We fabricated a multidimensional heterostructured In₂S₃–CuInS₂ photocatalyst to convert CO₂ to CO. The hybrid photocatalyst can be obtained by using an In-containing MOF as a precursor followed by sulfidation and ion exchange. Moreover, the multidimensional structure, a 2D nanosheet semiconductor distributed on 1D hollow nanotubes, inhibits the recombination of charge carriers, increases CO₂ adsorption and affords a large surface area promoting exposure of plentiful active sites. As a result, the as-synthesized optimal heterostructured In₂S₃–CuInS₂ display a excellent activity with the CO evolution rate of 19.00 μmol g⁻¹ h⁻¹ over the under visible light irradiation, which is roughly four times higher than that of pristine In₂S₃. This work might pave the way for increasing the performance of metal sulphide photocatalysts by MOF-guided chemistry.

中文翻译：

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多维In ₂ S ₃ –CuInS ₂异质结构，用于光催化二氧化碳还原†

我们制备了多维异质结构的In ₂ S ₃ -CuInS ₂光催化剂，将CO ₂转化为CO。可以通过使用含In的MOF作为前驱体，然后进行硫化和离子交换，获得杂化光催化剂。此外，多维结构是分布在1D空心纳米管上的2D纳米片半导体，它抑制了电荷载流子的复合，增加了CO _2的吸附，并提供了较大的表面积，促进了很多活性位点的暴露。结果，合成后的最佳异质结构In ₂ S ₃ –CuInS ₂表现出出色的活性，CO的释放速率为19.00μmolg在可见光照射下为^-1 h ^-1，约为原始In ₂ S _3的四倍。这项工作可能为通过MOF指导的化学方法提高金属硫化物光催化剂的性能铺平了道路。