Developing high efficiency, environmentally friendly, and low-cost mesoporous Pt/ZnS photocatalyst for CO₂ conversion to CH₃OH is significant for clean energy conversion. Herein, we described a facile synthesis of mesoporous ZnS framework decorated Pt NPs as high efficiency for CO₂ conversion through visible light illumination. The results indicated that Pt/ZnS nanocomposites showed that the structural and crystallinity integrity of polyhedral heterojunction obviously maintain after incorporating Pt NPs, and they are well-distributed on the ZnS surface with particles size about 3–5 nm. The optimized photocatalyst 1.5% Pt/ZnS nanocomposite could prominently exhibit a high photocatalytic efficiency compared to undoped ZnS. Remarkably, the yield of CH₃OH of 400 µmolg^− 1 in 9 h over 1.5% Pt/ZnS nanocomposite indicated a significantly promoted CH₃OH formation, nearly 22-fold greater than that of the undoped ZnS NPs, which substantially verified the great promoting potential for conversion of clean energy. The CH₃OH formation rate over mesoporous 1.5% Pt/ZnS nanocomposite (44.5 µmolg⁻¹ h⁻¹) is larger 24 times than that of undoped ZnS NPs (1.86 µmolg⁻¹ h⁻¹). The recycled Pt/ZnS photocatalyst does not alter the CH₃OH formation remarkably after five repeating cycles with excellent durability. Electrochemical impedance spectroscopy, photocurrent response, and photoluminescence analyses were investigated to support our results and suggested mechanism for enhancement of CO₂ conversion to CH₃OH.

开发高效、环保、低成本的介孔 Pt/ZnS 光催化剂将 CO ₂转化为 CH ₃ OH 对清洁能源转化具有重要意义。在本文中，我们描述了介孔 ZnS 框架装饰的 Pt NPs 的简便合成，作为通过可见光照明进行 CO ₂转化的高效率。结果表明，Pt/ZnS 纳米复合材料表明，多面体异质结的结构和结晶完整性在掺入 Pt NPs 后明显保持，并且它们在 ZnS 表面均匀分布，粒径约为 3-5 nm。与未掺杂的 ZnS 相比，优化的光催化剂 1.5% Pt/ZnS 纳米复合材料可以显着地表现出高光催化效率。值得注意的是，CH 的产率1.5% Pt/ZnS 纳米复合材料在 9 小时内产生 400 µmolg ^{- 1 的}₃ OH表明显着促进了 CH ₃ OH 的形成，比未掺杂的 ZnS NPs 高近 22 倍，这基本上证实了清洁转化的巨大促进潜力。活力。CH ₃ OH 形成速率在介孔 1.5% Pt/ZnS 纳米复合材料（44.5 µmolg ^-1  h ^-1）上比未掺杂的 ZnS NP（1.86 µmolg ^-1  h ^-1）大 24 倍。回收的 Pt/ZnS 光催化剂不会改变 CH ₃5次重复循环后OH形成显着，具有优异的耐久性。研究了电化学阻抗谱、光电流响应和光致发光分析以支持我们的结果和建议的增强 CO ₂转化为 CH ₃ OH 的机制。