Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process
Increasing use of pesticides along with an inadequate discharging of agricultural effluents has polluted water resources and severely affected the environment. 2,4-dichlorophenoxyacetic acid (2,4-D) is one of the herbicides which is widely used all over the world. The aim of this study was to evalua...
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| Format: | Article |
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Alborz University of Medical Sciences
2021-09-01
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| Series: | Muhandisī-i Bihdāsht-i Muḥīṭ |
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| Online Access: | http://jehe.abzums.ac.ir/article-1-872-en.html |
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| author | Hassan Pourmoslemi Mahdi Farzadkia Roshanak Rezaei Mojtaba yegane Mahdi Hoseini Mitra Gholami |
| author_facet | Hassan Pourmoslemi Mahdi Farzadkia Roshanak Rezaei Mojtaba yegane Mahdi Hoseini Mitra Gholami |
| author_sort | Hassan Pourmoslemi |
| collection | DOAJ |
| description | Increasing use of pesticides along with an inadequate discharging of agricultural effluents has polluted water resources and severely affected the environment. 2,4-dichlorophenoxyacetic acid (2,4-D) is one of the herbicides which is widely used all over the world. The aim of this study was to evaluate the efficiency of an electro-photo catalytic process for the removal of the 2,4-D from aqueous media. In this regard, Zn-doped Ni anode was stabilized on FTO surface by sputtering method.
Materials and methods: In the present study, the effects of different variables on the efficiency of the electro-photo catalytic process such as pH (3, 5, 7, 9, and 11), electricity current (1-2 mA/cm2), electrode surface area (16-32 cm2), initial concentration of 2,4-D (10-50 mg/L) and retention time (0-90 min) were investigated in a batch model and on a laboratory scale. Besides, mineralization and kinetics of the process under the optimal conditions were studied. The residual concentration of 2,4-D was measured by HPLC at 283 nm.
Results: The results showed that the highest removal efficiency of 2,4-D was obtained under the following conditions: pH=7, electricity current=2 mA/cm2, electrode surface area=32 cm2, initial concentration=10 mg/L and retention time=90 min. Under the optimal conditions, the maximum removal efficiency (i.e., 100%) and TOC of 79.5% were achieved. In addition, the kinetic studies revealed that the current process followed the first-kinetic-order model.
Conclusion: According to the obtained results, the applied electro-photo catalytic process can be considered as a suitable method for the removal of 2,4-D in aqueous solutions. |
| first_indexed | 2024-12-14T08:35:16Z |
| format | Article |
| id | doaj.art-5a7586c899404f9ba3781add658130be |
| institution | Directory Open Access Journal |
| issn | 2383-3211 |
| language | fas |
| last_indexed | 2024-12-14T08:35:16Z |
| publishDate | 2021-09-01 |
| publisher | Alborz University of Medical Sciences |
| record_format | Article |
| series | Muhandisī-i Bihdāsht-i Muḥīṭ |
| spelling | doaj.art-5a7586c899404f9ba3781add658130be2022-12-21T23:09:25ZfasAlborz University of Medical SciencesMuhandisī-i Bihdāsht-i Muḥīṭ2383-32112021-09-0184358374Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic ProcessHassan Pourmoslemi0Mahdi Farzadkia1Roshanak Rezaei2Mojtaba yegane3Mahdi Hoseini4Mitra Gholami5 Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran -Department of Environmental Health Engineering, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran Increasing use of pesticides along with an inadequate discharging of agricultural effluents has polluted water resources and severely affected the environment. 2,4-dichlorophenoxyacetic acid (2,4-D) is one of the herbicides which is widely used all over the world. The aim of this study was to evaluate the efficiency of an electro-photo catalytic process for the removal of the 2,4-D from aqueous media. In this regard, Zn-doped Ni anode was stabilized on FTO surface by sputtering method. Materials and methods: In the present study, the effects of different variables on the efficiency of the electro-photo catalytic process such as pH (3, 5, 7, 9, and 11), electricity current (1-2 mA/cm2), electrode surface area (16-32 cm2), initial concentration of 2,4-D (10-50 mg/L) and retention time (0-90 min) were investigated in a batch model and on a laboratory scale. Besides, mineralization and kinetics of the process under the optimal conditions were studied. The residual concentration of 2,4-D was measured by HPLC at 283 nm. Results: The results showed that the highest removal efficiency of 2,4-D was obtained under the following conditions: pH=7, electricity current=2 mA/cm2, electrode surface area=32 cm2, initial concentration=10 mg/L and retention time=90 min. Under the optimal conditions, the maximum removal efficiency (i.e., 100%) and TOC of 79.5% were achieved. In addition, the kinetic studies revealed that the current process followed the first-kinetic-order model. Conclusion: According to the obtained results, the applied electro-photo catalytic process can be considered as a suitable method for the removal of 2,4-D in aqueous solutions.http://jehe.abzums.ac.ir/article-1-872-en.html24-dichlorophenoxyacetic acidelectro-photo catalytic processuv light. |
| spellingShingle | Hassan Pourmoslemi Mahdi Farzadkia Roshanak Rezaei Mojtaba yegane Mahdi Hoseini Mitra Gholami Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process Muhandisī-i Bihdāsht-i Muḥīṭ 2 4-dichlorophenoxyacetic acid electro-photo catalytic process uv light. |
| title | Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process |
| title_full | Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process |
| title_fullStr | Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process |
| title_full_unstemmed | Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process |
| title_short | Application of Ni-Doped ZnO Nanoparticles for the removal of 2,4-D Pesticide from aqueous Environment by Electro-photo catalytic Process |
| title_sort | application of ni doped zno nanoparticles for the removal of 2 4 d pesticide from aqueous environment by electro photo catalytic process |
| topic | 2 4-dichlorophenoxyacetic acid electro-photo catalytic process uv light. |
| url | http://jehe.abzums.ac.ir/article-1-872-en.html |
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