Mengyue Ma, Weixuan Sang, Yishuo Zhang, Xiaoyan Li
{"title":"用 Al0/Ni0 双金属材料从水溶液中去除铀(VI)","authors":"Mengyue Ma, Weixuan Sang, Yishuo Zhang, Xiaoyan Li","doi":"10.1007/s11164-024-05356-9","DOIUrl":null,"url":null,"abstract":"<div><p>The widespread use of nuclear energy has led to a growing concern over environmental pollution resulted from uranium which has prompted global attention on wastewater treatment. Zero valent aluminum and zero valent nickel metals have been used by numerous researchers both domestically and internationally to removal U(VI) from aqueous solution due to their unique chemical properties. In this work, Al<sup>0</sup>/Ni<sup>0</sup> bimetallic material (Al<sup>0</sup>/Ni<sup>0</sup>-BM) was prepared by synchronous liquid-phase reduction method. Due to the structure of bimetallic material and synergistic effect, it exhibited a higher removal rate compared with single zero valent metal. At room temperature (25 ℃), the initial concentration of U(VI) was 20 mg/L, pH was 3.0, dosage was 0.25 g/L, and the removal rate could reach 98.90% after 60 min of reaction, well-fitting with the pseudo-second-order kinetic model, reduction model, and Langmuir isothermal adsorption model. The high removal performance was attributed to the electron transfer mechanism between material and U element and the adsorption effect of corresponding hydroxides. The thermodynamic parameters demonstrated that the adsorption of U(VI) on the Al<sup>0</sup>/Ni<sup>0</sup>-BM was an endothermic and spontaneous process controlled by physical and chemical adsorptions. And the synthesized Al<sup>0</sup>/Ni<sup>0</sup>-BM effectively improved the aggregation of zero valent metals in monomers. In conclusion, Al<sup>0</sup>/Ni<sup>0</sup>-BM showed an excellent potential for U(VI) removal from aqueous solution by zero valent bimetallic materials.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"50 9","pages":"4485 - 4501"},"PeriodicalIF":2.8000,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Removal of U(VI) from aqueous solution by Al0/Ni0 bimetallic material\",\"authors\":\"Mengyue Ma, Weixuan Sang, Yishuo Zhang, Xiaoyan Li\",\"doi\":\"10.1007/s11164-024-05356-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The widespread use of nuclear energy has led to a growing concern over environmental pollution resulted from uranium which has prompted global attention on wastewater treatment. Zero valent aluminum and zero valent nickel metals have been used by numerous researchers both domestically and internationally to removal U(VI) from aqueous solution due to their unique chemical properties. In this work, Al<sup>0</sup>/Ni<sup>0</sup> bimetallic material (Al<sup>0</sup>/Ni<sup>0</sup>-BM) was prepared by synchronous liquid-phase reduction method. Due to the structure of bimetallic material and synergistic effect, it exhibited a higher removal rate compared with single zero valent metal. At room temperature (25 ℃), the initial concentration of U(VI) was 20 mg/L, pH was 3.0, dosage was 0.25 g/L, and the removal rate could reach 98.90% after 60 min of reaction, well-fitting with the pseudo-second-order kinetic model, reduction model, and Langmuir isothermal adsorption model. The high removal performance was attributed to the electron transfer mechanism between material and U element and the adsorption effect of corresponding hydroxides. The thermodynamic parameters demonstrated that the adsorption of U(VI) on the Al<sup>0</sup>/Ni<sup>0</sup>-BM was an endothermic and spontaneous process controlled by physical and chemical adsorptions. And the synthesized Al<sup>0</sup>/Ni<sup>0</sup>-BM effectively improved the aggregation of zero valent metals in monomers. In conclusion, Al<sup>0</sup>/Ni<sup>0</sup>-BM showed an excellent potential for U(VI) removal from aqueous solution by zero valent bimetallic materials.</p></div>\",\"PeriodicalId\":753,\"journal\":{\"name\":\"Research on Chemical Intermediates\",\"volume\":\"50 9\",\"pages\":\"4485 - 4501\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-07-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research on Chemical Intermediates\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11164-024-05356-9\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research on Chemical Intermediates","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11164-024-05356-9","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Removal of U(VI) from aqueous solution by Al0/Ni0 bimetallic material
The widespread use of nuclear energy has led to a growing concern over environmental pollution resulted from uranium which has prompted global attention on wastewater treatment. Zero valent aluminum and zero valent nickel metals have been used by numerous researchers both domestically and internationally to removal U(VI) from aqueous solution due to their unique chemical properties. In this work, Al0/Ni0 bimetallic material (Al0/Ni0-BM) was prepared by synchronous liquid-phase reduction method. Due to the structure of bimetallic material and synergistic effect, it exhibited a higher removal rate compared with single zero valent metal. At room temperature (25 ℃), the initial concentration of U(VI) was 20 mg/L, pH was 3.0, dosage was 0.25 g/L, and the removal rate could reach 98.90% after 60 min of reaction, well-fitting with the pseudo-second-order kinetic model, reduction model, and Langmuir isothermal adsorption model. The high removal performance was attributed to the electron transfer mechanism between material and U element and the adsorption effect of corresponding hydroxides. The thermodynamic parameters demonstrated that the adsorption of U(VI) on the Al0/Ni0-BM was an endothermic and spontaneous process controlled by physical and chemical adsorptions. And the synthesized Al0/Ni0-BM effectively improved the aggregation of zero valent metals in monomers. In conclusion, Al0/Ni0-BM showed an excellent potential for U(VI) removal from aqueous solution by zero valent bimetallic materials.
期刊介绍:
Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry.
The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.