Effect of different precursor anions on photocatalytic removing U(VI) performance of Cu2O

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-29 DOI:10.1007/s10967-025-10283-z

Lingshan Xiong, Youqun Wang, Weiqian Cai, Zhibin Zhang, Xiaohong Cao, Yunhai Liu

{"title":"Effect of different precursor anions on photocatalytic removing U(VI) performance of Cu2O","authors":"Lingshan Xiong, Youqun Wang, Weiqian Cai, Zhibin Zhang, Xiaohong Cao, Yunhai Liu","doi":"10.1007/s10967-025-10283-z","DOIUrl":null,"url":null,"abstract":"<div>Cu2O was synthesized via chemical precipitation at room temperature using ascorbic acid as the reducing agent and various copper precursors, including Cu(NO3)2·3H2O, CuSO4·5H2O, CuCl2·2H2O, and Cu(Ac)2·H2O. The structural and photoelectric properties of the synthesized Cu2O were measured. Photocatalytic removal of hexavalent uranium (U(VI)) was evaluated under visible light irradiation without the addition of sacrificial agents. The results showed that Cu2O (Cu2O-NR) synthesized with Cu(NO3)2·3H2O had an optimal removal efficiency of 97.8% within 180 min of illumination. This is attribute to its large specific surface area (52.24 m2/g), low charge transfer resistance, and excellent separation efficiency of photogenerated carriers. Furthermore, a possible photocatalytic mechanism was proposed. In summary, Cu(NO3)2·3H2O is as the most suitable precursor for preparing Cu2O by chemical precipitation method, enabling efficient photocatalytic removal of U(VI).</div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 8","pages":"5755 - 5770"},"PeriodicalIF":1.6000,"publicationDate":"2025-07-29","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/s10967-025-10283-z","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

Cu₂O was synthesized via chemical precipitation at room temperature using ascorbic acid as the reducing agent and various copper precursors, including Cu(NO₃)₂·3H₂O, CuSO₄·5H₂O, CuCl₂·2H₂O, and Cu(Ac)₂·H₂O. The structural and photoelectric properties of the synthesized Cu₂O were measured. Photocatalytic removal of hexavalent uranium (U(VI)) was evaluated under visible light irradiation without the addition of sacrificial agents. The results showed that Cu₂O (Cu₂O-NR) synthesized with Cu(NO₃)₂·3H₂O had an optimal removal efficiency of 97.8% within 180 min of illumination. This is attribute to its large specific surface area (52.24 m²/g), low charge transfer resistance, and excellent separation efficiency of photogenerated carriers. Furthermore, a possible photocatalytic mechanism was proposed. In summary, Cu(NO₃)₂·3H₂O is as the most suitable precursor for preparing Cu₂O by chemical precipitation method, enabling efficient photocatalytic removal of U(VI).

查看原文本刊更多论文

不同前驱阴离子对Cu2O光催化脱除U（VI）性能的影响

以抗坏血酸为还原剂，以Cu(NO3)2·3H2O、CuSO4·5H2O、CuCl2·2H2O、Cu(Ac)2·H2O为铜前驱体，采用室温化学沉淀法合成Cu2O。测定了合成的Cu2O的结构和光电性能。研究了在不添加牺牲剂的情况下，在可见光照射下光催化脱除六价铀（U(VI)）。结果表明，以Cu(NO3)2·3H2O为原料合成的Cu2O （Cu2O- nr）在光照180 min内的去除率达到97.8%。这是由于其比表面积大（52.24 m2/g），电荷转移电阻低，光生载流子分离效率高。此外，还提出了可能的光催化机理。综上所述，Cu(NO3)2·3H2O是化学沉淀法制备Cu2O最合适的前驱体，可以实现对U（VI）的高效光催化去除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

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.