WO3 is a visible-light responsive photocatalyst that absorbs light up to 480 nm with several advantages such as low cost, harmlessness, and stability in acidic and oxidative conditions. WO3-based photocatalysts have various applications such as photodegradation of organics, air purification, self-cleaning, CO2 photoreduction, heavy metal ion treatment, hydrogen evolution from splitting water, and bacterial disinfection.
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According to the experts, the WO3 exposed {002}-dominant facet with high-surface-energy generally shows excellent photocatalytic performance, and the quantum-confined WO3 nanoparticles exhibit a promising future. The experts also introduced some main strategies for improving the photocatalytic activity of WO3, such as surface hybridization with graphene, noble metal deposition, semiconductor coupling, and alkali hydroxide loading. And a novel WO3-based photocatalyst with low cost and high efficiency can possess promising prospects of application to meet the urgent demands of highly efficient solar energy conversion in the areas of renewable energy and environmental purification.
