Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process
In this study, the decomposition of BTA was examined using a photocatalytic process (UV/Fe2O3@Alg-TiO2). The effects of various operational parameters such as the initial pH(3-7-10), catalyst dosage (0.05, 0.1, 0.15 g/L), BTA initial concentration (15–45 mg/L), UV intensity ( 2, 4, and 6 watts), and...
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Iranian Environmental Mutagen Society
2024-01-01
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| Series: | Journal of Water and Environmental Nanotechnology |
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| Online Access: | https://www.jwent.net/article_710764_ce1455c8fc771933998e16655a31a631.pdf |
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| author | Seyedeh Elahe Badiei Khairabadi Hasan Rahmani Mohammad Bagher Miranzadeh Rouhullah Dehghani Fatemeh Atoof |
| author_facet | Seyedeh Elahe Badiei Khairabadi Hasan Rahmani Mohammad Bagher Miranzadeh Rouhullah Dehghani Fatemeh Atoof |
| author_sort | Seyedeh Elahe Badiei Khairabadi |
| collection | DOAJ |
| description | In this study, the decomposition of BTA was examined using a photocatalytic process (UV/Fe2O3@Alg-TiO2). The effects of various operational parameters such as the initial pH(3-7-10), catalyst dosage (0.05, 0.1, 0.15 g/L), BTA initial concentration (15–45 mg/L), UV intensity ( 2, 4, and 6 watts), and detention time (15,30, and 45 minutes) on the decomposition of BTA in the reactor with Batch conditions and in deionized water, real wastewater (three different matrices saline water, and real raw wastewater after activated sludge and after stabilization ponds) were investigated. SEM, XRD, and FTIR determined the synthesized catalyst's specifications. The results showed that 73.5% of BTA and 30% TOC was removed during the UV/Fe2O3@Alg-TiO2 photocatalytic process at the optimal condition (BTA=30 mg/L, pH = 3, UV = 4 Watt and catalyst dosage = 0.15 g/L) in deionized water. Also, the efficiency of the process in removing contaminants from the Saline, real raw sewage after activated, and after activated sludge and stabilization ponds was 23%, 47%, and 51%, respectively. The results showed that the toxicity decreased in 200 minutes that if sufficient time is provided to complete the reaction toxicity can be reduced. The results related to the amount of electrical energy consumed showed that considering both the advantages of BTA removal efficiency and energy consumption, the best performance was obtained in optimum conditions. |
| format | Article |
| id | doaj-art-451b30e3b82a4df4b70128a1e1308879 |
| institution | Kabale University |
| issn | 2476-7204 2476-6615 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Iranian Environmental Mutagen Society |
| record_format | Article |
| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj-art-451b30e3b82a4df4b70128a1e13088792025-01-12T09:34:19ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152024-01-019111710.22090/jwent.2024.01.01710764Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 processSeyedeh Elahe Badiei Khairabadi0Hasan Rahmani1Mohammad Bagher Miranzadeh2Rouhullah Dehghani3Fatemeh Atoof4Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Science, Kashan, Isfahan, IranDepartment of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Science, Kashan, Isfahan, IranDepartment of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Science, Kashan, Isfahan, IranDepartment of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Science, Kashan, Isfahan, IranDepartment of Biostatistics, Faculty of Health, Kashan University of Medical Science, Kashan, Isfahan, IranIn this study, the decomposition of BTA was examined using a photocatalytic process (UV/Fe2O3@Alg-TiO2). The effects of various operational parameters such as the initial pH(3-7-10), catalyst dosage (0.05, 0.1, 0.15 g/L), BTA initial concentration (15–45 mg/L), UV intensity ( 2, 4, and 6 watts), and detention time (15,30, and 45 minutes) on the decomposition of BTA in the reactor with Batch conditions and in deionized water, real wastewater (three different matrices saline water, and real raw wastewater after activated sludge and after stabilization ponds) were investigated. SEM, XRD, and FTIR determined the synthesized catalyst's specifications. The results showed that 73.5% of BTA and 30% TOC was removed during the UV/Fe2O3@Alg-TiO2 photocatalytic process at the optimal condition (BTA=30 mg/L, pH = 3, UV = 4 Watt and catalyst dosage = 0.15 g/L) in deionized water. Also, the efficiency of the process in removing contaminants from the Saline, real raw sewage after activated, and after activated sludge and stabilization ponds was 23%, 47%, and 51%, respectively. The results showed that the toxicity decreased in 200 minutes that if sufficient time is provided to complete the reaction toxicity can be reduced. The results related to the amount of electrical energy consumed showed that considering both the advantages of BTA removal efficiency and energy consumption, the best performance was obtained in optimum conditions.https://www.jwent.net/article_710764_ce1455c8fc771933998e16655a31a631.pdfbenzotriazolecross-linked alginate polymerfe2o3 nanoparticlesphotocatalytic processtitanium dioxide nanoparticles |
| spellingShingle | Seyedeh Elahe Badiei Khairabadi Hasan Rahmani Mohammad Bagher Miranzadeh Rouhullah Dehghani Fatemeh Atoof Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process Journal of Water and Environmental Nanotechnology benzotriazole cross-linked alginate polymer fe2o3 nanoparticles photocatalytic process titanium dioxide nanoparticles |
| title | Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process |
| title_full | Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process |
| title_fullStr | Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process |
| title_full_unstemmed | Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process |
| title_short | Degradation of Benzotriazole from aqueous solutions: A synergistic effect of nano- Fe2O3@Alg-TiO2 on UV/Fe2O3@Alg-TiO2 process |
| title_sort | degradation of benzotriazole from aqueous solutions a synergistic effect of nano fe2o3 alg tio2 on uv fe2o3 alg tio2 process |
| topic | benzotriazole cross-linked alginate polymer fe2o3 nanoparticles photocatalytic process titanium dioxide nanoparticles |
| url | https://www.jwent.net/article_710764_ce1455c8fc771933998e16655a31a631.pdf |
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