Abstract
Maximizing solar energy utilization is a persistent challenge in photo catalysis,which determines sustain-able solar-driven photocatalytic process.Photo thermal-coupled photo catalysis is considered as a promis-ing solution to tackle the issues of sustainable energy scarcity and environmental pollution by harvesting the full-spectrum solar energy.Herein,a highly efficient photo thermal-accelerated photo catalysis system is elaborately established,in which the assembled carbonized stick/Nb2C MXene evaporator can heat wa-ter into vapor and the integrated g-C3N4 photocatalyst further enables high-efficiency photocatalytic hy-drogen production.The designed hyperboloid wood-based architecture possesses a multiphase interface of water steam/catalyst/hydrogen to reduce the transport resistance of hydrogen gas in liquid and ulti-mately maximize the output of hydrogen energy.Consequently,this coupled photothermal-photocatalytic system achieves a stable solar evaporation rate of 2.16 kg m-1 h-1 under one sun irradiation and highly efficient hydrogen-evolving rate of 3096 μmol g-1 h-1.This work paves a way to explore the improve-ment of photocatalytic hydrogen production by synergic photothermal effect for potential applications in renewable solar energy utilization and hydrogen production.
维普
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