期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 12, 期 -, 页码 455-470出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2021.02.063
关键词
Seedless method; Phytochemicals; Decolorization; Ag-Fe nanoparticles; Salvia officinalis
资金
- Deanship of Scientific Research (DSR) at King Abdulaziz University, Jeddah [G: 1382-130-1440]
- DSR
The synergistic effect between two different metals significantly enhances the catalytic properties of bimetallic nanoparticles. In this study, Ag-Fe bimetallic nanoparticles were successfully synthesized through a green, seedless method using phytochemicals. The nanoparticles showed efficient catalytic activity in the degradation of 4-nitrophenol to 4-aminophenol, confirming their potential in environmental remediation applications.
The synergy between two different metals provides a dramatic enhancement in the bimetallic nanoparticles' catalytic properties since bimetallization improves the properties associated with the presence of two individual metals. Therefore, herein, we reported the facile, seedless, one-pot green synthesis of Ag-Fe bimetallic nanoparticles via reduction process using phytochemicals present in the Salvia officinalis aqueous extract. During the Phyto-assisted nanofabrication of Ag-Fe nanoparticles, the reduction of Ag+ and Fe3+ metal ions to Ag-Fe NPs takes place according to their reduction potential. The UV-visible spectroscopic technique was initially used for the Ag-Fe nanoparticle formation in which the absorption band at 450 nm, 350 nm, and 352 nm were observed for AgNPs, FeNPs, and Ag-Fe nanoparticles, respectively. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) analysis were used to investigate the size and shape of bio-synthesized Ag-Fe nanoparticles, and it was revealed that the as-synthesized Ag-Fe nanoparticles are nearly spherical with an average size of 30 nm. X-ray diffraction (XRD) study was carried out to analyze the purity of the Ag-Fe nanoparticles. Fourier transform infrared spectroscopy (FTIR) analysis was performed to confirm the role of reducing and capping/stabilizing agents in the synthesis of Ag-Fe bimetallic nanoparticles. The successful biosynthesis of Ag-Fe nanoparticles was also confirmed by X-ray energy-dispersive spectrometry (EDX) analysis. Thermogravimetric analysis (TGA) was used to investigate the decomposition pattern of the Ag-Fe bimetallic nanoparticles. The catalytic behavior of as-synthesized Ag-Fe nanoparticles was investigated for the catalytic degradation of 4-nitrophenol to 4-aminophenol. The observed results revealed that Ag-Fe nanoparticles showed an efficient reduction of 4-Nitrophenol (4-NP) to 4-Aminophemol (4-AP) after 45 min of treatment. (C) 2021 The Author(s). Published by Elsevier B.V.
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