Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics
Abstract In the last decades, titania (or TiO2) particles played a crucial role in the development of photo-catalysis and better environmentally-friendly energy-harvesting techniques. In this work, we engineer a new generation of TiO2 particles rich in oxygen vacancies using a modified sol–gel synth...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-19824-y |
| _version_ | 1797994894361362432 |
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| author | Jaime A. Benavides-Guerrero Luis Felipe Gerlein Charles Trudeau Debika Banerjee Xiaohang Guo Sylvain G. Cloutier |
| author_facet | Jaime A. Benavides-Guerrero Luis Felipe Gerlein Charles Trudeau Debika Banerjee Xiaohang Guo Sylvain G. Cloutier |
| author_sort | Jaime A. Benavides-Guerrero |
| collection | DOAJ |
| description | Abstract In the last decades, titania (or TiO2) particles played a crucial role in the development of photo-catalysis and better environmentally-friendly energy-harvesting techniques. In this work, we engineer a new generation of TiO2 particles rich in oxygen vacancies using a modified sol–gel synthesis. By design, these vacancy-rich particles efficiently absorb visible light to allow carefully-controlled light-induced conversion to the anatase or rutile crystalline phases. FTIR and micro-Raman spectroscopy reveal the formation of oxygen vacancies during conversion and explain this unique laser-assisted crystallization mechanism. We achieve low-energy laser-assisted crystallization in ambient environment using a modified filament 3D printer equipped with a low-power laser printhead. Since the established high-temperature treatment necessary to convert to crystalline TiO2 is ill-suited to additive manufacturing platforms, this work removes a major fundamental hurdle and opens whole new vistas of possibilities towards the additive manufacturing of ceramics, including carefully-engineered crystalline TiO2 substrates with potential applications for new and better photo-catalysis, fuel cells and energy-harvesting technologies. |
| first_indexed | 2024-04-11T09:53:03Z |
| format | Article |
| id | doaj.art-640a887d42094024815d772d5852deae |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T09:53:03Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-640a887d42094024815d772d5852deae2022-12-22T04:30:45ZengNature PortfolioScientific Reports2045-23222022-09-0112111110.1038/s41598-022-19824-ySynthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramicsJaime A. Benavides-Guerrero0Luis Felipe Gerlein1Charles Trudeau2Debika Banerjee3Xiaohang Guo4Sylvain G. Cloutier5Department of Electrical Engineering, Ecole de Technologie SuperieureDepartment of Electrical Engineering, Ecole de Technologie SuperieureDepartment of Electrical Engineering, Ecole de Technologie SuperieureDepartment of Electrical Engineering, Ecole de Technologie SuperieureDepartment of Electrical Engineering, Ecole de Technologie SuperieureDepartment of Electrical Engineering, Ecole de Technologie SuperieureAbstract In the last decades, titania (or TiO2) particles played a crucial role in the development of photo-catalysis and better environmentally-friendly energy-harvesting techniques. In this work, we engineer a new generation of TiO2 particles rich in oxygen vacancies using a modified sol–gel synthesis. By design, these vacancy-rich particles efficiently absorb visible light to allow carefully-controlled light-induced conversion to the anatase or rutile crystalline phases. FTIR and micro-Raman spectroscopy reveal the formation of oxygen vacancies during conversion and explain this unique laser-assisted crystallization mechanism. We achieve low-energy laser-assisted crystallization in ambient environment using a modified filament 3D printer equipped with a low-power laser printhead. Since the established high-temperature treatment necessary to convert to crystalline TiO2 is ill-suited to additive manufacturing platforms, this work removes a major fundamental hurdle and opens whole new vistas of possibilities towards the additive manufacturing of ceramics, including carefully-engineered crystalline TiO2 substrates with potential applications for new and better photo-catalysis, fuel cells and energy-harvesting technologies.https://doi.org/10.1038/s41598-022-19824-y |
| spellingShingle | Jaime A. Benavides-Guerrero Luis Felipe Gerlein Charles Trudeau Debika Banerjee Xiaohang Guo Sylvain G. Cloutier Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics Scientific Reports |
| title | Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics |
| title_full | Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics |
| title_fullStr | Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics |
| title_full_unstemmed | Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics |
| title_short | Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics |
| title_sort | synthesis of vacancy rich titania particles suitable for the additive manufacturing of ceramics |
| url | https://doi.org/10.1038/s41598-022-19824-y |
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