Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage

This paper presented the fabrication of a multifunctional microcapsule, integrating visible-light-driven photocatalysis and latent heat storage capabilities. The core-shell structure incorporated a phase change material in the core, facilitating latent heat storage. Meanwhile the shell was composed...

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Main Authors: Zhao, Aiqin, Xiao, Xi, Hu, Zhong-Ting, Zhu, Weiping, Yang, Jinglei, Yang, En-Hua
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/176043
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1760432024-05-13T02:24:13Z Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage Zhao, Aiqin Xiao, Xi Hu, Zhong-Ting Zhu, Weiping Yang, Jinglei Yang, En-Hua School of Civil and Environmental Engineering Engineering Photocatalysis Thermal storage This paper presented the fabrication of a multifunctional microcapsule, integrating visible-light-driven photocatalysis and latent heat storage capabilities. The core-shell structure incorporated a phase change material in the core, facilitating latent heat storage. Meanwhile the shell was composed of fluorine-doped TiO2, enabling photocatalysis under visible light. Different from conventional fabrication methods necessitating stringent conditions, this study employed a synthesis approach viable at low temperatures (50–90 °C) and ambient pressure. The resulting microcapsule exhibited high photocatalytic capability under visible light, which was able to fully degrade organic dye within 7 h exposure to visible light. Parametric studies indicate photocatalytic efficiency was enhanced with reduced capsule size and elevated fabrication temperature. Optimal conditions were observed at a capsule size of 100 μm and a fabrication temperature of 90 °C. Furthermore, the microcapsule possessed a high thermal storage capacity of 99.4%, indicating the effectiveness of the shell in safeguarding the core material during the phase change process without compromising its energy storage capacity. Even after 100 h of exposure to visible light, the microcapsule demonstrated outstanding thermal stability and durability. Agency for Science, Technology and Research (A*STAR) Ministry of National Development (MND) The authors would like to acknowledge financial support from the Agency for Science, Technology and Research (A*STAR) – Ministry of National Development (MND), Singapore (SERC132 176 0014). 2024-05-13T02:24:13Z 2024-05-13T02:24:13Z 2024 Journal Article Zhao, A., Xiao, X., Hu, Z., Zhu, W., Yang, J. & Yang, E. (2024). Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage. Applied Energy, 359, 122674-. https://dx.doi.org/10.1016/j.apenergy.2024.122674 0306-2619 https://hdl.handle.net/10356/176043 10.1016/j.apenergy.2024.122674 2-s2.0-85182904208 359 122674 en SERC132 176 0014 Applied Energy © 2024 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Photocatalysis
Thermal storage
spellingShingle Engineering
Photocatalysis
Thermal storage
Zhao, Aiqin
Xiao, Xi
Hu, Zhong-Ting
Zhu, Weiping
Yang, Jinglei
Yang, En-Hua
Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
description This paper presented the fabrication of a multifunctional microcapsule, integrating visible-light-driven photocatalysis and latent heat storage capabilities. The core-shell structure incorporated a phase change material in the core, facilitating latent heat storage. Meanwhile the shell was composed of fluorine-doped TiO2, enabling photocatalysis under visible light. Different from conventional fabrication methods necessitating stringent conditions, this study employed a synthesis approach viable at low temperatures (50–90 °C) and ambient pressure. The resulting microcapsule exhibited high photocatalytic capability under visible light, which was able to fully degrade organic dye within 7 h exposure to visible light. Parametric studies indicate photocatalytic efficiency was enhanced with reduced capsule size and elevated fabrication temperature. Optimal conditions were observed at a capsule size of 100 μm and a fabrication temperature of 90 °C. Furthermore, the microcapsule possessed a high thermal storage capacity of 99.4%, indicating the effectiveness of the shell in safeguarding the core material during the phase change process without compromising its energy storage capacity. Even after 100 h of exposure to visible light, the microcapsule demonstrated outstanding thermal stability and durability.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Zhao, Aiqin
Xiao, Xi
Hu, Zhong-Ting
Zhu, Weiping
Yang, Jinglei
Yang, En-Hua
format Article
author Zhao, Aiqin
Xiao, Xi
Hu, Zhong-Ting
Zhu, Weiping
Yang, Jinglei
Yang, En-Hua
author_sort Zhao, Aiqin
title Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
title_short Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
title_full Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
title_fullStr Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
title_full_unstemmed Multifunctional F-doped TiO2 PCM microcapsules for visible-light-driven photocatalysis and latent heat storage
title_sort multifunctional f-doped tio2 pcm microcapsules for visible-light-driven photocatalysis and latent heat storage
publishDate 2024
url https://hdl.handle.net/10356/176043
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