Hybrid nanocomposites with enhanced visible light photocatalytic ability for next generation of clean energy systems

•Proposed to advance the next generation of heterostructures with high photocatalytic activity.•Relied on facile wet chemistry and photoreduction-based synthesis to design and fabricate platinum loaded tungsten trioxide (WO3) nanoparticles/graphene heterostructures.•Evaluated heterostructure morphologies, chemical and physical properties, and their efficiency for stable photocatalysis of model system.•Unraveled the fundamental mechanisms, properties and processes that allowed for increased performance, reliability, and competitiveness of such heterostructures.•Photocatalysis at such user-formed heterointerfaces related to the available area for reaction and the electron-hole pair recombination rate, all under visible light.