Herein, a new type of photocatalysts, Au nanodots@thiol-UiO-66@ZnIn₂S₄ nanosheets (Au@UiOS@ZIS), is elaborately designed for the photocatalytic H₂ evolution from water splitting, where Au nanodots (NDs) are anchored in the pore space of thiol-functionalized UiO66 metal-organic framework (MOF) and ZnIn₂S₄ nanosheets are wrapped around the UiO66 MOF containing Au NDs. It is found that the different Au positions have a grateful effect on the transfer of photogenerated charge carriers. In Au@UiOS@ZIS, the photoexcited electrons transfers from ZnIn₂S₄ to UiOS and then to Au NDs, establishing a smooth transmission channel of electrons. As expected, the optimal sample (Au₄@UiOS@ZIS₄₀) presents a high photocatalytic H₂ production rate of 391.6 μmol/h (10 mg of catalyst) under visible light irradiation, which is 435.1, 61.2 and 10.2 times higher than that of the pure UiOS, ZnIn₂S₄ and UiOS@ZIS, respectively.

在此，精心设计了一种新型的光催化剂Au nanodots @ thiol-UiO-66 @ ZnIn ₂ S ₄纳米片（Au @ UiOS @ ZIS），用于从水分解产生光催化H _2的过程中，其中Au纳米点（NDs）是锚定在硫醇官能化的UiO66金属-有机骨架（MOF）和ZnIn ₂ S ₄纳米片的孔隙中，将其包裹在含Au ND的UiO66 MOF周围。发现不同的Au位置对光生载流子的转移具有感激的作用。在Au @ UiOS @ ZIS中，光激发电子从ZnIn ₂ S ₄转移到UiOS，然后到Au ND，建立一个平滑的电子传输通道。不出所料，最佳样品（Au ₄ @ UiOS @ ZIS ₄₀）在可见光照射下呈现出391.6μmol / h（10 mg催化剂）的高光催化H ₂生成速率，比其高435.1、61.2和10.2倍。分别是纯UiOS，ZnIn ₂ S ₄和UiOS @ ZIS。