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
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.
2
 

Title

JOMJ, The Journal of The Minerals, Metals & Materials Society (TMS)

Publisher

Springer: The Minerals, Metals & Materials Society (TMS)

Publisher Country

United States of America

Indexing

Thomson Reuters

Impact Factor

2.471

Publication Type

Both (Printed and Online)

Volume

73

Year

2021

Pages

404–410