I am trying to synthesize copper nanoparticles i used ascorbic acid as reducing agent in the light of attached file any one guide me how to optimized?

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Muhammad Ismail Popular answer

Cu colloids show absorption band from 585-600 nm.

References

1. M. Valodkar et al. (2012), “Cytotoxicity evaluation and antimicrobial studies of starch capped water soluble copper nanoparticles”, Journal of Hazardous Materials, 201-202, 244.

2. M. Raja, J. Subha, F.B. Ali, and S.H. Ryu. (2008), “Synthesis of Copper Nanoparticles by Electroreduction Process”, Materials and Manufacturing Processes, 23, 782.

Ayesha Urooj

what is the exact wavelength of copper nanoparticles?

Muhammad Ismail

Your spectra are good. select the reaction showing highest absorption near 600 nm.

As you said the copper colloids show absorption band between 585-600 but my spectra was above 600 nm .

Dear check the attached file. I think it will clear you the situation.

Your spectra indicate Cu NPs.

thank you so much Ismail for your guidance

Welcome dear