Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 59, Issue 30, Pages 13528-13538Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c02872
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Funding
- National Natural Science Foundation of China [21975069, 21725602, 21776064, 21938002]
- Innovative Research Groups of Hunan Province [2019JJ10001]
- Science and Technology Planning Project of Hunan Province [2019RS3010]
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Selective photooxidation of toluene to benzaldehyde using O-2 as an oxidant has the advantages of mild reaction conditions and excellent atomic economy, but it often suffers from low conversion efficiency. To promote the photooxidation process, we fabricated iron-doped Bi2WO6 microflowers by a simple hydrothermal method to boost the formation of oxygen vacancies. The rich presence of oxygen vacancies not only accelerates the separation of photogenerated charge carriers but also enhances O-2 activation for center dot O-2(-) generation. Besides the slight improvement of Bi2WO6 stability, the Fe-doped Bi2WO6 displays enhanced activity and selectivity for benzaldehyde generation from toluene under visible light. This work illustrates a simple strategy for successful modulation of Bi2WO6 for improved performance in the photocatalytic selective oxidation processes.
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