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CuGaS2@NH2-MIL-125(Ti) nanocomposite: Unveiling a promising catalyst for photocatalytic hydrogen generation
Abstract
The development of efficient nanocomposites represents a promising strategy for enhancing the transfer and separation of photogenerated carriers within metal-organic frameworks (MOFs) for photocatalytic H2 generation. In this study, we report, for the first time, the successful fabrication of a novel CuGaS2@NH2-MIL-125(Ti) nanocomposite in a two-step synthesis, consisting of octahedral NH2-MIL-125(Ti) metal-organic frameworks interspersed with flat hexagonal plates of CuGaS2. The CuGaS2@NH2-MIL-125(Ti) nanocomposite effectively mitigates the recombination rate of photogenerated electron-hole pairs. Notably, the most active CuGaS2@NH2-MIL-125(Ti) composite (containing 30 wt% CuGaS2) achieves a remarkable hydrogen generation rate of 965.07 μmol/gcat, surpassing the performance of NH2-MIL-125(Ti) and CuGaS2 by approximately 83 and 144 times, respectively. Additionally, the apparent quantum efficiency for the most active material at a wavelength of 380 nm is 9.07%. This study provides valuable insights into the design of efficient I-III-VI2 compound-MOF nanocomposites for H2 generation applications.
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Authors (8)
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Anna Pancielejko
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Hanna Głowienke
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Magdalena Miodyńska
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Anna Gołąbiewska dr inż.
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Mirosław Krawczyk
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Krzysztof B. Matusiak
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Adriana Zaleska-Medynska prof. dr hab.
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
no. 79,
pages 186 - 198,
ISSN: 0360-3199 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Pancielejko A., Głowienke H., Miodyńska M., Gołąbiewska A., Klimczuk T., Krawczyk M., Matusiak K. B., Zaleska-Medynska A.: CuGaS2@NH2-MIL-125(Ti) nanocomposite: Unveiling a promising catalyst for photocatalytic hydrogen generation// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -Vol. 79, (2024), s.186-198
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ijhydene.2024.06.416
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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