{"title":"超声诱导海绵镉成核界面动力学调控及电化学优化。","authors":"Pengcheng Zhang, Hongliang Liu, Shixing Wang, Jinliang Zhang, Qingjian Chen, Likang Fu, Zhuoyu Yin, Fei Tang, Xin Zuo, Libo Zhang","doi":"10.1016/j.ultsonch.2025.107491","DOIUrl":null,"url":null,"abstract":"<p><p>The cementation method has become the dominant method for recovering cadmium from copper-cadmium slag leach solution due to its low cost and safety features. However, the conventional method has several limitations, including low zinc powder utilization, low sponge cadmium purity, and an extended production cycle. These limitations primarily stem from zinc powder agglomeration and the subsequent coverage of zinc particles by the product layer. In this study, the ultrasonic-enhanced zinc powder cementation process is proposed. Ultrasonic effectively dissociates the agglomeration and accelerate the reaction rate, improving the utilization of zinc powder and the grade of sponge cadmium. The cadmium cementation efficiency and the grade of sponge cadmium are increased by 24.56 % and 23.11 %. Kinetic experiments reveal that ultrasonic reduced the apparent activation energy by 21.34 kJ/mol. Moreover, the reduction potential exhibits a positive shift from -2.731 V to -2.432 V (vs. SCE). The current density increases from 0.146 A/cm<sup>2</sup> to 0.199 A/cm<sup>2</sup>. The self-corrosion potential reduces from -1.411 V to -1.453 V (vs. SCE). Simple economic analysis indicates that the benefits under ultrasonic method are significantly higher than conventional method. This work provides new insights into the application of ultrasonic in the recovery of cadmium from copper-cadmium slag.</p>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"120 ","pages":"107491"},"PeriodicalIF":9.7000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12355983/pdf/","citationCount":"0","resultStr":"{\"title\":\"Interfacial kinetics regulation and electrochemical optimization in ultrasonic-induced sponge cadmium nucleation.\",\"authors\":\"Pengcheng Zhang, Hongliang Liu, Shixing Wang, Jinliang Zhang, Qingjian Chen, Likang Fu, Zhuoyu Yin, Fei Tang, Xin Zuo, Libo Zhang\",\"doi\":\"10.1016/j.ultsonch.2025.107491\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The cementation method has become the dominant method for recovering cadmium from copper-cadmium slag leach solution due to its low cost and safety features. However, the conventional method has several limitations, including low zinc powder utilization, low sponge cadmium purity, and an extended production cycle. These limitations primarily stem from zinc powder agglomeration and the subsequent coverage of zinc particles by the product layer. In this study, the ultrasonic-enhanced zinc powder cementation process is proposed. Ultrasonic effectively dissociates the agglomeration and accelerate the reaction rate, improving the utilization of zinc powder and the grade of sponge cadmium. The cadmium cementation efficiency and the grade of sponge cadmium are increased by 24.56 % and 23.11 %. Kinetic experiments reveal that ultrasonic reduced the apparent activation energy by 21.34 kJ/mol. Moreover, the reduction potential exhibits a positive shift from -2.731 V to -2.432 V (vs. SCE). The current density increases from 0.146 A/cm<sup>2</sup> to 0.199 A/cm<sup>2</sup>. The self-corrosion potential reduces from -1.411 V to -1.453 V (vs. SCE). Simple economic analysis indicates that the benefits under ultrasonic method are significantly higher than conventional method. This work provides new insights into the application of ultrasonic in the recovery of cadmium from copper-cadmium slag.</p>\",\"PeriodicalId\":442,\"journal\":{\"name\":\"Ultrasonics Sonochemistry\",\"volume\":\"120 \",\"pages\":\"107491\"},\"PeriodicalIF\":9.7000,\"publicationDate\":\"2025-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12355983/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ultrasonics Sonochemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1016/j.ultsonch.2025.107491\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/7/31 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ultrasonics Sonochemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1016/j.ultsonch.2025.107491","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/7/31 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
Interfacial kinetics regulation and electrochemical optimization in ultrasonic-induced sponge cadmium nucleation.
The cementation method has become the dominant method for recovering cadmium from copper-cadmium slag leach solution due to its low cost and safety features. However, the conventional method has several limitations, including low zinc powder utilization, low sponge cadmium purity, and an extended production cycle. These limitations primarily stem from zinc powder agglomeration and the subsequent coverage of zinc particles by the product layer. In this study, the ultrasonic-enhanced zinc powder cementation process is proposed. Ultrasonic effectively dissociates the agglomeration and accelerate the reaction rate, improving the utilization of zinc powder and the grade of sponge cadmium. The cadmium cementation efficiency and the grade of sponge cadmium are increased by 24.56 % and 23.11 %. Kinetic experiments reveal that ultrasonic reduced the apparent activation energy by 21.34 kJ/mol. Moreover, the reduction potential exhibits a positive shift from -2.731 V to -2.432 V (vs. SCE). The current density increases from 0.146 A/cm2 to 0.199 A/cm2. The self-corrosion potential reduces from -1.411 V to -1.453 V (vs. SCE). Simple economic analysis indicates that the benefits under ultrasonic method are significantly higher than conventional method. This work provides new insights into the application of ultrasonic in the recovery of cadmium from copper-cadmium slag.
期刊介绍:
Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels.
Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.