Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light
This study focus on modification of TiO2 with a mixture of SnO2 and CeO2 that can actively degrade methylene blue as industrial dye under visible light. The synthesis of mixed oxides SnO2/CeO2/TiO2 was carried out by the precipitation method which included dissolving the reactants using HNO3 and re-...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123023003808 |
| _version_ | 1827815418187743232 |
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| author | Rifa Aisyah Husna Suherman Taufik Abdillah Natsir |
| author_facet | Rifa Aisyah Husna Suherman Taufik Abdillah Natsir |
| author_sort | Rifa Aisyah Husna |
| collection | DOAJ |
| description | This study focus on modification of TiO2 with a mixture of SnO2 and CeO2 that can actively degrade methylene blue as industrial dye under visible light. The synthesis of mixed oxides SnO2/CeO2/TiO2 was carried out by the precipitation method which included dissolving the reactants using HNO3 and re-precipitation with NaOH solution. The precipitate was then dried and calcined at 650 °C. The calcined products were characterized by XRD, DRUV, FTIR, SEM-EDX, TEM, and photoluminescence spectroscopy. The addition of both SnO2 and CeO2 can decrease the bandgap of TiO2 and inhibit the recombination process. The results showed that the photodegradation of MB under visible light using mixed oxides SnO2/CeO2/TiO2 was higher than that of TiO2, SnO2, and CeO2. The preparation of mixed oxides SnO2/CeO2/TiO2 using Sn/Ce ratio of 1:1 showed the highest photodegradation of MB up to 87%. The optimum conditions for the photodegradation of 40 ppm of MB were obtained at pH 7, with 0.2 g of catalyst mass, and 120 min of reaction time. The photocatalytic mechanism of the SnO2/CeO2/TiO2 mixed oxides was obtained up to three runs without appreciable loss of activity and shows great potential to be an excellent candidate for environmental remediation. |
| first_indexed | 2024-03-11T23:59:52Z |
| format | Article |
| id | doaj.art-2ab4be1f828e4b08b0b8fd6ba58db406 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-03-11T23:59:52Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-2ab4be1f828e4b08b0b8fd6ba58db4062023-09-18T04:30:32ZengElsevierResults in Engineering2590-12302023-09-0119101253Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible lightRifa Aisyah Husna0 Suherman1Taufik Abdillah Natsir2Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, IndonesiaDepartment of Chemistry, Universitas Gadjah Mada, Yogyakarta, IndonesiaCorresponding author.; Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, IndonesiaThis study focus on modification of TiO2 with a mixture of SnO2 and CeO2 that can actively degrade methylene blue as industrial dye under visible light. The synthesis of mixed oxides SnO2/CeO2/TiO2 was carried out by the precipitation method which included dissolving the reactants using HNO3 and re-precipitation with NaOH solution. The precipitate was then dried and calcined at 650 °C. The calcined products were characterized by XRD, DRUV, FTIR, SEM-EDX, TEM, and photoluminescence spectroscopy. The addition of both SnO2 and CeO2 can decrease the bandgap of TiO2 and inhibit the recombination process. The results showed that the photodegradation of MB under visible light using mixed oxides SnO2/CeO2/TiO2 was higher than that of TiO2, SnO2, and CeO2. The preparation of mixed oxides SnO2/CeO2/TiO2 using Sn/Ce ratio of 1:1 showed the highest photodegradation of MB up to 87%. The optimum conditions for the photodegradation of 40 ppm of MB were obtained at pH 7, with 0.2 g of catalyst mass, and 120 min of reaction time. The photocatalytic mechanism of the SnO2/CeO2/TiO2 mixed oxides was obtained up to three runs without appreciable loss of activity and shows great potential to be an excellent candidate for environmental remediation.http://www.sciencedirect.com/science/article/pii/S2590123023003808Rare earth oxidePhotocatalystMethylene blueMixed oxideTiO2 |
| spellingShingle | Rifa Aisyah Husna Suherman Taufik Abdillah Natsir Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light Results in Engineering Rare earth oxide Photocatalyst Methylene blue Mixed oxide TiO2 |
| title | Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light |
| title_full | Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light |
| title_fullStr | Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light |
| title_full_unstemmed | Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light |
| title_short | Enhancing photocatalytic degradation of methylene blue by mixed oxides TiO2/SnO2/CeO2 under visible light |
| title_sort | enhancing photocatalytic degradation of methylene blue by mixed oxides tio2 sno2 ceo2 under visible light |
| topic | Rare earth oxide Photocatalyst Methylene blue Mixed oxide TiO2 |
| url | http://www.sciencedirect.com/science/article/pii/S2590123023003808 |
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