Development of photocatalytic systems for scalable and inexpensive solar hydrogen (H₂) requires non-noble-metal cocatalysts. Integration of Fe₃C with 1D metal sulfide photo-absorber highly improved the activity and durability of photocatalytic H₂ evolution. Consequently, the enhanced hydrogen evolution rate of 195 μmol h⁻¹ was achieved which is 15 times higher than that of pure CdS NRs. The apparent quantum yield was approached to 11.5 % under monochromatic 420 nm light. On the other hand, photocorrosion of the photosensitizer was hampered and the system demonstrated robust stability of 22 h under visible light. Moreover, Fe₃C showcased high current density with low overpotential for electrocatalytic HER, proving it feasible for H₂ evolution. The role of Fe₃C was comprehensively studied using electrochemical studies, BET surface area, PL and TRPL spectroscopy. This work demonstrated the exceptional potential of Fe₃C/CdS NRs as a promising inexpensive photocatalyst with high activity and stability for H₂ production under visible light.

用于可缩放且廉价的太阳能氢（H ₂）的光催化系统的开发需要非贵金属助催化剂。Fe ₃ C与一维金属硫化物光吸收剂的集成极大地提高了光催化H ₂析出的活性和耐久性。因此，实现了195μmolh ^-1的提高的析氢速率，是纯CdS NRs的15倍。在单色420nm光下，表观量子产率接近11.5％。另一方面，光敏剂的光腐蚀受到阻碍，该系统在可见光下显示了22小时的稳定稳定性。此外，Fe ₃C展示了高电流密度和低过电势的电催化HER，证明了它对于H ₂析出是可行的。使用电化学研究，BET表面积，PL和TRPL光谱法全面研究了Fe ₃ C的作用。这项工作证明了Fe ₃ C / CdS NRs作为一种有前途的廉价光催化剂具有巨大的潜力，该光催化剂对可见光下H _2的生产具有高活性和稳定性。