| Autor: |
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 |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Materials Research Express, Vol 7, Iss 1, p 015088 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2053-1591 |
| DOI: |
10.1088/2053-1591/ab6c20 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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