Journal
CHEMCATCHEM
Volume 7, Issue 16, Pages 2467-2474Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201500263
Keywords
carbon; cobalt; fluorescence; hybrid materials; radical reactions
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Funding
- National Science Foundation for Fostering Talents in Basic Research of National Natural Science Foundation of China [J1103307]
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A cobalt@carbon-dots (Co@C-dots) hybrid material is successfully prepared and well characterized. The hybrid material exhibits intrinsic peroxidase-like activity and can be utilized for the degradation of methylene blue; it shows enhanced catalytic activities compared with bare Co nanoparticles or C-dots. The good catalytic performance of the hybrid material may be attributed to synergistic effects between the Co nanoparticles and C-dots. Furthermore, the catalytic mechanism of the Co@C-dots hybrid material is also studied by using steady-state and time-resolved fluorometric analysis, which reveals that Co@C-dots can effectively decompose H2O2 to produce reactive hydroxyl radicals (OH). These results suggest that the Co@C-dots hybrid material could be a promising material applied for biochemical analysis and water treatment.
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