2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Xiaoqian Xu
  • Hui Wang
  • Ting Gao
  • Tian Luo
  • Irina Zvere
  • Farid Orudzhev
  • Chuanyi Wang
  • Detlef Wemer Bahnemann

Research Organisations

External Research Organisations

  • Shaanxi University of Science and Technology
  • Saint Petersburg State University
  • Russian Academy of Sciences (RAS)
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Details

Original languageEnglish
Article number2400081
Number of pages10
JournalSolar RRL
Volume8
Issue number9
Early online date25 Mar 2024
Publication statusPublished - 6 May 2024

Abstract

The effective utilization of light is crucial in the use of the solar energy for CO2 conversion into valuable fuels and chemicals, in which improving the photocatalytic materials’ capacity to absorb light is a key. Herein, a 2D copper–porphyrin metal−organic framework (MOF)-photosensitized titania, TiO2/Zn–CuTCPP, is reported, which can absorb wide range of light and photoreduce CO2 with high efficiency under full spectrum irradiation. Fluorescence spectral analysis elucidates the relationship between the photocatalytic activity and the electron–hole separation efficiency. In addition, mechanistic information obtained from electron paramagnetic resonance and in situ infrared analyses demonstrates that the presence of Cu–N4 site in the MOF structure is conducive to the generation of hydrogen free radicals (•H), which plays a key role in the formation of intermediates, thus facilitating the hydrogenation in the reaction process. Consequently, TiO2/Zn–CuTCPP significantly enhances the photocatalytic conversion of CO2 into CH4 with a yield 14 times higher than that of P25.

Keywords

    copper–porphyrin, metal−organic frameworks, photocatalytic CO reduction, photosensitization

ASJC Scopus subject areas

Cite this

2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4. / Xu, Xiaoqian; Wang, Hui; Gao, Ting et al.
In: Solar RRL, Vol. 8, No. 9, 2400081, 06.05.2024.

Research output: Contribution to journalArticleResearchpeer review

Xu, X, Wang, H, Gao, T, Luo, T, Zvere, I, Orudzhev, F, Wang, C & Bahnemann, DW 2024, '2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4', Solar RRL, vol. 8, no. 9, 2400081. https://doi.org/10.1002/solr.202400081
Xu, X., Wang, H., Gao, T., Luo, T., Zvere, I., Orudzhev, F., Wang, C., & Bahnemann, D. W. (2024). 2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4. Solar RRL, 8(9), Article 2400081. https://doi.org/10.1002/solr.202400081
Xu X, Wang H, Gao T, Luo T, Zvere I, Orudzhev F et al. 2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4. Solar RRL. 2024 May 6;8(9):2400081. Epub 2024 Mar 25. doi: 10.1002/solr.202400081
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title = "2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4",
abstract = "The effective utilization of light is crucial in the use of the solar energy for CO2 conversion into valuable fuels and chemicals, in which improving the photocatalytic materials{\textquoteright} capacity to absorb light is a key. Herein, a 2D copper–porphyrin metal−organic framework (MOF)-photosensitized titania, TiO2/Zn–CuTCPP, is reported, which can absorb wide range of light and photoreduce CO2 with high efficiency under full spectrum irradiation. Fluorescence spectral analysis elucidates the relationship between the photocatalytic activity and the electron–hole separation efficiency. In addition, mechanistic information obtained from electron paramagnetic resonance and in situ infrared analyses demonstrates that the presence of Cu–N4 site in the MOF structure is conducive to the generation of hydrogen free radicals (•H), which plays a key role in the formation of intermediates, thus facilitating the hydrogenation in the reaction process. Consequently, TiO2/Zn–CuTCPP significantly enhances the photocatalytic conversion of CO2 into CH4 with a yield 14 times higher than that of P25.",
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note = "Funding Information: This work was supported by the National Natural Science Foundation of China (grant nos. 52161145409 and 21976116), Shaanxi Science and Technology Program (grant no. 2020KWZ‐005), and Foreign Expert Project of SAFEA of China (grant nos. DL2023041004L and G2023041021L). ",
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T1 - 2D Copper–Porphyrin Metal–Organic Framework Nanosheet-Photosensitized TiO2 for Efficiently Broadband Light-Driven Conversion of CO2 to CH4

AU - Xu, Xiaoqian

AU - Wang, Hui

AU - Gao, Ting

AU - Luo, Tian

AU - Zvere, Irina

AU - Orudzhev, Farid

AU - Wang, Chuanyi

AU - Bahnemann, Detlef Wemer

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (grant nos. 52161145409 and 21976116), Shaanxi Science and Technology Program (grant no. 2020KWZ‐005), and Foreign Expert Project of SAFEA of China (grant nos. DL2023041004L and G2023041021L).

PY - 2024/5/6

Y1 - 2024/5/6

N2 - The effective utilization of light is crucial in the use of the solar energy for CO2 conversion into valuable fuels and chemicals, in which improving the photocatalytic materials’ capacity to absorb light is a key. Herein, a 2D copper–porphyrin metal−organic framework (MOF)-photosensitized titania, TiO2/Zn–CuTCPP, is reported, which can absorb wide range of light and photoreduce CO2 with high efficiency under full spectrum irradiation. Fluorescence spectral analysis elucidates the relationship between the photocatalytic activity and the electron–hole separation efficiency. In addition, mechanistic information obtained from electron paramagnetic resonance and in situ infrared analyses demonstrates that the presence of Cu–N4 site in the MOF structure is conducive to the generation of hydrogen free radicals (•H), which plays a key role in the formation of intermediates, thus facilitating the hydrogenation in the reaction process. Consequently, TiO2/Zn–CuTCPP significantly enhances the photocatalytic conversion of CO2 into CH4 with a yield 14 times higher than that of P25.

AB - The effective utilization of light is crucial in the use of the solar energy for CO2 conversion into valuable fuels and chemicals, in which improving the photocatalytic materials’ capacity to absorb light is a key. Herein, a 2D copper–porphyrin metal−organic framework (MOF)-photosensitized titania, TiO2/Zn–CuTCPP, is reported, which can absorb wide range of light and photoreduce CO2 with high efficiency under full spectrum irradiation. Fluorescence spectral analysis elucidates the relationship between the photocatalytic activity and the electron–hole separation efficiency. In addition, mechanistic information obtained from electron paramagnetic resonance and in situ infrared analyses demonstrates that the presence of Cu–N4 site in the MOF structure is conducive to the generation of hydrogen free radicals (•H), which plays a key role in the formation of intermediates, thus facilitating the hydrogenation in the reaction process. Consequently, TiO2/Zn–CuTCPP significantly enhances the photocatalytic conversion of CO2 into CH4 with a yield 14 times higher than that of P25.

KW - copper–porphyrin

KW - metal−organic frameworks

KW - photocatalytic CO reduction

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