| Autor: |
Liu, Xiaojuan, Wu, Fengjing, Au, Chaktong, Li, Gucai, Cheng, Jiangtao, Ling, Yuxuan, Guan, Yao, Li, Jiao, Liao, Kanglong |
| Zdroj: |
Reaction Kinetics, Mechanisms & Catalysis; Aug2020, Vol. 130 Issue 2, p1109-1121, 13p |
| Abstrakt: |
Co3O4-g-C3N4 hybrid catalysts with different levels of cobalt doping were successfully synthesized via a facile one-pot thermal condensation method. The composition and morphology of the as-prepared Co3O4-g-C3N4 were characterized by XRD, FT-IR and SEM techniques, and evaluated for the catalytic oxidation of 3′,3′,5′,5′-tetramethylbenzidinein (TMB) in the presence of hydrogen peroxide, focusing on the nature of peroxidase-like activity. Catalytic kinetic analysis reveals that the optimized 2.0wt%Co3O4-g-C3N4 shows affinity toward TMB higher than g-C3N4, having activity comparable to that of horseradish peroxidase. This is plausibly due to the synergistic effect of Co3O4 and g-C3N4 as well as the structure of Co3O4-g-C3N4. In rhodamine B degradation, 2.0wt%Co3O4-g-C3N4 displays a reaction rate four times that of g-C3N4. The results reveal that Co3O4-g-C3N4 is a promising artificial peroxidase mimic efficient for degrading water contaminants. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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