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Enhanced solar light photocatalytic performance of Fe-ZnO in the presence of H2O2, S2O82−, and HSO5− for degradation of chlorpyrifos from agricultural wastes: Toxicities investigation
Abstract
This study reported Fe doped zinc oxide (Fe-ZnO) synthesis to degrade chlorpyrifos (CPY), a highly toxic organophosphate pesticide and important sources of agricultural wastes. Fourier transform infrared, X-ray diffraction, scanning electron microscope, and energy-dispersive X-ray spectroscopic analyses showed successful formation of the Fe-ZnO with highly crystalline and amorphous nature. Water collected from agricultural wastes were treated with Fe-ZnO and the results showed 67% degradation of CPY by Fe-ZnO versus 39% by ZnO at 140 min treatment time. Detail mechanism involving reactive oxygen species production from solar light activated Fe-ZnO and their role in degradation of CPY was assessed. Use of H2O2, peroxydisulfate (S2O82−) and peroxymonosulfate (HSO5−) with Fe-ZnO under solar irradiation promoted removal of CPY. The peroxides yielded hydroxyl (radical dotOH) and sulfate radical (Image 1) under solar irradiation mediated by Fe-ZnO. Effects of several parameters including concentration of pollutant and oxidants, pH, co-existing ions, and presence of natural organic matter on CPY degradation were studied. Among peroxides, HSO5− revealed to provide better performance. The prepared Fe-ZnO showed high reusability and greater mineralization of CPY. The GC-MS analysis showed degradation of CPY resulted into several transformation products (TPs). Toxicity analysis of CPY as well as its TPs was performed and the formation of non-toxic acetate imply greater capability of the treatment technology.
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Authors (9)
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Noor S. Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan
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Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, P.O. Box 144534, Abu Dhabi, United Arab Emirates
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Murtaza Sayed
- Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
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Ayman A. Ghfar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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Javed Ali Khan
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
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Zia Ul Haq Khan
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan
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Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan
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Farrukh Jamil
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus Raiwind Road, Lahore, 54000, Pakistan
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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CHEMOSPHERE
no. 287,
ISSN: 0045-6535 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Shah N. S., Iqbal J., Sayed M., Ghfar A. A., Khan J. A., Khan Z. U. H., Murtaza B., Boczkaj G., Jamil F.: Enhanced solar light photocatalytic performance of Fe-ZnO in the presence of H2O2, S2O82−, and HSO5− for degradation of chlorpyrifos from agricultural wastes: Toxicities investigation// CHEMOSPHERE -Vol. 287,iss. Part 4 (2022), s.132331-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.chemosphere.2021.132331
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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