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HomeMaterials Science ForumMaterials Science Forum Vol. 962Kinetics of Humic Acids Photodegradation in...

Kinetics of Humic Acids Photodegradation in Aqueous Solution Using TiO₂/ ZnO/Co Composite Photocatalyst

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Abstract:

Humic acid (HA) is a major component of natural organic substances and affects water quality, such as color, taste and odor. Therefore, removal of HA from surface water or wastewater is very important. In this paper, the photodegradation kinetics of these compounds using TiO₂/ZnO/Co composite photocatalyst under visible light irradiation was investigated. The progress of photocatalytic degradation of the HA has been observed by measuring the absorbance in UV-Visible spectrophotometer. The results reveal that the TiO₂/ZnO/Co composite photocatalyst exhibits much better photocatalytic activity than those of pure TiO₂ and TiO₂/ZnO on photodegradation of HA under visible light irradiation, with degradation rate constants were found 0.0163, 0.0079 and 0.0032 (min^-1), respectively.

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Periodical:

Materials Science Forum (Volume 962)

Pages:

117-121

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.962.117

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Online since:

July 2019

Authors:

Muhammad Ali Zulfikar*, Dira Irnameria, Muhamad Nasir

Keywords:

Humic Acid, Kinetics, Natural Organic Matter, Photocatalyst, Photodegradation

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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