Phyto-mediated facile synthesis of ZnO nanoparticles: enhanced photocatalysis, biological, and electrochemical properties

IF 2.4 4区 化学 Q3 CHEMISTRY, PHYSICAL
Ionics Pub Date : 2024-07-23 DOI:10.1007/s11581-024-05710-2
M. Thejaswini, V. Lakshmi Ranganatha, H. B. Vasanth Patil, S. Pramila, G. Nagaraju, C. Mallikarjunaswamy
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Abstract

In the present work, zinc oxide nanoparticles (ZnO NPs) were prepared via a simple and eco-friendly combustion method employing Cleome gynandra seed extract as a fuel. The synthesized ZnO NPs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray studies (EDX), Fourier-transform infrared spectroscopy (IR), Raman spectroscopy, and UV spectroscopy (UV–Vis). XRD confirmed the crystalline nature of the material with a hexagonal wurtzite structure having an average crystallite size of 28 nm. SEM images confirm the formation of spherical with agglomerated forms of ZnO NPs. FTIR spectrum shows the band at 580 cm−1 due to the vibrational mode of Zn–O bending. The band gap of the ZnO was found to be 3.00 eV. Photocatalytic activity of ZnO NPs was assessed using methylene blue (MB) dye under UV light irradiation, demonstrating an admirable 94% degradation around 120 min. The electrochemical studies of the ZnO-modified carbon paste electrode exhibit superior oxidation and reduction potential and also show promising electrode material for H2O2 and ascorbic acid sensors. Further, these NPs also exhibit antioxidant and antimicrobial properties and are biocompatible with lymphocytes. Therefore, the synthesized material has good photocatalytic, electrochemical, antibacterial, and antimicrobial properties.

Abstract Image

植物介导的 ZnO 纳米粒子的简易合成:增强的光催化、生物和电化学特性
在本研究中,采用一种简单、环保的燃烧方法,以克利奥米种子提取物为燃料,制备了氧化锌纳米粒子(ZnO NPs)。通过 X 射线衍射(XRD)、扫描电子显微镜(SEM)、能量色散 X 射线研究(EDX)、傅立叶变换红外光谱(IR)、拉曼光谱和紫外光谱(UV-Vis)对合成的氧化锌纳米粒子进行了表征。XRD 证实了该材料的结晶性质,具有平均结晶尺寸为 28 纳米的六方菱面体结构。扫描电子显微镜(SEM)图像证实 ZnO NPs 形成了球状和团聚状。傅立叶变换红外光谱显示,在 580 cm-1 处有 Zn-O 弯曲振动模式产生的波段。氧化锌的带隙为 3.00 eV。在紫外光照射下,使用亚甲基蓝(MB)染料对 ZnO NPs 的光催化活性进行了评估,结果表明其在 120 分钟左右的降解率高达 94%。对 ZnO 改性碳浆电极进行的电化学研究表明,该电极具有优异的氧化和还原电位,同时也是 H2O2 和抗坏血酸传感器的理想电极材料。此外,这些 NPs 还具有抗氧化和抗菌特性,并与淋巴细胞具有生物相容性。因此,合成的材料具有良好的光催化、电化学、抗菌和抑菌特性。
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来源期刊
Ionics
Ionics 化学-电化学
CiteScore
5.30
自引率
7.10%
发文量
427
审稿时长
2.2 months
期刊介绍: Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.
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