Controllable Preparation of Hierarchical Mnco Bimetallic Photocatalyst and the Effect of Atomic Ratio on its Photocatalytic Activity
In recent years, bimetal has become an important branch of catalysis because of its unique interatomic synergistic activity. The development of high-performance bimetal photocatalyst, the influence of atomic ratio and other factors on photocatalytic performance and its mechanism remain to be further explored. Herein, a series of hierarchical MnCo bimetals were prepared at 180 ~ 200 ℃ with Mn:Co ratios of 1:2, 2:1 and 1:1 by a simple "hydrothermal/reduction" method. Combined with the density functional theory (DFT) and photocatalytic degradation, the catalytic performance of the bimetals was compared and discussed in detail. It is found that the light absorption range, photocurrent, photovoltage and energy density are greatly affected by the preparation temperature and atomic ratio. The degradation rate of the representative MnCo2-190 bimetal to norfloxacin (NOR) reached 98.91% within 65 min. Finally, the catalytic mechanism of different bimetals and Landau damping effect in the MnCo2 bimetals were analyzed
Year of publication: |
[2022]
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Authors: | Zhang, Chun ; Wang, Kangwang ; Xie, Kefeng ; Han, Xiaoqian ; Ma, Weigang ; Li, Xingang |
Publisher: |
[S.l.] : SSRN |
Saved in:
freely available
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