Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal
In this study, the use of ultra-violet (UV) light with or without iron oxide nanoparticles (IONPs) for the degradation of synthetic petroleum wastewater was investigated. The IONPs was synthesised by sodium borohydride reduction of ferric chloride solution and was characterised by scanning electron...
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| author | Cecilia O. Akintayo Omolola H. Aremu Wilfred N. Igboama Simphiwe M. Nelana Olushola S. Ayanda |
| author_facet | Cecilia O. Akintayo Omolola H. Aremu Wilfred N. Igboama Simphiwe M. Nelana Olushola S. Ayanda |
| author_sort | Cecilia O. Akintayo |
| collection | DOAJ |
| description | In this study, the use of ultra-violet (UV) light with or without iron oxide nanoparticles (IONPs) for the degradation of synthetic petroleum wastewater was investigated. The IONPs was synthesised by sodium borohydride reduction of ferric chloride solution and was characterised by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FTIR), x-ray fluorescence spectrophotometry (XRF), and energy dispersive spectroscopy (EDS). The amount of degradation was evaluated by chemical oxygen demand (COD) determination. Experimental results show that the COD removal from synthetic petroleum wastewater by IONPs/UV system was more effective than they were independently. The combination of UV light at a wavelength of 254 nm, pH of 8, and 1.0 g of IONPs resulted in COD removal from 10.5% up to 95.5%. The photocatalytic degradation of synthetic petroleum wastewater is about 1.3–2.0 times faster in comparison to UV light only. The removal of COD from synthetic petroleum wastewater by UV light and IONPs follows the pseudo-first-order kinetic model with rate constant <i>k</i> ranging from 0.0133 min<sup>−1</sup> to 0.0269 min<sup>−1</sup>. Consequently, this study has shown that the use of UV light in the presence of IONPs is favourable and effective for the removal of organic pollutants from petroleum refinery wastewater. |
| first_indexed | 2024-03-10T08:08:22Z |
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| id | doaj.art-f57f9633c60e4a6d8d85e912d8fd5059 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T08:08:22Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-f57f9633c60e4a6d8d85e912d8fd50592023-11-22T10:54:58ZengMDPI AGMaterials1996-19442021-09-011417501210.3390/ma14175012Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD RemovalCecilia O. Akintayo0Omolola H. Aremu1Wilfred N. Igboama2Simphiwe M. Nelana3Olushola S. Ayanda4Nanoscience Research Unit, Department of Industrial Chemistry, Federal University Oye Ekiti, P.M.B 373, Oye Ekiti 362001, NigeriaNanoscience Research Unit, Department of Industrial Chemistry, Federal University Oye Ekiti, P.M.B 373, Oye Ekiti 362001, NigeriaDepartment of Physics, Federal University Oye Ekiti, P.M.B 373, Oye Ekiti 362001, NigeriaDepartment of Chemistry, Vaal University of Technology, Vanderbijlpark 1900, South AfricaNanoscience Research Unit, Department of Industrial Chemistry, Federal University Oye Ekiti, P.M.B 373, Oye Ekiti 362001, NigeriaIn this study, the use of ultra-violet (UV) light with or without iron oxide nanoparticles (IONPs) for the degradation of synthetic petroleum wastewater was investigated. The IONPs was synthesised by sodium borohydride reduction of ferric chloride solution and was characterised by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FTIR), x-ray fluorescence spectrophotometry (XRF), and energy dispersive spectroscopy (EDS). The amount of degradation was evaluated by chemical oxygen demand (COD) determination. Experimental results show that the COD removal from synthetic petroleum wastewater by IONPs/UV system was more effective than they were independently. The combination of UV light at a wavelength of 254 nm, pH of 8, and 1.0 g of IONPs resulted in COD removal from 10.5% up to 95.5%. The photocatalytic degradation of synthetic petroleum wastewater is about 1.3–2.0 times faster in comparison to UV light only. The removal of COD from synthetic petroleum wastewater by UV light and IONPs follows the pseudo-first-order kinetic model with rate constant <i>k</i> ranging from 0.0133 min<sup>−1</sup> to 0.0269 min<sup>−1</sup>. Consequently, this study has shown that the use of UV light in the presence of IONPs is favourable and effective for the removal of organic pollutants from petroleum refinery wastewater.https://www.mdpi.com/1996-1944/14/17/5012chemical oxygen demandiron oxide nanoparticlesultra-violet lightphotocatalysisrefinery wastewater |
| spellingShingle | Cecilia O. Akintayo Omolola H. Aremu Wilfred N. Igboama Simphiwe M. Nelana Olushola S. Ayanda Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal Materials chemical oxygen demand iron oxide nanoparticles ultra-violet light photocatalysis refinery wastewater |
| title | Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal |
| title_full | Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal |
| title_fullStr | Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal |
| title_full_unstemmed | Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal |
| title_short | Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal |
| title_sort | performance evaluation of ultra violet light and iron oxide nanoparticles for the treatment of synthetic petroleum wastewater kinetics of cod removal |
| topic | chemical oxygen demand iron oxide nanoparticles ultra-violet light photocatalysis refinery wastewater |
| url | https://www.mdpi.com/1996-1944/14/17/5012 |
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