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Article Abstract
Covalent organic frameworks (COFs)-based dyads are emerging photocatalysts in solar-driven hydrogen production, it is crucial to expose active sites and promote mass transfer for promoting photocatalytic efficiency. Herein, surfactant-induced dynamic pore-making strategy to construct noble-metal-free photocatalytic systems by combining the ketoenamine-linked COFs on the surface of spinel-structured CuCoS (CuCoS/TpPa-Cl) is developed. The open hierarchically porous dyads supply rich active sites and enough channels for mass transfer. Hydrogen evolution rate of CuCoS/TpPa-Cl is as high as 25.56 mmol g h under visible light irradiation, which significantly surpasses those in surfactant-free counterpart (1.63 mmol g h) and Pt-loaded TpPa-Cl (12.38 mmol g h). Apparent quantum efficiency at 420 nm reaches 2.24%. This study presents new protocols for constructing noble-metal-free COFs-based photocatalytic systems with efficient solar energy conversion.
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