Photocatalytic Degradation of Malachite Green Dye by Plant-mediated Biosynthesized Zinc Oxide Nanoparticles

Photocatalytic activity of ZnO-NPs was tested by degradation of Malachite Green dye under UV light irradiation. The ZnO-NPs were biosynthesized using Punica granatum (pomegranate) fruit peels extract as the stabilizing agent. Simple sol-gel method and calcination in different temperatures (400, 500,...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-03, Vol.808 (1), p.12034
Main Authors: Sukri, S N A M, Isa, E D M, Shameli, K
Format: Article
Language:English
Subjects:
Catalytic activity
Dyes
Light irradiation
Malachite green
Nanoparticles
Photocatalysis
Photodegradation
Roasting
Sol-gel processes
Stabilizers (agents)
Ultraviolet radiation
Wastewater treatment
Zinc oxide
Zinc oxides
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Summary:Photocatalytic activity of ZnO-NPs was tested by degradation of Malachite Green dye under UV light irradiation. The ZnO-NPs were biosynthesized using Punica granatum (pomegranate) fruit peels extract as the stabilizing agent. Simple sol-gel method and calcination in different temperatures (400, 500, 600 and 700°C) were carried out to obtain pure ZnO-NPs with high photocatalytic properties. In the degradation studies, 20 mg ZnO-NPs were used to degrade Malachite Green dye of 10 ppm initial concentration for a total period of 50 minutes in a 100 ml reaction volume. Results obtained shown that ZnO-NPs calcined in 700°C had the highest removal efficiency at about 99% in 40 minutes. This proves that biosynthesized ZnO-NPs have a high potential to be used as a photocatalyst to degrade textile dyes in a short time for wastewater treatments.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/808/1/012034