期刊
INTERNATIONAL NANO LETTERS
卷 5, 期 4, 页码 215-222出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s40089-015-0158-3
关键词
Gold nanoparticles; Salmalia malabarica gum; Methylene bluc; Congo red
资金
- CSIR, New Delhi
Stable gold nanoparticles (AuNPs) were synthesized using salmalia malabarica gum as both reducing and capping agent. It is a simple and eco-friendly green synthesis. The successful formation of AuNPs was confirmed by UV-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction and transmission electron microscopy (TEM). The synthesized AuNPs were characterized by a peak at 520-535 nm in the UV-Vis spectrum. The X-ray diffraction studies indicated that the resulting AuNPs were highly crystalline with face-centred cubic geometry. TEM studies showed that the average particle size of the synthesized AuNPs was 12 +/- 2 nm. FTIR analysis revealed that -OH groups present in the gum matrix might be responsible for the reduction of Au+3 into AuNPs. The synthesized AuNPs exhibited good catalytic properties in the reduction of methylene blue and Congo red.
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