Construction of Ag/AgCl@MIL-53(Fe): Achieving Efficient Photocatalytic Water Oxidation via the Plasma-Phase Silver and Heterojunction Synergistic Effect

Authors

DOI:

https://doi.org/10.31489/2959-0663/3-24-14

Keywords:

Metal organic framework (MOFs), hydrothermal method, MIL-53(Fe), Ag/AgCl@MIL 53(Fe), surface plasma resonance, heterojunction, photocatalysis of water oxidation, photocurrent densities

Abstract

The development of highly efficient water oxidation catalysts is a bottleneck in achieving artificial photosynthesis, as water oxidation is a complex process involving multiple electron and proton transfers. To further improve the photocatalytic water oxidation performance of MIL-53(Fe), a series of Ag/AgCl@MIL-53(Fe) samples with different Fe:Ag ratios were synthesized by hydrothermal methods and used in the photocatalytic water oxidation reactions. XRD characterization showed the successful preparation of Ag/AgCl@MIL-53(Fe) heterostructure catalysts. The reaction results showed that sample AAM-2 (Fe:Ag=5:1) had the best photocatalytic water oxidation performance, with the highest TOF value of 0.14 mmol/(g·s) and quantum efficiency of 39.0 % under the conditions of catalyst mass of 1 mg and pH=9.0 for boric acid-borax buffer solution. Measurements of photocurrent indicated that the AAM-2 samples doped with Ag/AgCl had higher photocurrent densities, thus improving the photocatalytic performance. This provides new insights for constructing highly efficient porous MOFs catalysts.

Construction of Ag/AgCl@MIL-53(Fe): Achieving Efficient Photocatalytic Water Oxidation via the Plasma-Phase Silver and Heterojunction Synergistic Effect

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Published

2024-09-23

How to Cite

Liu, X., Bekchanov, D., Baikenov, M. I., & Su, X. (2024). Construction of Ag/AgCl@MIL-53(Fe): Achieving Efficient Photocatalytic Water Oxidation via the Plasma-Phase Silver and Heterojunction Synergistic Effect. EURASIAN JOURNAL OF CHEMISTRY, 29(3 (115), 160–170. https://doi.org/10.31489/2959-0663/3-24-14

Issue

Vol. 29 No. 3 (115) (2024): Eurasian Journal of Chemistry

Section

NANO- AND PHOTO- CATALYSIS IN CURRENT CHEMISTRY: POSSIBILITIES AND CHALLENGES

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Copyright (c) 2024 Xiaofei Liu, Davronbek Bekchanov, Murzabek I. Baikenov, Xintai Su

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY-NC-ND 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.