Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology
Dye-containing wastewater generated from textile industries is a major source of environmental pollution. Azo dyes, which are the largest group of coloring agents, are widely used in industries.This research investigated the photocatalytic decolorization and degradation of an azo dye Reactive Red 19...
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| Format: | Article |
| Language: | English |
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Iranian Research Organization for Science and Technology (IROST)
2017-06-01
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| Series: | Advances in Environmental Technology |
| Subjects: | |
| Online Access: | http://aet.irost.ir/article_482_8b7bf476f5e0a93ed1e60f4521cc78fb.pdf |
| _version_ | 1818906265406930944 |
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| author | Farzaneh Asvadi Narges Fallah Shilan Elyasi Farnaz Mohseni |
| author_facet | Farzaneh Asvadi Narges Fallah Shilan Elyasi Farnaz Mohseni |
| author_sort | Farzaneh Asvadi |
| collection | DOAJ |
| description | Dye-containing wastewater generated from textile industries is a major source of environmental pollution. Azo dyes, which are the largest group of coloring agents, are widely used in industries.This research investigated the photocatalytic decolorization and degradation of an azo dye Reactive Red 198 (RR198) in aqueous solution with TiO2-P25 (Degussa) as photocatalyst in slurry form using UV light. There is a significant difference in adsorption of dye on TiO2 surface with the change in the solution pH. The effect of various parameters such as catalyst loading, pH and initial concentration of the dye on decolorization and degradation have been determined. The optimum conditions of the reactor were acquired at dye concentration = 62 ppm, pH = 3.7, catalyst concentration = 2.25 g.L-1, in which dye removal efficiency was 98%. Catalyst loading (relevant coefficient = 19.25) and pH (relevant coefficient = −2.62) were resulted respectively as the most and less effective parameters on dye removal |
| first_indexed | 2024-12-19T21:36:29Z |
| format | Article |
| id | doaj.art-fcf4fde218b9463192b7e0bc02308b49 |
| institution | Directory Open Access Journal |
| issn | 2476-6674 2476-4779 |
| language | English |
| last_indexed | 2024-12-19T21:36:29Z |
| publishDate | 2017-06-01 |
| publisher | Iranian Research Organization for Science and Technology (IROST) |
| record_format | Article |
| series | Advances in Environmental Technology |
| spelling | doaj.art-fcf4fde218b9463192b7e0bc02308b492022-12-21T20:04:46ZengIranian Research Organization for Science and Technology (IROST)Advances in Environmental Technology2476-66742476-47792017-06-012416917710.22104/aet.2017.482482Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodologyFarzaneh Asvadi0Narges Fallah1Shilan Elyasi2Farnaz Mohseni3Chemical Engineering Department, Amirkabir University of TechnologyAmirkabir university , chemical engineering departmentChemical Engineering Department, Amirkabir University of TechnologyChemical Engineering Department, payeme-noor university of Shahre-kordDye-containing wastewater generated from textile industries is a major source of environmental pollution. Azo dyes, which are the largest group of coloring agents, are widely used in industries.This research investigated the photocatalytic decolorization and degradation of an azo dye Reactive Red 198 (RR198) in aqueous solution with TiO2-P25 (Degussa) as photocatalyst in slurry form using UV light. There is a significant difference in adsorption of dye on TiO2 surface with the change in the solution pH. The effect of various parameters such as catalyst loading, pH and initial concentration of the dye on decolorization and degradation have been determined. The optimum conditions of the reactor were acquired at dye concentration = 62 ppm, pH = 3.7, catalyst concentration = 2.25 g.L-1, in which dye removal efficiency was 98%. Catalyst loading (relevant coefficient = 19.25) and pH (relevant coefficient = −2.62) were resulted respectively as the most and less effective parameters on dye removalhttp://aet.irost.ir/article_482_8b7bf476f5e0a93ed1e60f4521cc78fb.pdfphotocatalytic degradationazo dyesreactive red 198tio2uv-light |
| spellingShingle | Farzaneh Asvadi Narges Fallah Shilan Elyasi Farnaz Mohseni Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology Advances in Environmental Technology photocatalytic degradation azo dyes reactive red 198 tio2 uv-light |
| title | Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology |
| title_full | Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology |
| title_fullStr | Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology |
| title_full_unstemmed | Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology |
| title_short | Investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with TiO2: optimization through response surface methodology |
| title_sort | investigation of affecting operational parameters in photocatalytic degradation of reactive red 198 with tio2 optimization through response surface methodology |
| topic | photocatalytic degradation azo dyes reactive red 198 tio2 uv-light |
| url | http://aet.irost.ir/article_482_8b7bf476f5e0a93ed1e60f4521cc78fb.pdf |
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