Wasiak Tomasz, Hannula Pyry-Mikko, Lundström Mari, Janas Dawid
Department of Chemistry, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland.
Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Vuorimiehentie 2, 02150, Espoo, Finland.
Sci Rep. 2020 Nov 5;10(1):19190. doi: 10.1038/s41598-020-76374-x.
Large amounts of industrial metal containing process and waste solutions are a growing issue. In this work, we demonstrated that they could be transformed into materials of high added values such as copper-nickel nanowires (CuNi NWs) by simple chemical reduction. A thorough investigation of the parameter space was conducted. The microstructure of the obtained material was found tunable depending on the employed concentration of precursor, reducing agent, capping agent, pH, temperature, and reaction time. Moreover, the obtained product had a strong magnetic character, which enabled us to separate it from the reaction medium with ease. The results open new perspectives for materials science by proposing a new type of nanostructure: composite NWs of very promising properties, with metallic elements originating directly from industrial process solution.
大量含有工业金属的工艺和废液是一个日益严重的问题。在这项工作中，我们证明了通过简单的化学还原，它们可以被转化为具有高附加值的材料，如铜镍纳米线（CuNi NWs）。我们对参数空间进行了全面研究。发现所获得材料的微观结构可根据前驱体、还原剂、封端剂的使用浓度、pH值、温度和反应时间进行调节。此外，所获得的产物具有很强的磁性，这使我们能够轻松地将其与反应介质分离。这些结果通过提出一种新型纳米结构，为材料科学开辟了新的前景：具有非常有前景性能的复合纳米线，其金属元素直接来源于工业工艺溶液。
