Journal
CRYSTAL RESEARCH AND TECHNOLOGY
Volume 56, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/crat.202000219
Keywords
Bi2MoO6; peroxymonosulfate; photocatalysis; sulfate radicals
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Funding
- Xi'an University of Architecture and Technology Science Foundation [ZR18072]
- National Natural Science Foundation of China [21301135]
- Shaanxi Natural Science Foundation Project [2019JM-253, 2021JM-362]
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Bi2MoO6 nanoflakes were synthesized via a normal hydrothermal method, showing lower photocatalytic activity for the degradation of methylene blue under visible light. However, when used to activate peroxymonosulfate, Bi2MoO6 nanoflakes exhibited excellent degradation efficiency for methylene blue under visible light in the Bi2MoO6/Vis/peroxymonosulfate (PMS) system. The mechanism of activating peroxymonosulfate was proved by radical quenching experiment, revealing the governing role of sulfate radicals in the removal of methylene blue.
Bi2MoO6 nanoflakes are synthesized via a normal hydrothermal method. Bi2MoO6 photocatalysts show lower photocatalytic activity for the degradation of methylene blue under visible light irradiation. In order to further enhance the degradation efficiency, Bi2MoO6 is used to activate the peroxymonosulfate for the degradation of methylene blue under visible light. Bi2MoO6 nanoflakes show excellent degradation efficiency in the Bi2MoO6/Vis/peroxymonosulfate (PMS) system. Moreover, the influences of PMS dosage, pH value, and inorganic anions on photodegradation are evaluated. The mechanism of activating peroxymonosulfate is proved by radical quenching experiment, which reveals that sulfate radicals govern the removal of methylene blue.
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