Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst
Some medications in aquatic media pose a serious environmental risk. Sulfamethoxazole (SMX) is a member of the sulfonamide group. Photocatalysis offers a promising technique to degrade organic pollutants into environmentally friendly substances. This study examined the effect of operating conditions...
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| Format: | Article |
| Language: | English |
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Corporation of Research and Industrial Development
2023-06-01
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| Series: | Iraqi Journal of Industrial Research |
| Subjects: | |
| Online Access: | http://ijoir.gov.iq/ijoir/index.php/jou/article/view/314 |
| _version_ | 1797804639964364800 |
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| author | Faten Hameed Kamil Suondos K. A. Barno Firas Shems Amer Jihad Ammar S. Abbas |
| author_facet | Faten Hameed Kamil Suondos K. A. Barno Firas Shems Amer Jihad Ammar S. Abbas |
| author_sort | Faten Hameed Kamil |
| collection | DOAJ |
| description | Some medications in aquatic media pose a serious environmental risk. Sulfamethoxazole (SMX) is a member of the sulfonamide group. Photocatalysis offers a promising technique to degrade organic pollutants into environmentally friendly substances. This study examined the effect of operating conditions (pH, time, and temperature) of the ultraviolet (UV)/TiO2 photocatalytic process on the degradation of SMX in an aqueous solution. Decreasing the pH value positively affects SMX degradation, and better removal values were obtained at a pH equal to 4. The optimum operating conditions for complete degradation in a solution containing 500 mg/L of SMX, TiO2 0.5 mg/L irradiation time of 420 min, and pH 4. Under these conditions, Chemical Oxygen Demand (COD) removal was 62.6% at a temperature of 25 ℃. The effect of temperature was studied at three temperatures (25, 40, and 60 ℃) with pH 4. The elevation of temperature increased the COD removal rate to 99.62% at 60 ℃. Finally, the results of the reaction kinetics study showed that a first-order kinetics model described organic contamination removal data over time, and the obtained activation energy was 42.195 kJ/mol. |
| first_indexed | 2024-03-13T05:40:11Z |
| format | Article |
| id | doaj.art-01f0a82928794110ad517e21d2a4f9a6 |
| institution | Directory Open Access Journal |
| issn | 2788-712X |
| language | English |
| last_indexed | 2024-03-13T05:40:11Z |
| publishDate | 2023-06-01 |
| publisher | Corporation of Research and Industrial Development |
| record_format | Article |
| series | Iraqi Journal of Industrial Research |
| spelling | doaj.art-01f0a82928794110ad517e21d2a4f9a62023-06-14T03:30:38ZengCorporation of Research and Industrial DevelopmentIraqi Journal of Industrial Research2788-712X2023-06-01101263310.53523/ijoirVol10I1ID314314Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous CatalystFaten Hameed Kamil0Suondos K. A. Barno1Firas Shems2Amer Jihad3Ammar S. Abbas4Renewable Energy and Environment Research Center/ Corporation of Research and Industrial Development – IraqPresidency of the University of Baghdad, University of Baghdad – IraqRenewable Energy and Environment Research Center/ Corporation of Research and Industrial Development – IraqRenewable Energy and Environment Research Center/ Corporation of Research and Industrial Development – IraqChemical Engineering Department, College of Engineering, University of Baghdad – IraqSome medications in aquatic media pose a serious environmental risk. Sulfamethoxazole (SMX) is a member of the sulfonamide group. Photocatalysis offers a promising technique to degrade organic pollutants into environmentally friendly substances. This study examined the effect of operating conditions (pH, time, and temperature) of the ultraviolet (UV)/TiO2 photocatalytic process on the degradation of SMX in an aqueous solution. Decreasing the pH value positively affects SMX degradation, and better removal values were obtained at a pH equal to 4. The optimum operating conditions for complete degradation in a solution containing 500 mg/L of SMX, TiO2 0.5 mg/L irradiation time of 420 min, and pH 4. Under these conditions, Chemical Oxygen Demand (COD) removal was 62.6% at a temperature of 25 ℃. The effect of temperature was studied at three temperatures (25, 40, and 60 ℃) with pH 4. The elevation of temperature increased the COD removal rate to 99.62% at 60 ℃. Finally, the results of the reaction kinetics study showed that a first-order kinetics model described organic contamination removal data over time, and the obtained activation energy was 42.195 kJ/mol.http://ijoir.gov.iq/ijoir/index.php/jou/article/view/314photocatalyticantibioticsultravioletcod removal |
| spellingShingle | Faten Hameed Kamil Suondos K. A. Barno Firas Shems Amer Jihad Ammar S. Abbas Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst Iraqi Journal of Industrial Research photocatalytic antibiotics ultraviolet cod removal |
| title | Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst |
| title_full | Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst |
| title_fullStr | Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst |
| title_full_unstemmed | Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst |
| title_short | Photocatalytic Degradation of Sulfamethoxazole from a Synthetic Pharmaceutical Wastewater Using Titanium Dioxide (TiO2) Powder as a Suspended Heterogeneous Catalyst |
| title_sort | photocatalytic degradation of sulfamethoxazole from a synthetic pharmaceutical wastewater using titanium dioxide tio2 powder as a suspended heterogeneous catalyst |
| topic | photocatalytic antibiotics ultraviolet cod removal |
| url | http://ijoir.gov.iq/ijoir/index.php/jou/article/view/314 |
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