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Green methods of synthesis of nanoparticles have various advantages over chemical methods.Manganese oxide nanomaterials are biosynthesized from manganese (II) chloride using medicinal plant extracts Acalypha indica, Cassia occidentalis, Cleome viscosa, Euphorbia hirta and Ecbolium ligustrinum as reducing agents. The resulting nanoparticles are characterized using UV- Vis and FTIR. The UV- Vis absorbance peak from 265 – 269 nm indicates the formation of Manganese oxide nanoparticles. The FTIR results of all the samples confirm the formation of manganese oxide nanoparticles.

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