查看文章

Exploring efficient, stable and low-cost photocatalysts for photocatalytic hydrogen production remains a challenge in the field of energy conversion. Here, two-dimensional Ti₃C₂ nanosheets were fabricated via etching Ti₃AlC₂ with HF, followed by ultrasonic exfoliation. Then CdLa₂S₄/Ti₃C₂ nanocomposites were fabricated by growing CdLa₂S₄ nanoparticles in situ on the surface of these Ti₃C₂ nanosheets. The resultant CdLa₂S₄/Ti₃C₂ nanocomposites exhibited an excellent photocatalytic activity for H₂ production from water splitting under visible light illumination. When the content of Ti₃C₂ was 1.0 wt%, the CdLa₂S₄/Ti₃C₂ nanocomposites presented maximum hydrogen production rate of 11182.4 μmol·g⁻¹·h⁻¹, which was 13.4 times as high as that of pristine CdLa₂S₄ and even outperformed Pt-loaded CdLa₂S₄. The apparent quantum efficiency reached 15.6% at 420 nm. In addition, the CdLa₂S₄/Ti₃C₂ …