Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2
Considering CO2 as an alternative and sustainable resource, rather than as a waste to be treated, this work proposes the combination of doped TiO2 nanocrystals with optofluidics for the continuous photoreduction of CO2 to alcohols under ultraviolet and visible light. This approach aims at overcoming...
| Autores: | , , , , , , , , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2023 |
| País: | España |
| Recursos: | Universidad de Cantabria (UC) |
| Repositório: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglês |
| OAI Identifier: | oai:repositorio.unican.es:10902/30219 |
| Acesso em linha: | https://hdl.handle.net/10902/30219 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Artificial photosynthesis Alcohols Optofluidics TiO2 nanocrystals Visible light |
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ES_fedf4b1e1e2c080ebcd0f6ca64f4260e |
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| oai_identifier_str |
oai:repositorio.unican.es:10902/30219 |
| network_acronym_str |
ES |
| network_name_str |
España |
| spelling |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 Diego Rucabado, Andrea Merino García, Iván Espeso Martínez, José Ignacio|||0000-0002-4018-7186 González Gómez, Jesús Antonio|||0000-0002-0381-6393 Arce Pascual, Beatriz Valiente Barroso, Rafael|||0000-0001-9855-8309 Beobide Pacheco, Garikoitz Cano Rico, Israel Martín Rodríguez, Rosa Pedro del Valle, Imanol de|||0000-0002-5581-2220 Albo Sánchez, Jonathan|||0000-0001-6781-5704 Artificial photosynthesis Alcohols Optofluidics TiO2 nanocrystals Visible light Considering CO2 as an alternative and sustainable resource, rather than as a waste to be treated, this work proposes the combination of doped TiO2 nanocrystals with optofluidics for the continuous photoreduction of CO2 to alcohols under ultraviolet and visible light. This approach aims at overcoming one of the major limitations of this technology, namely, current photoreactor configurations and low activity under visible light of the up-to-date photocatalysts. Ce-doped and Cu–Ce-codoped TiO2 nanocrystals, synthesized by a simple and green hydrothermal method with different Cu and Ce contents, are used in a planar optofluidic microreactor with an enhanced surface-area-to-volume ratio, uniform light distribution, and a larger photon receiving area. The results show promising alcohol production rates when doping the photoactive TiO2 nanocrystals with Ce, which leads to a maximum rate of 116 μmol·g–1·h–1 for ethanol and 106 μmol·g–1·h–1 for methanol, exceeding most of the reported values for visible-light-driven CO2 photoreduction to alcohol systems. It is worth noting that the system remains pseudostable for up to 6 h of continuous operation. Altogether, this work provides novel insights into the development of innovative systems for the transformation of CO2 to alcohols under sunlight irradiation. The authors gratefully acknowledge the financial support from Ministerio de Ciencia e Innovación (MCIN) and Spanish State Research Agency (AEI) through the research projects PID2019-104050RA-I00 and TED2021-129810B-C21 funded by MCIN/AEI/10.13039/501100011033. American Chemical Society https://hdl.handle.net/10902/30219 |
| title |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| spellingShingle |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 Diego Rucabado, Andrea Artificial photosynthesis Alcohols Optofluidics TiO2 nanocrystals Visible light |
| title_short |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| title_full |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| title_fullStr |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| title_full_unstemmed |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| title_sort |
Visible light active Ce-doped and Cu-Ce co-doped TiO2 nanocrystals and optofluidics for clean alcohol production from CO2 |
| author |
Diego Rucabado, Andrea |
| author_facet |
Diego Rucabado, Andrea Merino García, Iván Espeso Martínez, José Ignacio|||0000-0002-4018-7186 González Gómez, Jesús Antonio|||0000-0002-0381-6393 Arce Pascual, Beatriz Valiente Barroso, Rafael|||0000-0001-9855-8309 Beobide Pacheco, Garikoitz Cano Rico, Israel Martín Rodríguez, Rosa Pedro del Valle, Imanol de|||0000-0002-5581-2220 Albo Sánchez, Jonathan|||0000-0001-6781-5704 |
| author_role |
author |
| author2 |
Merino García, Iván Espeso Martínez, José Ignacio|||0000-0002-4018-7186 González Gómez, Jesús Antonio|||0000-0002-0381-6393 Arce Pascual, Beatriz Valiente Barroso, Rafael|||0000-0001-9855-8309 Beobide Pacheco, Garikoitz Cano Rico, Israel Martín Rodríguez, Rosa Pedro del Valle, Imanol de|||0000-0002-5581-2220 Albo Sánchez, Jonathan|||0000-0001-6781-5704 |
| author2_role |
author author author author author author author author author author |
| topic |
Artificial photosynthesis Alcohols Optofluidics TiO2 nanocrystals Visible light |
| topic_facet |
Artificial photosynthesis Alcohols Optofluidics TiO2 nanocrystals Visible light |
| description |
Considering CO2 as an alternative and sustainable resource, rather than as a waste to be treated, this work proposes the combination of doped TiO2 nanocrystals with optofluidics for the continuous photoreduction of CO2 to alcohols under ultraviolet and visible light. This approach aims at overcoming one of the major limitations of this technology, namely, current photoreactor configurations and low activity under visible light of the up-to-date photocatalysts. Ce-doped and Cu–Ce-codoped TiO2 nanocrystals, synthesized by a simple and green hydrothermal method with different Cu and Ce contents, are used in a planar optofluidic microreactor with an enhanced surface-area-to-volume ratio, uniform light distribution, and a larger photon receiving area. The results show promising alcohol production rates when doping the photoactive TiO2 nanocrystals with Ce, which leads to a maximum rate of 116 μmol·g–1·h–1 for ethanol and 106 μmol·g–1·h–1 for methanol, exceeding most of the reported values for visible-light-driven CO2 photoreduction to alcohol systems. It is worth noting that the system remains pseudostable for up to 6 h of continuous operation. Altogether, this work provides novel insights into the development of innovative systems for the transformation of CO2 to alcohols under sunlight irradiation. |
| publishDate |
2023 |
| format |
article |
| url |
https://hdl.handle.net/10902/30219 |
| language |
eng |
| eu_rights_str_mv |
openAccess |
| publisher |
American Chemical Society |
| institution |
Universidad de Cantabria (UC) |
| collection |
UCrea Repositorio Abierto de la Universidad de Cantabria |
| reponame_str |
UCrea Repositorio Abierto de la Universidad de Cantabria |
| instname_str |
Universidad de Cantabria (UC) |
| _version_ |
1878443508048592896 |
| publishDateSort |
2023 |
| author_browse |
Albo Sánchez, Jonathan|||0000-0001-6781-5704 Arce Pascual, Beatriz Beobide Pacheco, Garikoitz Cano Rico, Israel Diego Rucabado, Andrea Espeso Martínez, José Ignacio|||0000-0002-4018-7186 González Gómez, Jesús Antonio|||0000-0002-0381-6393 Martín Rodríguez, Rosa Merino García, Iván Pedro del Valle, Imanol de|||0000-0002-5581-2220 Valiente Barroso, Rafael|||0000-0001-9855-8309 |
| publisherStr |
American Chemical Society |
| score |
6,924472 |