Abstract
AbstractBi2MoO6 microspheres were modified by loading AgI nanoparticles on their surfaces by a facile deposition/precipitation approach. The as‐prepared AgI/Bi2MoO6 heterostructured photocatalysts exhibit much higher photocatalytic activities for the degradation of rhodamine B (RhB) and bisphenol A (BPA) than P25, AgI, Bi2MoO6, and a mechanical mixture of AgI and Bi2MoO6. The composite with 20 wt.‐% AgI shows the highest degradation efficiency. The enhanced photocatalytic properties of the AgI/Bi2MoO6 heterostructures are attributed to their larger surface areas, extended absorption in the visible‐light range, and efficient separation of photoinduced carriers at the interfaces of the AgI and Bi2MoO6 nanocrystals. The AgI/Bi2MoO6 photocatalyst is stable during the catalytic reaction and can be used repeatedly. Moreover, O2·– and h+ were verified as the main active species in the decomposition of organic pollutants. A possible photocatalytic mechanism is also proposed.
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