Publicação
Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight
| Resumo: | Here, we present the development and performance of a nanocomposite photocatalyst based on titanium dioxide (TiO2) and reduced graphene oxide (rGO). The material was prepared using a direct sol-gel method, followed by hydrothermal treatment. Different experimental conditions, such as time and temperature during the synthesis, were investigated with the aim to optimize photocatalytic degradation. The influence of the preparation conditions on the physicochemical properties of the synthesized powders was established by different characterization methods such as Scanning Electron Microscopy (SEM), and Raman spectroscopy. The effectiveness of the synthesized photocatalysts was examined through the photodegradation of caffeine under simulated sunlight irradiation. The influence of synthesized parameters on the TiO2/rGO performance for the photodegradation of pharmaceutical caffeine was monitored by UV-Vis spectroscopy. The obtained results show that the photocatalytic properties of the prepared TiO2/rGO composites depend on different experimental parameters of their synthesis procedure, such as time and temperature. The TiO2/rGO_6/400 composite presents a very efficient photo-degradation of caffeine by simulated sunlight irradiation, resulting in an efficiency of 95% within 90 minutes. |
|---|---|
| Autores principais: | Kocijan, Martina |
| Outros Autores: | Curkovic, Lidija; Radosevic, Tina; Podlogar, Matejka |
| Assunto: | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | unknown |
| Instituição associada: | Universidade de Aveiro |
| Idioma: | inglês |
| Origem: | Nanomaterials Science & Engineering |
| _version_ | 1877776957934927872 |
|---|---|
| author | Kocijan, Martina |
| author2 | Curkovic, Lidija Radosevic, Tina Podlogar, Matejka |
| author2_role | author author author |
| author_facet | Kocijan, Martina Curkovic, Lidija Radosevic, Tina Podlogar, Matejka |
| author_role | author |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Kocijan, Martina\"},{\"Person.name\":\"Curkovic, Lidija\"},{\"Person.name\":\"Radosevic, Tina\"},{\"Person.name\":\"Podlogar, Matejka\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Kocijan, Martina Curkovic, Lidija Radosevic, Tina Podlogar, Matejka |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| datacite.titles.title.fl_str_mv | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| dc.creator.none.fl_str_mv | Kocijan, Martina Curkovic, Lidija Radosevic, Tina Podlogar, Matejka |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://doi.org/10.34624/nmse.v2i4.21063 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | UA Editora |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Nanomaterials Science & Engineering; Vol. 2 No. 4 (2020): Nanomaterials Science & Engineering; 162-169 Journal of Nanomaterials Science and Nanotechnology; Vol. 2 Núm. 4 (2020): Nanomaterials Science & Engineering; 162-169 Journal of Nanomaterials Science and Nanotechnology; Vol. 2 No 4 (2020): Nanomaterials Science & Engineering; 162-169 Nanomaterials Science & Engineering; Vol. 2 N.º 4 (2020): Nanomaterials Science & Engineering; 162-169 2184-7002 2184-7002 |
| dc.subject.none.fl_str_mv | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| dc.title.fl_str_mv | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Here, we present the development and performance of a nanocomposite photocatalyst based on titanium dioxide (TiO2) and reduced graphene oxide (rGO). The material was prepared using a direct sol-gel method, followed by hydrothermal treatment. Different experimental conditions, such as time and temperature during the synthesis, were investigated with the aim to optimize photocatalytic degradation. The influence of the preparation conditions on the physicochemical properties of the synthesized powders was established by different characterization methods such as Scanning Electron Microscopy (SEM), and Raman spectroscopy. The effectiveness of the synthesized photocatalysts was examined through the photodegradation of caffeine under simulated sunlight irradiation. The influence of synthesized parameters on the TiO2/rGO performance for the photodegradation of pharmaceutical caffeine was monitored by UV-Vis spectroscopy. The obtained results show that the photocatalytic properties of the prepared TiO2/rGO composites depend on different experimental parameters of their synthesis procedure, such as time and temperature. The TiO2/rGO_6/400 composite presents a very efficient photo-degradation of caffeine by simulated sunlight irradiation, resulting in an efficiency of 95% within 90 minutes. |
| dirty | 0 |
| eu_rights_str_mv | unknown |
| format | article |
| id | nmse_f05f47991d2ea4fc77c46cf7e950f1ce |
| identifier.doi.fl_str_mv | https://doi.org/10.34624/nmse.v2i4.21063 |
| inst_facet_str | urn:organizationAcronym:ua{{{_:::_}}}Universidade de Aveiro |
| instacron_str | ua |
| institution | Universidade de Aveiro |
| instname_str | Universidade de Aveiro |
| language | eng |
| network_acronym_str | nmse |
| network_name_str | Nanomaterials Science & Engineering |
| oai_identifier_str | oai:proa.ua.pt:article/21063 |
| organization_str_mv | urn:organizationAcronym:ua |
| person_str_mv | Kocijan, Martina Curkovic, Lidija Radosevic, Tina Podlogar, Matejka |
| publishDate | 2020 |
| publisher.none.fl_str_mv | UA Editora |
| repo_facet_str | urn:repositoryAcronym:nmse{{{_:::_}}}Nanomaterials Science & Engineering |
| reponame_str | Nanomaterials Science & Engineering |
| repository_id_str | urn:repositoryAcronym:nmse |
| service_str_mv | urn:repositoryAcronym:nmse |
| spelling | enPhotocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlightKocijan, MartinaCurkovic, LidijaRadosevic, TinaPodlogar, Matejkagraphene oxidephotocatalysisreduced graphene oxideTiO2/rGO compositesvisible irradiationCopyright (c) 2020 Nanomaterials Science & Engineeringhttp://purl.org/coar/access_right/c_abf2https://doi.org/10.34624/nmse.v2i4.21063DOIhttps://proa.ua.pt/index.php/nmse/article/view/21063URLHasVersionhttps://proa.ua.pt/index.php/nmse/article/view/21063/16882URLHasVersionhttps://doi.org/10.34624/nmse.v2i4.21063DOI2020-12-11enHere, we present the development and performance of a nanocomposite photocatalyst based on titanium dioxide (TiO2) and reduced graphene oxide (rGO). The material was prepared using a direct sol-gel method, followed by hydrothermal treatment. Different experimental conditions, such as time and temperature during the synthesis, were investigated with the aim to optimize photocatalytic degradation. The influence of the preparation conditions on the physicochemical properties of the synthesized powders was established by different characterization methods such as Scanning Electron Microscopy (SEM), and Raman spectroscopy. The effectiveness of the synthesized photocatalysts was examined through the photodegradation of caffeine under simulated sunlight irradiation. The influence of synthesized parameters on the TiO2/rGO performance for the photodegradation of pharmaceutical caffeine was monitored by UV-Vis spectroscopy. The obtained results show that the photocatalytic properties of the prepared TiO2/rGO composites depend on different experimental parameters of their synthesis procedure, such as time and temperature. The TiO2/rGO_6/400 composite presents a very efficient photo-degradation of caffeine by simulated sunlight irradiation, resulting in an efficiency of 95% within 90 minutes.UA Editoraapplication/pdfenNanomaterials Science & Engineering; Vol. 2 No. 4 (2020): Nanomaterials Science & Engineering; 162-169esJournal of Nanomaterials Science and Nanotechnology; Vol. 2 Núm. 4 (2020): Nanomaterials Science & Engineering; 162-169frJournal of Nanomaterials Science and Nanotechnology; Vol. 2 No 4 (2020): Nanomaterials Science & Engineering; 162-169ptNanomaterials Science & Engineering; Vol. 2 N.º 4 (2020): Nanomaterials Science & Engineering; 162-1692184-70022184-7002engjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight Kocijan, Martina graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| title | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| title_full | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| title_fullStr | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| title_full_unstemmed | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| title_short | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| title_sort | Photocatalytic degradation of organic pollutant using TiO2/rGO nanocomposites under simulated sunlight |
| topic | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| topic_facet | graphene oxide photocatalysis reduced graphene oxide TiO2/rGO composites visible irradiation |
| url | https://doi.org/10.34624/nmse.v2i4.21063 |
| visible | 1 |
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