Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 210, Issue -, Pages 484-494Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2017.04.021
Keywords
Photocatalysis; MOFs; PANI; FeUiO-66; Aerobic oxidation of alcohols
Funding
- NSFC [21563026, 21163016]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT15R56]
- Innovation Team Basic Scientific Research Project of Gansu Province [1606RJIA324]
- Key Laboratory of Eco-Environment-Related Polymer Materials (Northwest Normal University), Ministry of Education
Ask authors/readers for more resources
Metal-organic frameworks (MOFs), a new class of porous crystalline materials, have attracted great interest as fascinating applications for eco-friendly photocatalysts. In this study, new hybrid MOFs, iron doped zirconium based metal-organic frameworks, FeUiO-66, were successfully synthesized by hydrothermal method firstly. Then the PANI/FeUiO-66 nanohybrids were fabricated through annealing process. The photocatalytic performances of the obtained PANI/FeUiO-66 nanohybrids were evaluated by selectively oxidation of various alcohol substrates using molecular oxygen as a benign oxidant. Boosting by synergistically multi-doped effect, the catalytic activity of the novel PANI/FeUiO-66 is remarkably higher than that of bare UiO-66 under visible light irradiation at ambient temperature. Further analyses revealed that the enhancement of photocatalytic activity originated from the two aspects. On one hand, when the Fe doped into the framework, valence fluctuation of Fe2+/Fe3+ could reduce the recombination rate of photoexcited carriers. On the other hand, based on energy band matching between FeUiO-66 and PANI, the easily formed heterostructures from PANI and FeUiO-66 can efficiently enhance the separation of photogenerated carriers. Furthermore, by virtue of unique advantage of the position of the CB and VB of FeUiO-66, alcohols could be selectively oxidized by the center dot O-2(-) and h(+). Remarkably, it is expected that the MOF-conductive conjugated polymers nanohybrids could be used as efficient visible light driven photocatalysts for organic transformation with high selectivity under eco-friendly conditions. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available