A low-cost and stable Fe2O3/C-TiO2 system design for highly efficient photocatalytic H2 production from seawater
Yurong Yang, Li Liu, Qi Qi, Feiyang Chen, Min Qiu, Fan Gao, Jiaming Chen
Abstract
Photocatalytic seawater splitting for H2 production is extremely attractive in solar-to-fuel conversion areas toward achieving clean and renewable energy. In this study, we design a low-cost and robust Fe2O3/C-TiO2 Z-scheme system by applying Fe2O3 nanosheets as electron donor and C-doped TiO2 nanosheets as H2 generation photocatalysts, achieving highly efficient seawater splitting for H2 evolution without any sacrificial reagents. The Fe2O3/C-TiO2 Z-scheme system shows remarkable catalytic performance and high stability for H2 evolution in seawater. Under visible light illumination, the H2 generation rate reach 170.8 μmol g−1 h1 and remain unchanged in a 24 h cyclic test. This study may open avenues to designing low-price and stable photocatalysts for H2 extraction from seawater in future.