Study of Structural and Optical Behaviour of Silver -Copper Bimetallic Nanoparticles

R. S. M. Ponrani, D. E. Nancy, S. G. Rejith, S. Durai
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Abstract

Silver-based nanomaterials have proven interesting and promising material for numerous applications such as biosensor, antimicrobial, anticancer agent, catalyst, food and water treatment, energy storage devices etc.In this study, nanoparticles of Silver and Copper were prepared by chemical reduction method, using hydrazine hydrate and Sodium borohydride as reducing agent. Fine powder of Ag-Cu nanoparticles (NPs)was obtained. The structural analysis of the sample wasdone using Powder XRD, SEM and TEM images and particle size analysis by DLS.The chemical purity and the elemental compositions of synthesized NPs were studied using SEM-EDX. Optical properties of the Ag-Cu NPs were analyzed using UV-DRS spectrum and FTIR spectrum. PXRD reveals that the NPs are highly crystalline in nature.The average crystallite size is30 nm. SEM and TEM images confirm the spherical morphology and the particle size is in nm. The DLS-particle size analyzer shows the size distribution of most of the NPs ranging from 9 nm to 100 nm. The EDX analysis reveals the percentage of elemental composition as 14.71, 9.06 and 76.23 for silver, copper and oxygen respectively. UV-DRS spectrum shows the absorption maximum occur at 371 nm. Due to the synergistic effect of silver and copper, there is blue shift in the absorption maximum. The IR spectrum discloses the metal oxide bond in the synthesized NPs.
银铜双金属纳米粒子的结构和光学行为研究
银基纳米材料在生物传感器、抗菌剂、抗癌剂、催化剂、食品和水处理、储能装置等众多应用领域都被证明是有趣且有前途的材料。在本研究中,使用水合肼和硼氢化钠作为还原剂,通过化学还原法制备了银和铜的纳米颗粒。该研究以水合肼和硼氢化钠为还原剂,采用化学还原法制备了银铜纳米粒子,并获得了银铜纳米粒子(NPs)的细粉末。利用粉末 XRD、SEM 和 TEM 图像对样品进行了结构分析,并利用 DLS 对粒度进行了分析。利用 UV-DRS 光谱和傅立叶变换红外光谱分析了银铜 NPs 的光学性质。PXRD 显示,NPs 具有高结晶性,平均结晶尺寸为 30 nm。扫描电子显微镜(SEM)和透射电子显微镜(TEM)图像证实了其球形形态,粒径为 nm。DLS 粒度分析仪显示,大多数 NPs 的粒度分布在 9 nm 到 100 nm 之间。EDX 分析显示,银、铜和氧的元素组成百分比分别为 14.71、9.06 和 76.23。UV-DRS 光谱显示,吸收最大值出现在 371 纳米处。由于银和铜的协同作用,吸收最大值发生了蓝移。红外光谱显示合成的 NPs 中存在金属氧化物键。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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