Green synthesis of gold nanoparticles using Citrus maxima peel extract and their catalytic/antibacterial activities

文献类型: 外文期刊

第一作者: Yuan, Chun-Gang

作者: Yuan, Chun-Gang;Huo, Can;Gui, Bing;Cao, Wei-Ping

作者机构:

关键词: gold;nanoparticles;nanofabrication;X-ray diffraction;ultraviolet spectra;visible spectra;transmission electron microscopy;Fourier transform infrared spectra;crystal structure;catalysis;antibacterial activity;nanobiotechnology;gold nanoparticles;Citrus maxima peel extract;UV-visible spectrum;X-ray diffraction;transmission electron microscope;Fourier-transform infrared spectroscopy;XRD analysis;faced centre cubic lattice;TEM images;catalytic activity;4-nitrophenol;4-aminophenol;antibacterial activity;gram negative bacterium;gram positive bacterium;Au

期刊名称:IET NANOBIOTECHNOLOGY ( 影响因子:1.847; 五年影响因子:2.256 )

ISSN: 1751-8741

年卷期: 2017 年 11 卷 5 期

页码:

收录情况: SCI

摘要: The peel of Citrus maxima (C. maxima) is the primary byproducts during the process of fruit or juice in food industries, and it was always considered as biomass waste for further treatments. In this study, the authors reported a simple and eco-friendly method to synthesise gold nanoparticles (AuNPs) using C. maxima peel extract as reducing and capping agents. The synthesised AuNPs were characterised by UV-visible spectrum, X-ray diffraction (XRD), transmission electron microscope (TEM) and Fourier-transform infrared spectroscopy (FTIR). The UV-visible spectrum of the AuNPs colloid showed a characteristic peak at 540 nm. The peaks of XRD analysis at (2 theta) 38.30 degrees, 44.28 degrees, 64.62 degrees, 77.57 degrees and 81.75 degrees were assigned to (111), (200), (220), (311) and (222) planes of the face-centered cubic (fcc) lattice of gold. The TEM images showed that AuNPs were nearly spherical in shape with the size of 8-25 nm. The FTIR spectrum revealed that some bioactive compounds capped the surface of synthesised AuNPs. The biosynthesised AuNPs performed strong catalytic activity in degradation of 4-nitrophenol to 4-aminophenol and good antibacterial activity against both gram negative (Escherichia coli) and gram positive (Staphylococcus aureus) bacterium. The synthesis procedure was proved simple, cost effective and environment friendly.

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