Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite
In this work, hydrothermal technique and precursor materials obtained from the wastes of filtration unit of gas pressure reduction station were used to create ZnO-Fe2O3 nanocomposite. FT-IR, FE-SEM, XRD and TEM analyzes were used to investigate the properties of the produced nanocomposite. XRD analy...
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| Format: | Article |
| Language: | English |
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Iranian Environmental Mutagen Society
2023-02-01
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| Series: | Journal of Water and Environmental Nanotechnology |
| Subjects: | |
| Online Access: | http://www.jwent.net/article_702116_1e448c9cca49234aefe58546fa895a3a.pdf |
| _version_ | 1797836719435808768 |
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| author | Armin Ehsani Amoli Mojtaba Masoomi Mazyar Sharifzadeh baei Fatemeh Babei Ghasem Firouzzade pasha |
| author_facet | Armin Ehsani Amoli Mojtaba Masoomi Mazyar Sharifzadeh baei Fatemeh Babei Ghasem Firouzzade pasha |
| author_sort | Armin Ehsani Amoli |
| collection | DOAJ |
| description | In this work, hydrothermal technique and precursor materials obtained from the wastes of filtration unit of gas pressure reduction station were used to create ZnO-Fe2O3 nanocomposite. FT-IR, FE-SEM, XRD and TEM analyzes were used to investigate the properties of the produced nanocomposite. XRD analysis showed the structure of ZnO and Fe2O3 without impurities. The crystal size of ZnO-Fe2O3 nanocomposite was determined to be about 53 nm. FE-SEM images showed a nanocomposite pattern with an approximate diameter of 50 nm. Finally, visual decomposition of anionic and cationic dyes under visible light was used to study the photocatalytic activity of ZnO-Fe2O3 nanocomposite. By exposing a metal halide lamp to light and darkness for 60 minutes and 150 minutes, respectively, it was possible to study the photocatalytic activity of the synthesized nanocomposite in removing anionic and cationic dyes from aqueous medium. In the photocatalytic degradation of anionic and cationic dyes, the following factors were considered as essential variables: pH, initial dye concentration, nanocomposite content and exposure time. In this study, the degradation percentage of anionic and cationic dyes of ZnO-Fe2O3 nanocomposite with a ratio of 0.75:1 was 99.89 and 99.9%, respectively. The amount of band gap was calculated by Tack plot method and electrical conductivity was calculated using electrochemical impedance spectroscopy, which reduced the band gap. And the resistance increases. Due to the acceleration of charge transfer at the heterogeneous junction surface and the suppression of electron/hole pairs from recombination, the ZnO-Fe2O3 nanocomposite significantly increased the visible light current response. |
| first_indexed | 2024-04-09T15:14:31Z |
| format | Article |
| id | doaj.art-f2e296f6c11340648277040227d520b6 |
| institution | Directory Open Access Journal |
| issn | 2476-7204 2476-6615 |
| language | English |
| last_indexed | 2024-04-09T15:14:31Z |
| publishDate | 2023-02-01 |
| publisher | Iranian Environmental Mutagen Society |
| record_format | Article |
| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj.art-f2e296f6c11340648277040227d520b62023-04-30T07:04:45ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152023-02-0181526510.22090/jwent.2023.08.006702116Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocompositeArmin Ehsani Amoli0Mojtaba Masoomi1Mazyar Sharifzadeh baei2Fatemeh Babei3Ghasem Firouzzade pasha4Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, IranDepartment of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, IranDepartment of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, IranResearch and Development Center, Mazandaran Gas Company, Sari, IranDepartment of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, IranIn this work, hydrothermal technique and precursor materials obtained from the wastes of filtration unit of gas pressure reduction station were used to create ZnO-Fe2O3 nanocomposite. FT-IR, FE-SEM, XRD and TEM analyzes were used to investigate the properties of the produced nanocomposite. XRD analysis showed the structure of ZnO and Fe2O3 without impurities. The crystal size of ZnO-Fe2O3 nanocomposite was determined to be about 53 nm. FE-SEM images showed a nanocomposite pattern with an approximate diameter of 50 nm. Finally, visual decomposition of anionic and cationic dyes under visible light was used to study the photocatalytic activity of ZnO-Fe2O3 nanocomposite. By exposing a metal halide lamp to light and darkness for 60 minutes and 150 minutes, respectively, it was possible to study the photocatalytic activity of the synthesized nanocomposite in removing anionic and cationic dyes from aqueous medium. In the photocatalytic degradation of anionic and cationic dyes, the following factors were considered as essential variables: pH, initial dye concentration, nanocomposite content and exposure time. In this study, the degradation percentage of anionic and cationic dyes of ZnO-Fe2O3 nanocomposite with a ratio of 0.75:1 was 99.89 and 99.9%, respectively. The amount of band gap was calculated by Tack plot method and electrical conductivity was calculated using electrochemical impedance spectroscopy, which reduced the band gap. And the resistance increases. Due to the acceleration of charge transfer at the heterogeneous junction surface and the suppression of electron/hole pairs from recombination, the ZnO-Fe2O3 nanocomposite significantly increased the visible light current response.http://www.jwent.net/article_702116_1e448c9cca49234aefe58546fa895a3a.pdfdirect blue anionic dyebasic yellow cationic dyevisible lightphotocurrentzno-fe2o3 nanocomposite |
| spellingShingle | Armin Ehsani Amoli Mojtaba Masoomi Mazyar Sharifzadeh baei Fatemeh Babei Ghasem Firouzzade pasha Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite Journal of Water and Environmental Nanotechnology direct blue anionic dye basic yellow cationic dye visible light photocurrent zno-fe2o3 nanocomposite |
| title | Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite |
| title_full | Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite |
| title_fullStr | Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite |
| title_full_unstemmed | Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite |
| title_short | Visible light mediated photocatalytic anionic and cationic dyes degradation using ZnO-Fe2O3 nanocomposite |
| title_sort | visible light mediated photocatalytic anionic and cationic dyes degradation using zno fe2o3 nanocomposite |
| topic | direct blue anionic dye basic yellow cationic dye visible light photocurrent zno-fe2o3 nanocomposite |
| url | http://www.jwent.net/article_702116_1e448c9cca49234aefe58546fa895a3a.pdf |
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