Journal
DALTON TRANSACTIONS
Volume 52, Issue 19, Pages 6375-6387Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3dt00819c
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Ternary BiOCl/C/Cu2O catalysts with different mass ratios were synthesized using a simple hydrothermal method and exhibited better photocatalytic activity than the monomer. The 25% BiOCl/C/Cu2O catalyst showed optimal performance with CO and CH4 yields 2.9 and 8.7 times higher than pristine Cu2O, respectively. This improvement can be attributed to the Z-scheme heterostructure and carbon layer, facilitating the transfer and separation of photogenerated carriers. This study provides valuable references for the design and investigation of Z-scheme heterojunctions using carbon layer as an electron transfer medium.
The photocatalytic reduction of CO2 to hydrocarbons is expected to simultaneously alleviate the energy crisis and greenhouse effect. Herein, the ternary BiOCl/C/Cu2O catalysts with different mass ratios were compounded using a simple hydrothermal method, revealing better photocatalytic activity than the monomer. In the absence of sacrificial agents and photosensitizers, 25% BiOCl/C/Cu2O showed optimal photocatalytic performance. The CO and CH4 yields over 25% BiOCl/C/Cu2O reached 26.77 and 9.86 mu mol g(-1) h(-1), which is 2.9 and 8.7 times higher than that of the pristine Cu2O, respectively. The ameliorative activity can be attributed to the construction of the Z-scheme heterostructure and carbon layer, which are conducive to the transfer and separation of photogenerated carriers. This study offers valuable references for the design and investigation of a Z-scheme heterojunction using a carbon layer as an electron transfer medium.
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