CdS@1T-MoS₂ composites with core-shell structure were synthesized through a hydrothermal treatment followed by a solvothermal treatment. Nanosized CdS particles were coated by a thin 1T-MoS₂ shell to form efficient heterojunction, as demonstrated by transmission electron microscopy images and X-ray photoelectron spectroscopy. Under visible-light irradiation, CdS@1T-MoS₂ composites with the MoS₂/CdS weight ratio of 0.5 exhibit the highest photocatalytic performance and the H₂ evolution rate reached 2.67 mmol h⁻¹ g⁻¹, which is 50 times that of single 1T-MoS₂ and 10 times that of single CdS. 1T-MoS₂, as a cocatalyst, donates the composites fast charge transfer ability and the high H₂ evolution activity, while the intimate heterojunction between CdS core and 1T-MoS₂ shell greatly increase the separation efficiency of photo-induced electron-hole pairs, as demonstrated by the electrochemical and PL results, resulting in the remarkable photocatalytic performance of the composites. This study supplies a facile and efficient strategy to develop the photocatalysts with boosted performance for hydrogen energy application.

通过水热处理，然后进行溶剂热处理，合成了具有核-壳结构的CdS @ 1T-MoS ₂复合材料。纳米CdS颗粒被薄的1T-MoS ₂壳包覆，形成有效的异质结，如透射电子显微镜图像和X射线光电子能谱所证明的。MoS ₂ / CdS重量比为0.5的CdS @ 1T-MoS ₂复合材料在可见光照射下表现出最高的光催化性能，H _2的析出速率达到2.67 mmol h ^-1  g ^-1，是H _2的50倍。 1T-MoS的₂倍和CdS的10倍。1T-MoS ₂作为助催化剂，它赋予了复合材料快速的电荷转移能力和高的H ₂析出活性，而CdS核与1T-MoS ₂壳之间紧密的异质结大大提高了光诱导电子-空穴对的分离效率，这表明电化学和PL结果，导致复合材料具有非凡的光催化性能。这项研究提供了一种简便有效的策略来开发具有增强性能的光催化剂，用于氢能应用。