Water-soluble photocatalysts based on porphyrin-carbon dot conjugates produce H<sub>2</sub> under visible light irradiation

Herein, we report visible-light-induced hydrogen generation from aqueous protons utilizing a novel hybrid photocatalytic nanomaterial comprising porphyrin-carbon dot conjugates. Amide coupling between metallated tetra-carboxyphenyl porphyrins (MTCPPs) and nitrogen doped carbon dots (NCDots) was performed to afford M-TCPP-NCDots hybrids, which were applied in hydrogen evolution photocatalysis under visible irradiation. H<sub>2</sub> was obtained in the presence of appropriate sacrificial electron donors and with no additional metallic co-catalysts. It is noteworthy that the covalent attachment as well as the zinc-metallation of the porphyrin moiety were proved vital for the efficiency of the present system. The present study constitutes an innovative approach for artificial photosynthesis avoiding the use of costly materials such as noble metals.

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Publication Details

Journal
Dalton Transactions
Published
2024-11-04
DOI
https://doi.org/10.1039/d4dt02101k
Citations
6
Primary Topic
Carbon and Quantum Dots Applications
Type
article
Field-Weighted Citation Impact
0.70

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article

Water-soluble photocatalysts based on porphyrin-carbon dot conjugates produce H2 under visible light irradiation

Georgios Charalambidis, Katerina Achilleos, Dimitris Tsikritzis, Emmanouil Nikoloudakis et al.
6 citations
Dalton Transactions
Carbon and Quantum Dots Applications
0.70
article

Water-soluble photocatalysts based on porphyrin-carbon dot conjugates produce H2 under visible light irradiation

Georgios Charalambidis, Katerina Achilleos, Dimitris Tsikritzis, Emmanouil Nikoloudakis, Kalliopi Ladomenou, Athanassios Georgios Coutsolelos, Emmanuel I. Stratakis, Anna Katsari, Foteini Chatzipetri
article en
6 citations

Abstract

Herein, we report visible-light-induced hydrogen generation from aqueous protons utilizing a novel hybrid photocatalytic nanomaterial comprising porphyrin-carbon dot conjugates. Amide coupling between metallated tetra-carboxyphenyl porphyrins (MTCPPs) and nitrogen doped carbon dots (NCDots) was performed to afford M-TCPP-NCDots hybrids, which were applied in hydrogen evolution photocatalysis under visible irradiation. H<sub>2</sub> was obtained in the presence of appropriate sacrificial electron donors and with no additional metallic co-catalysts. It is noteworthy that the covalent attachment as well as the zinc-metallation of the porphyrin moiety were proved vital for the efficiency of the present system. The present study constitutes an innovative approach for artificial photosynthesis avoiding the use of costly materials such as noble metals.

Dalton TransactionsVol. 54(1)
University of Crete (GR), Democritus University of Thrace (GR), Harbin Engineering University (CN), Hellenic Mediterranean University (GR), FORTH Institute of Electronic Structure and Laser (GR), National Hellenic Research Foundation (GR)
European Commission, Bodossaki Foundation, University of Crete, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme
Openalex Percentile: Top 29%
Carbon and Quantum Dots Applications
0.70
DOIOpen Access PDFOpenAlex
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