Green Synthesis and Characterization of Iron Nanoparticles






The purpose of this research project was to synthesis iron nanoparticles via a green synthesis approach. This involved the use of herbal tea extracts to reduce Iron (iii) chloride to Iron nanoparticles. The above synthesis employed the principle that the tea extracts contains the phenolic compounds that can act as reducing and capping agents in their application.


The herbal tea extracts used include green tea, chamomile tea, hibiscus tea and the normal table tea. Furthermore, in the preparation of the nanoparticles, different conditions of temperature of tea extraction, concentration of the salt used, the amount of the tea used and the length of the extraction time.


The prepared iron nanoparticles were characterized using Transmission electron microscopy-ray diffraction spectroscopy, Uv-Vis spectroscopy, pH, and the refractive index.


The transmission electron microscopy showed that the synthesized iron nanoparticles were about 50 nm. X-ray diffraction spectroscopy showed that the produced nanoparticles were amorphous since they did not show distinct absorption peaks. The uv-vis spectroscopy of the synthesized nanoparticles showed that the absorption of the synthesized nanoparticles increased with absorption temperature, extraction time and the reduction in the concentration of iron (III) chloride, and the increase in the amount of the tea used. The application of the refractive index in the characterization of the synthesized iron nanoparticles was not significant enough and further future research is recommended in this technique.

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