Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology
Phenol removal has recently become a topic of interest and debate among environmental scientists. In this research, the efficiency of Fe3O4@SiO2@TiO2 magnetic photocatalyst in phenol degradation was evaluated. Also, the effect of effective factors in the degradation of this pollutant was investigate...
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| Format: | Article |
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Water and Wastewater Consulting Engineers Research Development
2022-12-01
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| Series: | آب و فاضلاب |
| Subjects: | |
| Online Access: | https://www.wwjournal.ir/article_167408_515e80d5105b947ab8a93371a1206b67.pdf |
| _version_ | 1811154277379342336 |
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| author | Saeed Aghel Nader Bahramifar Habibollah Younesi Mahdi Tanha Ziyarati |
| author_facet | Saeed Aghel Nader Bahramifar Habibollah Younesi Mahdi Tanha Ziyarati |
| author_sort | Saeed Aghel |
| collection | DOAJ |
| description | Phenol removal has recently become a topic of interest and debate among environmental scientists. In this research, the efficiency of Fe3O4@SiO2@TiO2 magnetic photocatalyst in phenol degradation was evaluated. Also, the effect of effective factors in the degradation of this pollutant was investigated using the surface response methodology. In the present work, photodegradation of phenol in an aqueous solution was studied using Fe3O4@SiO2@TiO2 nanocomposite under ultraviolet. The as-synthesized materials were characterized by UV-Visible diffuse reflectance spectra, scanning electron microscope, Fourier transform infrared,X-ray diffraction, and vibrating sample magnetometer. Based on XRD and VSM, the Fe3O4@SiO2@TiO2 nanocomposite structure contained an anatase TiO2 phase and showed a superparamagnetic behavior (12.07 emu/g). Based on the DRS spectra and bandgap computation, the direct bandgap energy of Fe3O4@SiO2@TiO2 was 3.01 eV. Result of ANOVA showed that the effects of the main variables of photocatalyst concentration, UV light irradiation time and the square of photocatalyst concentration are significant in the model. Significant variables from the most significant to the least significant include: photocatalyst concentration>UV light irradiation time>square of photocatalyst concentration. The findings showed that Fe3O4@SiO2@TiO2 was recycled five times to attain 50% degradation of phenol and the photocatalytic activity did not decrease noticeably after five photocatalytic cycles. The Photocatalytic degradation of phenol was performed by the response surface methodology to study the influence of operational factors on the degradation process. Maximum removal of 55% phenol was obtained at a pH of 8, a photocatalyst dosage of 1.0 g/L, and a phenol concentration of 100 mg/L after 220 min UV irradiation time. Results showed that the Fe3O4@SiO2@TiO2 magnetic nanocomposite has suitable potential for treating phenolic wastewater. |
| first_indexed | 2024-04-10T04:14:02Z |
| format | Article |
| id | doaj.art-aa008a8ead894237b3507e3e3723e805 |
| institution | Directory Open Access Journal |
| issn | 1024-5936 2383-0905 |
| language | English |
| last_indexed | 2024-04-10T04:14:02Z |
| publishDate | 2022-12-01 |
| publisher | Water and Wastewater Consulting Engineers Research Development |
| record_format | Article |
| series | آب و فاضلاب |
| spelling | doaj.art-aa008a8ead894237b3507e3e3723e8052023-03-12T06:53:58ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052022-12-0133512514110.22093/wwj.2022.343394.3259167408Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface MethodologySaeed Aghel0Nader Bahramifar1Habibollah Younesi2Mahdi Tanha Ziyarati3PhD. Candidate, Dept. of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Nour, IranAssoc. prof., Dept. of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Nour, IranProf., Dept. of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Nour, IranPhD., Dept. of Environmental Protection, Pars Special Economic Energy Zone (PSEEZ), National Iranian Oil Company (NIOC), Assaluyeh, IranPhenol removal has recently become a topic of interest and debate among environmental scientists. In this research, the efficiency of Fe3O4@SiO2@TiO2 magnetic photocatalyst in phenol degradation was evaluated. Also, the effect of effective factors in the degradation of this pollutant was investigated using the surface response methodology. In the present work, photodegradation of phenol in an aqueous solution was studied using Fe3O4@SiO2@TiO2 nanocomposite under ultraviolet. The as-synthesized materials were characterized by UV-Visible diffuse reflectance spectra, scanning electron microscope, Fourier transform infrared,X-ray diffraction, and vibrating sample magnetometer. Based on XRD and VSM, the Fe3O4@SiO2@TiO2 nanocomposite structure contained an anatase TiO2 phase and showed a superparamagnetic behavior (12.07 emu/g). Based on the DRS spectra and bandgap computation, the direct bandgap energy of Fe3O4@SiO2@TiO2 was 3.01 eV. Result of ANOVA showed that the effects of the main variables of photocatalyst concentration, UV light irradiation time and the square of photocatalyst concentration are significant in the model. Significant variables from the most significant to the least significant include: photocatalyst concentration>UV light irradiation time>square of photocatalyst concentration. The findings showed that Fe3O4@SiO2@TiO2 was recycled five times to attain 50% degradation of phenol and the photocatalytic activity did not decrease noticeably after five photocatalytic cycles. The Photocatalytic degradation of phenol was performed by the response surface methodology to study the influence of operational factors on the degradation process. Maximum removal of 55% phenol was obtained at a pH of 8, a photocatalyst dosage of 1.0 g/L, and a phenol concentration of 100 mg/L after 220 min UV irradiation time. Results showed that the Fe3O4@SiO2@TiO2 magnetic nanocomposite has suitable potential for treating phenolic wastewater.https://www.wwjournal.ir/article_167408_515e80d5105b947ab8a93371a1206b67.pdfphotocatalyticphenolsurface methodology |
| spellingShingle | Saeed Aghel Nader Bahramifar Habibollah Younesi Mahdi Tanha Ziyarati Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology آب و فاضلاب photocatalytic phenol surface methodology |
| title | Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology |
| title_full | Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology |
| title_fullStr | Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology |
| title_full_unstemmed | Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology |
| title_short | Optimization of Photocatalytic Degradation of Phenol Via Fe3O4@SiO2@TiO2 Magnetic Nanocomposite by Response Surface Methodology |
| title_sort | optimization of photocatalytic degradation of phenol via fe3o4 sio2 tio2 magnetic nanocomposite by response surface methodology |
| topic | photocatalytic phenol surface methodology |
| url | https://www.wwjournal.ir/article_167408_515e80d5105b947ab8a93371a1206b67.pdf |
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