinetics by achieving equilibrium in 30 min with a homogeneous surface which performed a maximum sorption capacity of 67.1 mg g<sup>−1</sup>. The zeta potential values of the g–C<sub>3</sub>N<sub>4</sub>–AO are between 35 to − 44.3 mV in the pH range of 2.0–11.0. It was further observed that it complexes with uranium ions, which act as bidentate ligands, utilizing the lone pairs on O and N atoms. The empirical evidence strongly suggests that the utilization of g–C<sub>3</sub>N<sub>4</sub>–AO in uranium water remediation can be a promising solution.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 1","pages":"419 - 431"},"PeriodicalIF":1.5000,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-024-09848-1","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, an amidoxime functionalized graphitic carbon nitride (g–C3N4–AO) was prepared by grafting amidoxime groups onto graphitic carbon nitride (g–C3N4). The results of the kinetic and isotherm studies conducted on g–C3N4–AO indicate it exhibits rapid sorption kinetics by achieving equilibrium in 30 min with a homogeneous surface which performed a maximum sorption capacity of 67.1 mg g−1. The zeta potential values of the g–C3N4–AO are between 35 to − 44.3 mV in the pH range of 2.0–11.0. It was further observed that it complexes with uranium ions, which act as bidentate ligands, utilizing the lone pairs on O and N atoms. The empirical evidence strongly suggests that the utilization of g–C3N4–AO in uranium water remediation can be a promising solution.
期刊介绍：
An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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