Synthesis and characterization of hybrid nanocatalyst (AgNPs-Fe2O3) for catalytic remediation of hazardous 2,4-dinitrophenol

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-29 DOI:10.4314/bcse.v38i1.9

M. Sivakavinesan, M. Vanaja, M. Anto-Rishiba, E. Amutha, G. Annadurai, R. Mariselvam, Tahani Tahani Awad Alahmadi, Sulaiman Ali Alharbi, G. Tamilselvan

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Abstract

Hybridized nanocatalysts (AgNPs-Fe2O3) were prepared with silver nitrate and ferric chloride in the presence of sodium borohydride. The synthesized nanocatalyst was calcined, milled, and sieved for further applications. The nanocatalyst was characterized using Fourier transform infrared spectroscopy (FTIR) for the identification of functional moieties involved in the synthesis of the nanocatalyst. The vibrations of Fe and Ag were found at 566, 790 and 892 cm-1. The crystalline nature of the nanocatalyst was determined using X-ray diffraction (XRD) studies. The diffraction peaks for Ag and Fe can be seen at 2θ values of 30.42, 44.36, 62.45, 42.24 and 53.25. The morphology and elemental analysis of nanocatalysts were studied using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDAX). The particles are found to be spherical in shape. The signal for Ag and Fe can be found at 3.0 keV and 0.7, 6.3, 7.0 keV, respectively. The synthesized nanocatalyst was employed in the remediation of 2,4-dinitrophenol. The AgNPs-Fe2O3 nanocatalyst completely reduced (97%) the 2,4-dinitrophenol to 2,4-diaminophenol within 24 h. KEY WORDS: Nanocatalyst, Chemical precipitation, Impregnation methodology, Milling, Sieving, Remediation Bull. Chem. Soc. Ethiop. 2024, 38(1), 113-121. DOI: https://dx.doi.org/10.4314/bcse.v38i1.9

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用于催化修复有害的 2,4-二硝基苯酚的混合纳米催化剂（AgNPs-Fe2O3）的合成与表征

在硼氢化钠存在下，用硝酸银和氯化铁制备了杂化纳米催化剂（AgNPs-Fe2O3）。合成的纳米催化剂经煅烧、研磨和筛分后可进一步应用。使用傅立叶变换红外光谱（FTIR）对纳米催化剂进行了表征，以确定纳米催化剂合成过程中涉及的功能分子。在 566、790 和 892 cm-1 处发现了铁和银的振动。通过 X 射线衍射 (XRD) 研究确定了纳米催化剂的结晶性质。在 2θ 值为 30.42、44.36、62.45、42.24 和 53.25 处可以看到银和铁的衍射峰。使用扫描电子显微镜（SEM）和能量色散 X 射线光谱（EDAX）对纳米催化剂的形态和元素分析进行了研究。发现颗粒呈球形。银和铁的信号分别出现在 3.0 keV 和 0.7、6.3、7.0 keV 处。合成的纳米催化剂被用于 2,4-二硝基苯酚的修复。AgNPs-Fe2O3 纳米催化剂在 24 小时内将 2,4-二硝基苯酚完全还原为 2,4-二氨基苯酚（97%）。关键词：纳米催化剂化学沉淀浸渍法研磨筛分修复 Bull.Chem.Soc.2024, 38(1), 113-121.DOI: https://dx.doi.org/10.4314/bcse.v38i1.9

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.