ZnO-Based Catalyst for Photodegradation of 2-Chlorophenol in Aqueous Solution Under Simulated Solar Light Using a Continuous Flow Method

ZnO nanoparticles, stacked on the bottom of a glass dish, were used as a catalyst for the photodegradation of aqueous 2-chlorophenol (2-CP) contaminant. Solutions of 2-CP at different concentrations and pH values were passed over the ZnO film under simulated solar light. The effect of the light inte...

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Bibliographic Details
Published in:JOM (1989) 2021-01, Vol.73 (1), p.404-410
Main Authors: Zyoud, Ahed H., Salah, Hala, Zyoud, Shaher H., Zyoud, Samer H., Helal, Muath H., Qamhieh, Naser, Hajamohideen, Abdulrazack, Nassar, Heba, Hilal, Hikmat S.
Format: Article
Language:English
Subjects:
Aqueous solutions
Catalysts
Chemistry/Food Science
Contaminants
Continuous flow
Earth Sciences
Efficiency
Engineering
Environment
Experiments
High performance liquid chromatography
Laboratories
Light
Luminous intensity
Mathematical analysis
Membrane separation
Mineralization
Nanoparticles
Organic carbon
Organic contaminants
Ortho-chlorophenol
Oxidation
Photocatalysis
Photodegradation
Physics
Radiation
Scanning electron microscopy
Semiconductors
Spectrum analysis
Water treatment
Zinc oxide
Zinc Oxide Nanotechnology
Zinc oxides
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Summary:ZnO nanoparticles, stacked on the bottom of a glass dish, were used as a catalyst for the photodegradation of aqueous 2-chlorophenol (2-CP) contaminant. Solutions of 2-CP at different concentrations and pH values were passed over the ZnO film under simulated solar light. The effect of the light intensity on the contaminant photodegradation rate was investigated. The photodegradation efficiency was evaluated based on the percentage degradation, turnover number, turnover frequency, and quantum yield. The reaction efficiency parameters showed no significant variation when changing the pH across moderate values (neutral, slightly basic, and slightly acidic). Complete mineralization of the contaminant to CO 2 , H 2 O, and other minerals was confirmed by various analytical methods including high-performance liquid chromatography, ultraviolet–visible (UV–Vis) spectroscopy, and total organic carbon measurements. The continuous flow method applied in this work showed promising results in terms of safe removal of 2-CP from water at laboratory scale. More study of this method is needed to enable its use at larger, pilot plant scale.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-020-04478-w