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- W4377982912 abstract "BiFeO3 (BFO) has gained significant attention recently in photocatalytic water splitting due to its visible light active profile and facile synthesis design. However, a single component photocatalyst usually suffers from significant photoexcited charge-carrier recombination. To overcome this problem, BFO nanocuboids are coupled with two-dimensional Ca2Nb3O10 (CNO) nanosheets via a facile electrostatic self-assembly method. The surface charge of BFO nanocuboids is modulated via deposition of Co-nanoparticles to obtained positively charged BFO-Co nanocuboids. Resultantly, the combination of positively charged BFO-Co nanocuboids and negative charged CNO nanosheets demonstrated a direct Z-scheme heterojunction. The optimized BFO-Co/CNO heterostructure achieved outstanding photocatalytic O2 evolution (48.19 mmol g–1), which is 6.72 times higher than pristine BFO (7.17 mmol h–1 g–1). Different characterization confirmed that BFO-Co/CNO heterostructures exhibited improved charge-carrier separation and utilization compared to individual components. This improved response can be associated with a better contact interface between the oppositely charged surfaces with the added advantage of the perovskite nature of both components. As a result, BFO-Co/CNO heterostructures achieved the highest O2 evolution response for BFO-based heterostructures to date. This study offers a novel strategy for modulating the BFO nanocuboids surface charge via Co-nanoparticles deposition, which concomitantly worked as a cocatalyst, a potential strategy that can be applied for the design of various heterostructures." @default.
- W4377982912 created "2023-05-25" @default.
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- W4377982912 date "2023-05-24" @default.
- W4377982912 modified "2023-09-30" @default.
- W4377982912 title "BiFeO<sub>3</sub>-Based All Perovskite Oxides Direct Z-Scheme Heterostructure for Efficient Oxygen Evolution" @default.
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- W4377982912 doi "https://doi.org/10.1021/acsaem.3c00087" @default.
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