Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors
Methylene blue was efficiently immobilized on silica micro- and nanoparticles by electrostatic interactions and the performances of the heterogenized photocatalysts were compared against the homogeneous conditions using the photooxidation of citronellol as a model reaction under red light, in a batc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-11-01
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| Series: | Frontiers in Chemical Engineering |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fceng.2021.752364/full |
| _version_ | 1818346644401291264 |
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| author | Maxime Lancel Catherine Gomez Marc Port Zacharias Amara |
| author_facet | Maxime Lancel Catherine Gomez Marc Port Zacharias Amara |
| author_sort | Maxime Lancel |
| collection | DOAJ |
| description | Methylene blue was efficiently immobilized on silica micro- and nanoparticles by electrostatic interactions and the performances of the heterogenized photocatalysts were compared against the homogeneous conditions using the photooxidation of citronellol as a model reaction under red light, in a batch and a continuous flow photochemical reactor. In batch, the heterogeneous photocatalyst outperforms the homogeneous one, presumably due to kinetic and stability effects. The two catalytic systems are also compared in a flow reactor displaying improved mass transfer properties. We demonstrate that this results in a dramatic enhancement in photocatalyst stability, reactivity and productivity. This study highlights the importance of photocatalyst stability under homogeneous versus heterogenized conditions and in batch versus flow photochemistry. |
| first_indexed | 2024-12-13T17:21:33Z |
| format | Article |
| id | doaj.art-b4f31711fbee47ed86e3d6d3f10dce23 |
| institution | Directory Open Access Journal |
| issn | 2673-2718 |
| language | English |
| last_indexed | 2024-12-13T17:21:33Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemical Engineering |
| spelling | doaj.art-b4f31711fbee47ed86e3d6d3f10dce232022-12-21T23:37:17ZengFrontiers Media S.A.Frontiers in Chemical Engineering2673-27182021-11-01310.3389/fceng.2021.752364752364Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical ReactorsMaxime LancelCatherine GomezMarc PortZacharias AmaraMethylene blue was efficiently immobilized on silica micro- and nanoparticles by electrostatic interactions and the performances of the heterogenized photocatalysts were compared against the homogeneous conditions using the photooxidation of citronellol as a model reaction under red light, in a batch and a continuous flow photochemical reactor. In batch, the heterogeneous photocatalyst outperforms the homogeneous one, presumably due to kinetic and stability effects. The two catalytic systems are also compared in a flow reactor displaying improved mass transfer properties. We demonstrate that this results in a dramatic enhancement in photocatalyst stability, reactivity and productivity. This study highlights the importance of photocatalyst stability under homogeneous versus heterogenized conditions and in batch versus flow photochemistry.https://www.frontiersin.org/articles/10.3389/fceng.2021.752364/fullphotochemistryflow chemistrygreen chemistryheterogeneous photocatalysiscatalysissinglet oxygen |
| spellingShingle | Maxime Lancel Catherine Gomez Marc Port Zacharias Amara Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors Frontiers in Chemical Engineering photochemistry flow chemistry green chemistry heterogeneous photocatalysis catalysis singlet oxygen |
| title | Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors |
| title_full | Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors |
| title_fullStr | Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors |
| title_full_unstemmed | Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors |
| title_short | Performances of Homogeneous and Heterogenized Methylene Blue on Silica Under Red Light in Batch and Continuous Flow Photochemical Reactors |
| title_sort | performances of homogeneous and heterogenized methylene blue on silica under red light in batch and continuous flow photochemical reactors |
| topic | photochemistry flow chemistry green chemistry heterogeneous photocatalysis catalysis singlet oxygen |
| url | https://www.frontiersin.org/articles/10.3389/fceng.2021.752364/full |
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