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International Journal of Photoenergy
Volume 2018, Article ID 5094741, 7 pages
Research Article

Inspired Preparation of Zinc Oxide Nanocatalyst and the Photocatalytic Activity in the Treatment of Methyl Orange Dye and Paraquat Herbicide

1Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
2Chemistry Department, Faculty of Science, University of Jeddah, P.O. Box 80327, Jeddah 23218, Saudi Arabia
3Physical Chemistry Department, National Research Centre, P.O. Box 12311, Cairo 12622, Egypt

Correspondence should be addressed to Laila M. Al-Harbi; as.ude.uak@ibrhlal

Received 13 February 2018; Revised 7 April 2018; Accepted 16 April 2018; Published 5 June 2018

Academic Editor: Jinn Kong Sheu

Copyright © 2018 Ghaida H. Munshi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


As the need to use green chemistry routes increases, environmentally friendly catalytic processes are a demand. One of the most important and abundant naturally occurring catalysts is chlorophyll. Chlorophyll is the first recognized catalyst; it is a reducing agent due to its electron-rich structure. The effects of spinach on the preparation of zinc oxide nanoparticles and the photocatalytic degradation of methyl orange and paraquat in sunlight and under a UV lamp and photocatalytic degradation in sunlight were studied. Different parameters of the catalytic preparation process and photocatalytic degradation process were studied. Characterization of differently prepared samples was carried out using different analytical techniques such as XRD, SEM, and EDX and finally the photocatalytic activity towards decomposition of methyl orange and paraquat.