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Title: | Design of AIEgen-based porphyrin for efficient heterogeneous photocatalytic hydrogen evolution : special collection : aggregation-induced processes and functions | Authors: | Bodedla, GB Imran, M Zhao, J Zhu, X Wong, WY |
Issue Date: | 2023 | Source: | Aggregate, 2023, v. 4, no. 5, e364 | Abstract: | Tetraphenylethylene (TPE)-conjugated porphyrin TPE-ZnPF is synthesized in high yield and characterized by single-crystal X-ray diffraction. The propeller-shaped TPE groups not only enable exceptional aggregation-induced emission (AIE) in the solid state but also abolish the strong π-π stacking of porphyrin moieties and thus prohibit aggregation-caused quenching (ACQ). TPE-ZnPF aggregates feature long-lived photoexcited states, which subsequently suppress non-radiative decay channels and enhance emission intensity. Moreover, its aggregates show more efficient light-harvesting ability due to the Förster resonance energy transfer from the TPE energy donor to the porphyrin core energy acceptor, well-defined nanosphere morphology, and more efficient photoinduced charge separation than the porphyrin Ph-ZnPF, which possesses ACQ and agglomerated morphology. As a result, an excellent photocatalytic hydrogen evolution rate (ηH2) of 56.20 mmol g‒1 h‒1 is recorded for TPE-ZnPF aggregates, which is 94-fold higher than that of the aggregates of Ph-ZnPF (0.60 mmol g‒1 h‒1) without the TPE groups. | Keywords: | Aggregation-induced emission AIEgen Photocatalytic hydrogen evolution Porphyrin Π-π-stacking |
Publisher: | John Wiley & Sons, Inc. | Journal: | Aggregate2692-4560 | ISSN: | 2766-8541 | EISSN: | 2692-4560 | DOI: | 10.1002/agt2.364 | Rights: | © 2023 The Authors. Aggregate published by SCUT, AIEI, and John Wiley & Sons Australia, Ltd. This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by-nc/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. The following publication Bodedla, G. B., Imran, M., Zhao, J., Zhu, X., & Wong, W. Y. (2023). Design of AIEgen‐based porphyrin for efficient heterogeneous photocatalytic hydrogen evolution: Special Collection: Aggregation‐Induced Processes and Functions. Aggregate, 4(5), e364 is available at https://doi.org/10.1002/agt2.364. |
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