Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane
The influence of some operating parameters of an UV photocatalytic reactor with TiO<sub>2</sub>/stainless steel photocatalytic membrane on the photocatalytic oxidation of 2,4-dichlorophenol from aqueous solutions was studied in this paper. It was shown that the pH of the working solution...
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MDPI AG
2021-12-01
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| Online Access: | https://www.mdpi.com/2076-3417/11/24/11664 |
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| author | Liliana Bobirică Constantin Bobirică Giovanina Iuliana Lupu Cristina Orbeci |
| author_facet | Liliana Bobirică Constantin Bobirică Giovanina Iuliana Lupu Cristina Orbeci |
| author_sort | Liliana Bobirică |
| collection | DOAJ |
| description | The influence of some operating parameters of an UV photocatalytic reactor with TiO<sub>2</sub>/stainless steel photocatalytic membrane on the photocatalytic oxidation of 2,4-dichlorophenol from aqueous solutions was studied in this paper. It was shown that the pH of the working solution substantially influences the photocatalytic degradation of the organic substrate, with the degradation efficiency increasing with decreasing the pH of the working solution by a maximum corresponding to pH 3. The rate constant of the photocatalytic oxidation process is about twice as high at pH 3 comparative with pH 7 for the same initial concentration of the organic substrate. The molar ratio of hydrogen peroxide/organic substrate also influences the photocatalytic oxidation process of the organic substrate. The results obtained in this paper highlight the fact that a stoichiometric molar ratio is favorable for the photocatalytic degradation of 2,4-dichlorophenol. It has also been shown that the initial concentration of the organic substrate influences the rate of photocatalytic degradation. It appears that the rate of photocatalytic degradation decreases with the increasing of initial concentration of 2,4-dichlorophenol. |
| first_indexed | 2024-03-10T04:37:36Z |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:37:36Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-5b8b98ad7f9a46df8cd1f07770ee21f42023-11-23T03:36:25ZengMDPI AGApplied Sciences2076-34172021-12-0111241166410.3390/app112411664Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic MembraneLiliana Bobirică0Constantin Bobirică1Giovanina Iuliana Lupu2Cristina Orbeci3Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, RomaniaDepartment of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, RomaniaDepartment of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, RomaniaDepartment of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, RomaniaThe influence of some operating parameters of an UV photocatalytic reactor with TiO<sub>2</sub>/stainless steel photocatalytic membrane on the photocatalytic oxidation of 2,4-dichlorophenol from aqueous solutions was studied in this paper. It was shown that the pH of the working solution substantially influences the photocatalytic degradation of the organic substrate, with the degradation efficiency increasing with decreasing the pH of the working solution by a maximum corresponding to pH 3. The rate constant of the photocatalytic oxidation process is about twice as high at pH 3 comparative with pH 7 for the same initial concentration of the organic substrate. The molar ratio of hydrogen peroxide/organic substrate also influences the photocatalytic oxidation process of the organic substrate. The results obtained in this paper highlight the fact that a stoichiometric molar ratio is favorable for the photocatalytic degradation of 2,4-dichlorophenol. It has also been shown that the initial concentration of the organic substrate influences the rate of photocatalytic degradation. It appears that the rate of photocatalytic degradation decreases with the increasing of initial concentration of 2,4-dichlorophenol.https://www.mdpi.com/2076-3417/11/24/11664photocatalytic oxidationchlorophenolsphotocatalytic membranetitanium dioxide |
| spellingShingle | Liliana Bobirică Constantin Bobirică Giovanina Iuliana Lupu Cristina Orbeci Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane Applied Sciences photocatalytic oxidation chlorophenols photocatalytic membrane titanium dioxide |
| title | Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane |
| title_full | Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane |
| title_fullStr | Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane |
| title_full_unstemmed | Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane |
| title_short | Influence of Operating Parameters on Photocatalytic Oxidation of 2,4-Dichlorofenol in Aqueous Solution by TiO<sub>2</sub>/Stainless Steel Photocatalytic Membrane |
| title_sort | influence of operating parameters on photocatalytic oxidation of 2 4 dichlorofenol in aqueous solution by tio sub 2 sub stainless steel photocatalytic membrane |
| topic | photocatalytic oxidation chlorophenols photocatalytic membrane titanium dioxide |
| url | https://www.mdpi.com/2076-3417/11/24/11664 |
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