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VOL. 6, ISSUE 4 (2021)
ZnO nanoparticles via Tragia involucrata green synthesis: Optical property and photocatalytic application
Authors
Udhayan S, Udayakumar R, Gurusamy K
Abstract
In the present work, UV-DRS and PL experiments were used to investigate the optical properties of the ZnO NPs synthesized by Tragia involucrata leaf extract. UV-DRS analysis was carried out for various temperatures such as 400 oC, 450 oC and 500 oC. The reflectance edges for ZnO NPs were found to be 362 nm, 364 nm and 367 nm and the corresponding energy gap values were 3.38 eV, 3.36 eV and 3.34 eV. With excitation wavelength at 325 nm, the PL spectra of the biosynthesized ZnO nanoparticles revealed two distinct emission bands: one in the UV region at 394 nm and another in the visible region at 577 nm. The photocatalytic activity for Methyl Violet (MV) and Rhodamine B (RhB) indicated 98 % and 92 % degradation being accomplished in 60 minutes and 80 minutes, respectively.
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Pages:874-879
How to cite this article:
Udhayan S, Udayakumar R, Gurusamy K "ZnO nanoparticles via <em>Tragia involucrata</em> green synthesis: Optical property and photocatalytic application ". International Journal of Botany Studies, Vol 6, Issue 4, 2021, Pages 874-879
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