Journal
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
Volume 236, Issue 9, Pages 1203-1217Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/zpch-2022-0024
Keywords
antibacterial; green synthesis; nanoparticles; photocatalysis; photocatalytic
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Funding
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2022R158]
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In this study, ZnO NPs were synthesized from Rumex dentatus plant using a biological method. The characteristics of the synthesized NPs, including absorption wavelength, shape, size, and composition, were analyzed using various techniques. The NPs were found to exhibit good antibacterial activity and photocatalytic degradation ability towards dyes.
In the present study, biological method was opted to synthesize ZnO NPs from Rumex dentatus plant. 0.1 M solution of zinc nitrate hexahydrate is mixed with the aqueous solution of R. dentatus plant leaves extract. The proportion of each solution was 1:1. Extract of plant leaves act as reducing agent. Firstly, the color changed from dark green to brown was observed and precipitates of light brown color appeared. Characterization of produced ZnO NPs was done using UV-Visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-rays (EDX) and X-ray diffraction (XRD) spectroscopy. The prepared ZnO NPS shows maximum absorption at 373 nm, in UV-Visible range. The shape of synthesized ZnO NPs is displayed by SEM. XRD analysis explains the average size of NPs is 6.19 nm. EDX tells about the percentage composition of synthesized ZnO NPs. Antibacterial analysis declared the NPs as good antibacterial agents. Photocatalytic activity of ZnO NPs was done using methyl orange dye. It was concluded that ZnO NPs can degrade toxic pollutants especially dyes.
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