Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye
This work describes a novel approach for water treatment by photoelectrocatalysis, based on nanostructured TiO₂. The decolorization of aqueous solutions containing the azo-dye RR243 is carried out in a tubular photocatalytic reactor working in semi-batch mode under electrical polarization of the cat...
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| Veröffentlicht in: | Химия и технология воды |
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| Datum: | 2015 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
2015
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/132592 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye / S. Franz, D. Perego, O. Marchese, M. Bestetti // Химия и технология воды. — 2015. — Т. 37, № 3. — С. 207-219. — Бібліогр.: 22 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862736101997805568 |
|---|---|
| author | Franz, S. Perego, D. Marchese, O. Bestetti, M. |
| author_facet | Franz, S. Perego, D. Marchese, O. Bestetti, M. |
| citation_txt | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye / S. Franz, D. Perego, O. Marchese, M. Bestetti // Химия и технология воды. — 2015. — Т. 37, № 3. — С. 207-219. — Бібліогр.: 22 назв. — англ. |
| collection | DSpace DC |
| container_title | Химия и технология воды |
| description | This work describes a novel approach for water treatment by photoelectrocatalysis, based on nanostructured TiO₂. The decolorization of aqueous solutions containing the azo-dye RR243 is carried out in a tubular photocatalytic reactor working in semi-batch mode under electrical polarization of the catalyst. Two different nanostructured catalysts were tested: nanotubular TiO₂ obtained by conventional anodization (CA), and a novel photoactive nanoporous TiO₂, obtained by plasma electrolytic oxidation (PEO). Neither UV irradiation of the TiO₂ catalysts nor the electrical bias individually considered lead to a significant reduction of the dye concentration. By irradiating the catalysts with UVC light while applying an electrical bias to the same, the concentration of the dye decreased from 25 L to 2,5 mg/L using the nanotubular CA TiO₂ catalyst, and to less than 1,8 mg/L using the novel nanoporous PEO TiO₂ in 50 min. The main advantages of this method over current approaches for the degradation of pollutants are both the considerable processing time reduction and a suitable and easy-to-scale-up reactor design. A further advantage is the relatively easyness in the production of the TiO₂ catalysts by PEO.
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| first_indexed | 2025-12-07T19:52:43Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-132592 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0204-3556 |
| language | English |
| last_indexed | 2025-12-07T19:52:43Z |
| publishDate | 2015 |
| publisher | Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України |
| record_format | dspace |
| spelling | Franz, S. Perego, D. Marchese, O. Bestetti, M. 2018-04-21T20:44:44Z 2018-04-21T20:44:44Z 2015 Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye / S. Franz, D. Perego, O. Marchese, M. Bestetti // Химия и технология воды. — 2015. — Т. 37, № 3. — С. 207-219. — Бібліогр.: 22 назв. — англ. 0204-3556 https://nasplib.isofts.kiev.ua/handle/123456789/132592 This work describes a novel approach for water treatment by photoelectrocatalysis, based on nanostructured TiO₂. The decolorization of aqueous solutions containing the azo-dye RR243 is carried out in a tubular photocatalytic reactor working in semi-batch mode under electrical polarization of the catalyst. Two different nanostructured catalysts were tested: nanotubular TiO₂ obtained by conventional anodization (CA), and a novel photoactive nanoporous TiO₂, obtained by plasma electrolytic oxidation (PEO). Neither UV irradiation of the TiO₂ catalysts nor the electrical bias individually considered lead to a significant reduction of the dye concentration. By irradiating the catalysts with UVC light while applying an electrical bias to the same, the concentration of the dye decreased from 25 L to 2,5 mg/L using the nanotubular CA TiO₂ catalyst, and to less than 1,8 mg/L using the novel nanoporous PEO TiO₂ in 50 min. The main advantages of this method over current approaches for the degradation of pollutants are both the considerable processing time reduction and a suitable and easy-to-scale-up reactor design. A further advantage is the relatively easyness in the production of the TiO₂ catalysts by PEO. en Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України Химия и технология воды Физическая химия процессов обработки воды Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye Article published earlier |
| spellingShingle | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye Franz, S. Perego, D. Marchese, O. Bestetti, M. Физическая химия процессов обработки воды |
| title | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye |
| title_full | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye |
| title_fullStr | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye |
| title_full_unstemmed | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye |
| title_short | Photoelectrochemical advanced oxidation processes on nanostructured TiO₂ catalysts: decolorization of a textile azo-dye |
| title_sort | photoelectrochemical advanced oxidation processes on nanostructured tio₂ catalysts: decolorization of a textile azo-dye |
| topic | Физическая химия процессов обработки воды |
| topic_facet | Физическая химия процессов обработки воды |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/132592 |
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