Construction of NiAl-LDH/Mn0.5Cd0.5S heterostructure for enhancing photocatalytic H2 evolution

Plumbing and devising photocatalysts for high photocatalytic hydrogen production is still a major challenge. In this study, the NiAl-LDH/Mn 0.5 Cd 0.5 S heterostructure composites are prepared by hydrothermal method. When the loading weight of NiAl-LDH is 20 wt%, NiAl-LDH/Mn 0.5 Cd 0. 5S composites has the excellent ability to separate photogenerated charge carriers under visible light. Meantime, the NiAl-LDH/Mn 0.5 Cd 0.5 S composites possess prominent photocatalytic hydrogen production rates of 55.9 mmol·h −1 ·g −1 , which is 7.5 times of pure Mn 0.5 Cd 0.5 S and 25 times of NiAl-LDH. According to the data, the photocatalytic mechanism of electron-holes movement over NiAl-LDH/Mn 0.5 Cd 0.5 S composites is unlocked. This work offers a reference for designing novel heterojunction for photocatalytic production of H 2 .