INVESTIGATING THE IMPLEMENTATION OF ZnO NANOPARTICLES AS A TUNABLE UV DETECTOR FOR DIFFERENT SKIN TYPES

Pegah Mosayebi (), Davoud Dorranian () and Kasra Behzad
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Pegah Mosayebi: Laser Lab, Plasma Physics Research Centre, Science and Research Branch, Islamic Azad University, Tehran, Iran
Davoud Dorranian: Laser Lab, Plasma Physics Research Centre, Science and Research Branch, Islamic Azad University, Tehran, Iran
Kasra Behzad: Department of Physics, Science Faculty, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran

Surface Review and Letters (SRL), 2018, vol. 25, issue 02, 1-6

Abstract: A facile chemical reduction method was used to synthesize ZnO nanoparticles (NPs) in ethylene glycol solvent at two different calcination temperatures. As a result of variation in the calcination temperature, ZnO NPs with two different sizes were achieved. The NPs were investigated for their structural and optical characteristics using X-ray diffraction and ultraviolet (UV)–Vis spectroscopy. The synthesized ZnO NPs exhibited a hexagonal structure with sizes of 46 and 65nm. The synthesized NPs were then used to investigate dye photocatalytic behavior of products as a tunable UV detector for different skin types. The dye degradation and decolorization of methylene blue in the presence of ZnO NP, following UV radiation as a function of time, were studied at different pH levels. The optical absorption spectra were then taken every 15min for all samples. The UV–Vis spectroscopy spectra revealed that optical absorption of solution was decreased upon UV exposure as a function of time. Photocatalytic reaction indicated that the dye degradation and decolorization rate were accelerated with the increase of pH level. Therefore, a tunable UV detector for different skin types could be engineered by varying the pH level of solution to avoid human skin burning.

Keywords: ZnO nanoparticle; dye degradation; UV–Vis spectroscopy; tunable UV detector (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X18500622

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