| Autor: |
Sadiq Hawezy, Hawar J., Sdiq, Kwestan Hasan, Qadr, Vyan Asaad, Anwer, Sewgil Saadulldeen, Salih, Shameran Jamal |
| Předmět: |
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| Zdroj: |
Indian Journal of Public Health Research & Development; Jul2020, Vol. 11 Issue 7, p1222-1228, 7p |
| Abstrakt: |
A promising avenue of research in materials science is to follow the strategies used by Mother-Nature to fabricate ornate hierarchical structures as exemplified by organisms such as diatoms, sponges and magnetotactic micro-algae. This paper focused on bio-synthesized magnetite nano-particles using ecofriendly method. Here, various microalgae have been used such as Spirulina sp. and Spirogyra sp. in order to produce magnetite nano-particles. The iron oxide nano-particles of average size~45 nm were obtained. Further, in this study different characterization technique’s applied to obtain the magnetic nano-particles, scanning electron microscopy (SEM), energy dispersive X-Ray spectroscopy (EDX) and fourier-transform infrared spectroscopy(FT-IR). Also, X-ray diffraction, techniques. Calculation to obtaining the crystallite size by Debye-Scherrer equation. Also, The band gap parameters of the magneto-nanooxide such as indirect and direct-band gap energie has been determined (Egopt = 1.87eV present sudy and Egopt = 4.3eV elsewhere). Finaly, the results of this paper clearly indicated that iron oxide-NPs spherical shaped and average size of particle is found to be below 100 nm. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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