Journal
CATALYSIS COMMUNICATIONS
Volume 155, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2021.106315
Keywords
H2O2; Single-electron ORR; Au/TiO2; Bi2O3
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Funding
- National Natural Science Foundation of China [51872091]
- Hundred Talents Program of Hebei Province [E2018050013]
- Natural Science Foundation of Hebei Province [B2018209267]
- Outstanding Youth Funds of North China University of Science and Technology [JP201604, JQ201706]
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The modification of Bi2O3 enhances the charge separation of the photocatalyst and improves the activity of Au/TiO2 for H2O2 production. In-situ electron spin resonance studies indicate a single-electron oxygen reduction reaction on the Au/Bi2O3-TiO2 photocatalyst for the production of H2O2. This work highlights the significance of heterojunction structure photocatalyst in enhancing the performance of TiO2 for producing concentrated H2O2.
In this work, an Au modified Bi2O3-TiO2 (Au/Bi2O3-TiO2) hybrid is developed as a simple and effective photocatalyst for the production of H2O2. The modification of Bi2O3 improves the charge separation of photocatalyst and significantly enhances the photocatalytic activity of Au/TiO2 for H2O2 production. In-situ electron spin resonance studies shows stepwise single-electron oxygen reduction reaction (ORR) on the Au/Bi2O3-TiO2 photocatalyst for the production of H2O2. This work demonstrates the importance of heterojunction structure photocatalyst for improved performance of TiO2 in order to produce concentrated H2O2.
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