Hematite (α-Fe₂O₃) is one of the promising photoanode materials for photoelectrochemical (PEC) water splitting, but its poor bulk charge transfer has been challenging towards its practical application. Herein, we have synthesized the (Ti, Zr) co-doped hematite by a facile hydrothermal method. The cooperation of (Ti, Zr) co-doped hematite yields photocurrent density of 1.51 mA cm⁻² at 1.23 V vs. RHE and IPCE of 17.3% at 400 nm. The structural and PEC analysis indicate that the considerably PEC performance improvement is contributed to the higher carrier density and enhanced charge transfer of the synergistic effect of Ti and Zr co-doping.

赤铁矿（α-的Fe ₂ ö ₃）是有前途的光电阳极材料的光电化学（PEC）水分解中的一个，但是其差散装电荷转移已朝向其实际应用挑战。在此，我们通过简便的水热法合成了（Ti，Zr）共掺杂赤铁矿。（Ti，Zr）共掺杂赤铁矿的协同作用在1.23 V时产生1.51 mA cm ^-2的光电流密度，而在400 nm处的RHE和IPCE则为17.3％。结构和PEC分析表明，PEC性能的显着提高有助于更高的载流子密度和增强的Ti和Zr共掺杂协同效应的电荷转移。