Published in Issue 2015-08-29
How to Cite
Ganapuram, B. R., Alle, M., Dadigala, R., Dasari, A., Maragoni, V., & Guttena, V. (2015). Catalytic reduction of methylene blue and Congo red dyes using green synthesized gold nanoparticles capped by salmalia malabarica gum. International Nano Letters, 5(4 (December 2015). https://doi.org/10.1007/s40089-015-0158-3
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Abstract
Abstract 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.Keywords
- Gold nanoparticles,
- Salmalia malabarica gum,
- Methylene blue,
- Congo red
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10.1007/s40089-015-0158-3