@article{Liu2026, 
author = {Zhiyu Liu and Yanqiu Yang and Baijie Guan and Peng Song and Lingru Kong},
title = {Synergistic improvement in photocatalytic CO2 reduction via oxygen vacancy engineering and S-scheme heterojunction construction in MnFe2O4/Bi2WO6 hybrids},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {1},
pages = {94908306},
keywords = {CO2 photoreduction, oxygen vacancy, S-scheme heterojunction, density functional theory (DFT) calculations},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908306},
doi = {10.26599/NR.2025.94908306},
abstract = {The exploration of efficient photocatalytic materials for CO2 conversion into hydrocarbon energy fuel is of paramount significance. However, problems, such as rapid charge recombination, low quantum efficiency, and poor product selectivity, still limit the efficiency of photocatalytic CO2 reduction. Here, this study reports a S-scheme heterostructure of MnFe2O4/Bi2WO6, formed by loading MnFe2O4 nanoparticles onto Bi2WO6 microflowers with oxygen-rich vacancies, enabling photocatalytic CO2 reduction. Notably, the developed MnFe2O4/Bi2WO6 heterostructure improved the photocatalytic CO2 reduction ability, achieving a maximum CO generation rate of 32.7 μmol·h−1·g−1, which is 3.7 and 14.3 times higher than that of Bi2WO6 and MnFe2O4, respectively. Additionally, the CO production mechanism by CO2 photocatalytic reduction was proposed based on detailed characterization and density functional theory (DFT) calculation. The findings of this study suggest that introducing oxygen vacancies and constructing heterojunctions can significantly improve the photocatalytic CO2 reduction performance of Bi2WO6.}
}