Hollow MoS2@ZnIn2S4 nanoboxes for improving photocatalytic hydrogen evolution
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY(2024)
摘要
Semiconductor materials have become the primary photocatalysts for photocatalytic hydrogen production. However, the design and synthesis of effective photocatalytic materials with excellent electron/hole separation efficiency, fast charge transfer, and low carrier recombination rate still face great challenge. Herein, hollow p-n heterojunction MoS2@ZnIn2S4 nanoboxes are synthesized for the first time by growing n-type ZnIn2S4 (ZIS) twodimensional nanosheets on the surface of p-type hollow MoS2 nanoboxes (MSNBs), which exhibits obvious photocatalytic activity. Among them, 5% MSNBs@ZIS photocatalyst shows the highest hydrogen production efficiency of 22.25 mmol h-1 g-1, which is 7.3 times that of pure ZIS. The high photocatalytic hydrogen production efficiency of 5% MSNBs@ZIS can be attributed to the formation of hollow structure and p-n heterojunction, which can provide a large number of catalytic active sites, large surface area, and can effectively promote the separation of photogenerated carriers, respectively.
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