Romanovski Valentin, Roslyakov Sergey, Trusov German, Periakaruppan Rajiv, Romanovskaia Elena, Chan Ho Lun, Moskovskikh Dmitry
Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA, 22904, USA.
Center of Functional Nano-Ceramics, National University of Science and Technology "MISIS", Lenin Av., 4, 119049, Moscow, Russia.
Environ Sci Pollut Res Int. 2023 Feb;30(9):23363-23371. doi: 10.1007/s11356-022-23918-5. Epub 2022 Nov 2.
Implementation of nanotechnology in agriculture is of interest primarily to improve the growth and productivity of crops, and to minimize the use of traditional expensive chemical fertilizers. This work presents a simple energy-conservative approach for the synthesis of CoCuFeNi high entropy alloy nanoparticles (HEA-NPs) capable of forming a stable suspension with a concentration of 0.3 g/L. The size, composition, and morphology of the nanoparticles were analyzed by XRD, SEM, TEM, and EDS. Obtained HEA-NPs were characterized by fine crystallinity with an average size of 25 nm. The investigated suspensions of HEA-NPs were tested for seeds germination and plants growth. The use of suspension of CoCuFeNi HEA-NPs for plant irrigating together with ordinary water showed positive results in plant biostimulation, which resulted in the plant height up to 12% for watercress and up to 50% for oil radish. CoCuFeNi HEA-NPs showed nice inactivation activity for Pseudomonas aeruginosa that was comparable for the use of Tetracycline.
纳米技术在农业中的应用主要是为了提高作物的生长和产量，并尽量减少传统昂贵化肥的使用。这项工作提出了一种简单的节能方法来合成能够形成浓度为0.3 g/L的稳定悬浮液的CoCuFeNi高熵合金纳米颗粒（HEA-NPs）。通过XRD、SEM、TEM和EDS分析了纳米颗粒的尺寸、组成和形态。所获得的HEA-NPs具有良好的结晶度，平均尺寸为25 nm。对所研究的HEA-NPs悬浮液进行了种子发芽和植物生长测试。将CoCuFeNi HEA-NPs悬浮液与普通水一起用于植物灌溉，在植物生物刺激方面显示出积极效果，西洋菜的株高提高了12%，油菜萝卜的株高提高了50%。CoCuFeNi HEA-NPs对铜绿假单胞菌显示出良好的灭活活性，与使用四环素的效果相当。
