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- W2557904331 abstract "In this study, an attempt was made to modify the photocatalytic properties of an ion-exchangeable semiconductor material to enhance the efficiency of hydrogen production. Visible-light active NiFe2O4 was loaded onto NiZn/Cr layered double hydroxide (LDH) (Ni/Zn molar ratio = 75/25) with the Fe/Cr molar ratio of 0.005, 0.010, and 0.015 as cocatalyst through a simple solvothermal process and subsequently subjected to calcination at temperature of 500 °C. The results revealed that the presence of the loaded cocatalyst significantly facilitated the photocatalytic activity and the mixed oxide with Fe/Cr = 0.010 displayed the highest photocatalytic activity for visible light-induced H2 generation. The optimal amount of hydrogen evolution reached to 269.44 μmolh−1 under visible light (λ > 420 nm), which is far superior to that of the pristine NiZn/Cr LDH-derived oxides material (130.85 μmolh−1), indicating the important catalytic role of NiFe2O4. The significant enhancement in photoactivity was attributed to the synergistic effect of nickel ferrite attached on the external surface of the calcined brucite-like sheets of the LDH. The cocatalyst NiFe2O4 nanoparticles increase the donor or acceptor levels in comparison with the pristine NiZn/Cr LDH-derived semiconductor oxide. Moreover, the existence of sheet-like LDH-derived carrier could inhibit the rapid recombination of photogenerated electrons and holes." @default.
- W2557904331 created "2016-12-08" @default.
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- W2557904331 date "2017-01-01" @default.
- W2557904331 modified "2023-10-15" @default.
- W2557904331 title "A promising synergistic effect of nickel ferrite loaded on the layered double hydroxide-derived carrier for enhanced photocatalytic hydrogen evolution" @default.
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- W2557904331 doi "https://doi.org/10.1016/j.ijhydene.2016.10.018" @default.
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