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Synthesis and photocatalysis of ZnO/Fe2O3 nanocomposite in degrading herbicide 2,4-dichlorophenoxyacetic acid


Citation

Lee, Kian Mun and Abdullah, Abdul Halim and Hussein, Mohd. Zobir and Zainal, Zulkarnain (2014) Synthesis and photocatalysis of ZnO/Fe2O3 nanocomposite in degrading herbicide 2,4-dichlorophenoxyacetic acid. Sains Malaysiana, 43 (3). pp. 437-441. ISSN 0026-6039

Abstract

ZnO/γ-Fe2O3 catalysts were fabricated via a simple precipitation route using zinc acetate and iron acetate as the precursors and ammonia as the precipitant. The resulted nanocatalysts were subjected to heat treatment at 450°C for 2 h. The characteristics of the nanocomposite were investigated by various characterization techniques. The synthesized nanocomposite has an average particle size of 13 nm and a surface area of 17 m2/g. The photocatalytic activity of ZnO/γ-Fe2O3 nanocomposite was evaluated by photodegrading 2,4-dichlorophenoxyacetic acid (2,4-D) under UV irradiation. The results showed that ZnO/γ-Fe2O3 nanocomposite exhibited enhanced photoactivity compared to pure ZnO with almost 20% increment within 4 h of reaction time. The result indicated the applicability of ZnO/γ-Fe2O3 nanocomposite to be used as photocatalyst in removing organic pollutants in wastewater.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
Publisher: Universiti Kebangsaan Malaysia
Keywords: Photocatalytic degradation; Precipitation; Zinc oxide; 2,4-D
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 14 Jan 2016 00:16
Last Modified: 14 Jan 2016 00:16
URI: http://psasir.upm.edu.my/id/eprint/35570
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