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Spectroscopic profile of Berberis balochistanica stem (BBS)- nickel oxide nanoparticles (NiONPs). (a) UV-Vis spectrum of BBS-NiONPs. The peak value at 305.00 nm specifies the absorption of metal ions. (b) FTIR profile of BBS-NiONPs. Peaks indicate the presence of different functional groups. (c) XRD spectrum of BBS-NiONPs.
