Green Synthesis of Novel Rhododendron arboreum-Based Zinc Oxide Nanoparticles for Enhanced Antimicrobial and Photocatalytic Degradation Activities

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysts Pub Date : 2024-05-22 DOI:10.3390/catal14060337

Sajid Ali, Sidra, Tanveer Asghar, Muhammad Ishtiaq Jan, Muhammad Waqas, Tahir Ali, Riaz Ullah, Ahmed Bari

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Abstract

Zinc oxide nanoparticles (ZnO NPs) are becoming an innovative agent in biological and environmental applications due to its unique characteristics, biocompatibility, low cost and toxicity. In this study, the composite ZnO NPs using Rhododendron arboreum (R. arboreum) stem bark were synthesized and characterized for UV–visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The biomedical assessment of the synthesized nanoparticles showed zones of inhibition of 23 ± 0.09, 18 ± 0.1 and 16 ± 0.05 mm, against the Klebsiella pneumoniae (K. pneumoniae), Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) strains, respectively. Likewise, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values against K. pneumoniae, S. aureus, and E. coli were found to be 34 ± 0.21 and 72.71 ± 0.47, 47 ± 0.11 and 94.86 ± 0.84 and 94 ± 0.18 and 185.43 ± 0.16 µg/mL, respectively. The biosynthesized ZnO NPs resulted in significant eradication of the outer and inner membranes of the tested bacterial cells. In addition, the environmental application of the synthesized ZnO NPs also showed time-dependent photocatalytic degradation activity and revealed 65% methyl orange dye degradation with an irradiation period of 6 h. The findings of this study suggest the suitability of the novel R. arboreum stem bark-based ZnO NPs as an effective ameliorant against bactericidal activities and photocatalytic potential for the removal of potentially toxic substances from water.

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基于杜鹃花的新型氧化锌纳米粒子的绿色合成，用于增强抗菌和光催化降解活性

氧化锌纳米粒子（ZnO NPs）因其独特的特性、生物相容性、低成本和低毒性，正成为生物和环境应用领域的创新药剂。本研究利用杜鹃花（Rododendron arboreum）茎皮合成了复合 ZnO NPs，并利用紫外可见光谱（UV-vis）、傅立叶变换红外光谱（FTIR）、能量色散 X 射线光谱（EDX）、扫描电子显微镜（SEM）和 X 射线衍射（XRD）对其进行了表征。对合成纳米粒子的生物医学评估显示，其对肺炎克雷伯氏菌（K. pneumoniae）、金黄色葡萄球菌（S. aureus）和大肠埃希氏菌（E. coli）的抑制面积分别为 23 ± 0.09 毫米、18 ± 0.1 毫米和 16 ± 0.05 毫米。同样，对肺炎金葡菌、金黄色葡萄球菌和大肠杆菌的最低抑菌浓度（MIC）和最低杀菌浓度（MBC）分别为 34 ± 0.21 和 72.71 ± 0.47，47 ± 0.11 和 94.86 ± 0.84，94 ± 0.18 和 185.43 ± 0.16 µg/mL。生物合成的 ZnO NPs 能显著消除受测细菌细胞的外膜和内膜。此外，合成的 ZnO NPs 在环境应用中也表现出了随时间变化的光催化降解活性，在 6 小时的照射时间内，65% 的甲基橙染料被降解。这项研究的结果表明，基于树干树皮的新型 ZnO NPs 适合作为一种有效的杀菌剂，并具有光催化去除水中潜在有毒物质的潜力。

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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来源期刊

Catalysts CHEMISTRY, PHYSICAL-

CiteScore

6.80

自引率

7.70%

发文量

1330

审稿时长

3 months

期刊介绍： Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.

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