In this work ZnO/ZnSe composites were successfully synthesized via solvothermal method and characterized by a series of experiments for investigating into their compositions, morphologies, microstructures and the activities of photocatalytic reduction of CO₂. The methanol rates of bare ZnO and ZnSe respectively were 763.9 μmol/g_cat/h and 503.88 μmol/g_cat/h. However, the sample of 3%wt ZnO/ZnSe performed better photocatalytic activity up 1581.82 μmol/g_cat/h compared to bare ZnO and ZnSe. In the as-prepared photocatalyst the nanosheet of ZnSe benefited the light harvest; suitable deposition of ZnO on the ZnSe nanosheet constructed a type II heterojunction for transferring the photo-generated electron to reduce CO₂.

这项工作通过溶剂热法成功地合成了ZnO / ZnSe复合材料，并通过一系列实验研究了它们的组成，形貌，微观结构以及光催化还原CO ₂的活性。裸露的ZnO和ZnSe的甲醇速率分别为763.9μmol/ g _cat / h和503.88μmol/ g _cat / h。然而，与裸露的ZnO和ZnSe相比，3％wt ZnO / ZnSe的样品表现出更好的光催化活性，高达1581.82μmol/ g _cat / h。在制备的光催化剂中，ZnSe纳米片有利于光的收集。ZnO在ZnSe纳米片上的适当沉积构造了II型异质结，用于转移光生电子以减少CO ₂。