Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light
Solar-light-assisted photocatalytic activation of peroxymonosulfate (PMS) is an effective advanced oxidation method for degrading pollutants in water. In this study, several TiO2 supported on CuCo2O4 photocatalysts were successfully synthesized through simple hydrothermal and calcination method with...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universidad Autónoma de Madrid |
| Repository: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Language: | English |
| OAI Identifier: | oai:repositorio.uam.es:10486/704015 |
| Online Access: | http://hdl.handle.net/10486/704015 https://dx.doi.org/10.1016/j.jece.2022.108438 |
| Access Level: | Open access |
| Keyword: | CuCo O 2 4 Peroxymonosulfate Photocatalysis Sulfamethoxazole TiO 2 Water treatment Química |
| _version_ | 1878739747180904448 |
|---|---|
| author | Mertah, Oumaima |
| author2 | Gómez Avilés, Almudena Kherbeche, Abdelhak Belver Coldeira, Carolina Bedia García-Matamoros, Jorge |
| author2_role | author author author author |
| author_browse | Bedia García-Matamoros, Jorge Belver Coldeira, Carolina Gómez Avilés, Almudena Kherbeche, Abdelhak Mertah, Oumaima |
| author_facet | Mertah, Oumaima Gómez Avilés, Almudena Kherbeche, Abdelhak Belver Coldeira, Carolina Bedia García-Matamoros, Jorge |
| author_role | author |
| collection | Biblos-e Archivo. Repositorio Institucional de la UAM |
| description | Solar-light-assisted photocatalytic activation of peroxymonosulfate (PMS) is an effective advanced oxidation method for degrading pollutants in water. In this study, several TiO2 supported on CuCo2O4 photocatalysts were successfully synthesized through simple hydrothermal and calcination method with different ratios of TiO2. The synthesized materials were tested for photocatalytic degradation of sulfamethoxazole (SMX) enhanced by PMS activation. The TiO2@CuCo2O4 heterostructures showed a significantly higher photocatalytic degradation of SMX comparing with that of pure CuCo2O4. The TiO2@CuCo2O4 heterostructure with 20% of TiO2 (TO-20-CCO) achieved the highest SMX removal, due to the synergistic effect between CuCo2O4 and TiO2. Besides, the reaction mechanisms induced by TiO2@CuCo2O4/PMS system were examined using trapping tests, which showed that sulfate (SO4•-), hydroxyl (HO•) and superoxide (O2•-) radicals were the most involved in the degradation reaction. The photodegradation mechanism seems to be based in the formation of a n-n heterojunction. This work details an efficient strategy for the synthesis of heterostructured photocatalysts using PMS as activator to degrade the antibiotic residues present in wastewater using solar light irradiation |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_c73f5f4408f00a929fc36cddaa48082e |
| institution | Universidad Autónoma de Madrid |
| instname_str | Universidad Autónoma de Madrid |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:repositorio.uam.es:10486/704015 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | Biblos-e Archivo. Repositorio Institucional de la UAM |
| spelling | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light Mertah, Oumaima Gómez Avilés, Almudena Kherbeche, Abdelhak Belver Coldeira, Carolina Bedia García-Matamoros, Jorge CuCo O 2 4 Peroxymonosulfate Photocatalysis Sulfamethoxazole TiO 2 Water treatment Química Solar-light-assisted photocatalytic activation of peroxymonosulfate (PMS) is an effective advanced oxidation method for degrading pollutants in water. In this study, several TiO2 supported on CuCo2O4 photocatalysts were successfully synthesized through simple hydrothermal and calcination method with different ratios of TiO2. The synthesized materials were tested for photocatalytic degradation of sulfamethoxazole (SMX) enhanced by PMS activation. The TiO2@CuCo2O4 heterostructures showed a significantly higher photocatalytic degradation of SMX comparing with that of pure CuCo2O4. The TiO2@CuCo2O4 heterostructure with 20% of TiO2 (TO-20-CCO) achieved the highest SMX removal, due to the synergistic effect between CuCo2O4 and TiO2. Besides, the reaction mechanisms induced by TiO2@CuCo2O4/PMS system were examined using trapping tests, which showed that sulfate (SO4•-), hydroxyl (HO•) and superoxide (O2•-) radicals were the most involved in the degradation reaction. The photodegradation mechanism seems to be based in the formation of a n-n heterojunction. This work details an efficient strategy for the synthesis of heterostructured photocatalysts using PMS as activator to degrade the antibiotic residues present in wastewater using solar light irradiation This research was funded by the Spanish State Research Agency (PID2019–106186RB-I00/AEI/10.13039/501100011033, Spain) Elsevier http://hdl.handle.net/10486/704015 https://dx.doi.org/10.1016/j.jece.2022.108438 |
| spellingShingle | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light Mertah, Oumaima CuCo O 2 4 Peroxymonosulfate Photocatalysis Sulfamethoxazole TiO 2 Water treatment Química |
| title | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| title_full | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| title_fullStr | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| title_full_unstemmed | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| title_short | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| title_sort | Peroxymonosulfate enhanced photodegradation of sulfamethoxazole with TiO2@CuCo2O4 catalysts under simulated solar light |
| topic | CuCo O 2 4 Peroxymonosulfate Photocatalysis Sulfamethoxazole TiO 2 Water treatment Química |
| topic_facet | CuCo O 2 4 Peroxymonosulfate Photocatalysis Sulfamethoxazole TiO 2 Water treatment Química |
| url | http://hdl.handle.net/10486/704015 https://dx.doi.org/10.1016/j.jece.2022.108438 |