Construction of Ag/AgCl@MIL-53(Fe): Achieving Efficient Photocatalytic Water Oxidation via the Plasma-Phase Silver and Heterojunction Synergistic Effect
Liu X. Bekchanov D. Baikenov M.I. Su X.
2024E.A. Buketov Karaganda University Publish house
Eurasian Journal of Chemistry
2024#29Issue 3160 - 170 pp.
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.
Ag/AgCl@MIL 53(Fe) , heterojunction , hydrothermal method , Metal organic framework (MOFs) , MIL-53(Fe) , photocatalysis of water oxidation , photocurrent densities , surface plasma resonance
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College of Chemistry and Chemical Engneering, Xinjiang Agricultural University, 311 East Nongda Road, Urumqi, 830052, China
Faculty of Chemistry, Department of Polymer Chemistry, National University of Uzbekistan, Tashkent, 100174, Uzbekistan
Karaganda Buketov University, Universitetskaya street, 28, Karaganda, Kazakhstan
School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangdong, Guangzhou, China
College of Chemistry and Chemical Engneering
Faculty of Chemistry
Karaganda Buketov University
School of Environment and Energy
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