Green synthesis of Bryophyllum pinnatum aqueous leaf extract mediated bio-molecule capped dilute ferromagnetic α-MnO2 nanoparticles

Green synthesis of Bryophyllum pinnatum aqueous leaf extract mediated bio-molecule capped dilute ferromagnetic α-MnO2 nanoparticles

Bio-molecule capped α -MnO _2 nanoparticles have been successfully synthesized from the reduction of KMnO _4 via a facile green synthesis route using an aqueous leaf extract of Bryophyllum pinnatum as a reducing and capping agent. The synthesized α -MnO _2 nanoparticles were characterized by x-ray d...

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Bibliographic Details
Main Authors: A K M Atique Ullah, Md Mahbubul Haque, Mahmuda Akter, A Hossain, A N Tamanna, Md Mottaleb Hosen, A K M Fazle Kibria, M N I Khan, M K A Khan
Format: Article
Language:English
Published: IOP Publishing 2020-01-01
Series:Materials Research Express
Subjects:
green synthesis
α-MnO2 nanoparticles
bio-molecule capped
ferromagnetic
Online Access:https://doi.org/10.1088/2053-1591/ab6c20
Description
Summary:Bio-molecule capped α -MnO _2 nanoparticles have been successfully synthesized from the reduction of KMnO _4 via a facile green synthesis route using an aqueous leaf extract of Bryophyllum pinnatum as a reducing and capping agent. The synthesized α -MnO _2 nanoparticles were characterized by x-ray diffraction (XRD), Fourier transform—infrared (FT-IR), energy dispersive x-ray (EDX), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetric (TG) and differential scanning calorimetry (DSC) techniques. Experimental results clearly demonstrate the successful synthesis of bio-molecule capped crystalline tetragonal α -MnO _2 nanoparticles with the size of 4–18 nm. The magnetic property of the product was evaluated using a vibrating sample magnetometer (VSM) and the result reveals that the presently synthesized bio-molecule capped α -MnO _2 nanoparticles exhibit ferromagnetic property at room temperature.
ISSN:2053-1591

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