Ecofriendly synthesis of PdNPs using Eupatorium adenophorum leaf extract and their catalytic properties

IF 2.8 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Research on Chemical Intermediates Pub Date : 2024-08-08 DOI:10.1007/s11164-024-05369-4

Sagiraju Shashank Dutt, Bhagavanth Reddy Gangapuram, Izhar Ahmed, Surendar Reddy Jakka, Radha Krishna Reddy Mardi, Kondaiah Seku

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Abstract

This study reported the synthesis of well-dispersed palladium nanoparticles (PdNPs) using microwaves. Additionally, this method is quick, cheap, chemical-free, and environmentally friendly. The Eupatorium adenophorum aqueous extract, which contains polysaccharides and other phytochemicals, effectively reduced and stabilized PdNPs. We have preliminarily confirmed that PdNPs form via UV–visible spectroscopy and proposed a mechanism of PdNPs formation via Fourier transform infrared spectroscopy. EA-PdNPs have a face-centred cubic structure, as confirmed by XRD analysis. The images obtained by transmission electron microscopy showed spherical PdNPs whose average size was 11 ± 2 nm. EA-PdNPs showed good catalytic activity towards the reduction of methylene blue (MB), congo red (CR) dyes, and 4-nitrophenol (4-NP). It was found that EA-PdNPs showed a reduction efficiency of 94% against MB, CR, and 4-NP dyes even after five cycles. EA-PdNPs are anticipated to contribute to environmental water remediation significantly.

Graphical abstract

Schematic representation of the synthesis of EA-PdNPs and their catalytic applications

Abstract Image

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利用大戟叶提取物以生态友好方式合成 PdNPs 及其催化特性

本研究报告了利用微波合成分散良好的钯纳米粒子（PdNPs）的方法。此外，该方法快速、廉价、不含化学物质且环保。含有多糖和其他植物化学物质的大戟科植物腺嘌呤水提取物能有效还原和稳定 PdNPs。我们通过紫外可见光谱初步证实了 PdNPs 的形成，并通过傅里叶变换红外光谱提出了 PdNPs 的形成机制。经 XRD 分析证实，EA-PdNPs 具有面心立方结构。透射电子显微镜获得的图像显示 PdNPs 呈球形，平均尺寸为 11 ± 2 nm。EA-PdNPs 在还原亚甲基蓝（MB）、刚果红（CR）染料和 4-硝基苯酚（4-NP）方面表现出良好的催化活性。研究发现，即使经过五个循环，EA-PdNPs 对 MB、CR 和 4-NP 染料的还原效率也高达 94%。预计 EA-PdNPs 将为环境水修复做出重大贡献。图表摘要 EA-PdNPs 的合成及其催化应用示意图

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来源期刊

Research on Chemical Intermediates 化学-化学综合

CiteScore

5.70

自引率

18.20%

发文量

229

审稿时长

2.6 months

期刊介绍： Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry. The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.