Hydrogen evolution reaction/Oxygen evolution reaction (HER/OER) synergy would be the most important issue for overall water splitting. The Pt-free 1T/2H-MoS₂/CdS/MnO_x hollow core–shell nanocomposites are fabricated via a continuous hydrothermal–chemical method; therefore, the OER co-catalysts MnO_x and CdS shell are deposited on the surface of SiO₂ nanosphere templates continuously via hydrothermal–chemical method. Subsequently, the SiO₂ templates are etched via chemical method and the 2H-MoS₂/CdS hollow core–shell heterojunction and 1T-MoS₂ HER co-catalyst are introduced via one-step hydrothermal method. Evaluated by photocatalytic performance, the 1T/2H-MoS₂/CdS/MnO_x exhibits an enhanced HER performance of about ~50 folds than that of single CdS hollow nanosphere, and achieves a decent overall water splitting performance of about ~1668.00(H₂)/824.61(O₂) μmol/g∙h, which can be mainly ascribed to the well HER/OER synergy and formation of hollow core–shell structure. Therefore, the 1T-MoS₂ with quick electron transport and decent solid/liquid interface can promote the photogenerated electron diffusing, the MnO_x with mixed Mn³⁺/Mn⁴⁺ ions can activate the hole-related species for OH⁻ oxidation and promote H₂O₂ decomposition, the 2H–MoS₂/CdS heterojunction can separate the charge carrier and meet the potential to achieve overall water splitting. Additionally, the 1T/2H-MoS₂ with decent lattice matching can improve the charge carrier transport, the 1T-MoS₂ with sufficient specific surface areas can increase active sites and the hollow core–shell structure can increase solar efficiency which is also beneficial for enhancing the overall water splitting performance and stability.

析氢反应/析氧反应 (HER/OER) 协同作用将是整体水分解的最重要问题。通过连续水热化学方法制备了不含 Pt 的 1T/2H-MoS ₂ /CdS/MnO _x空心核壳纳米复合材料；因此，OER 助催化剂 MnO _x和 CdS 壳通过水热化学方法连续沉积在 SiO ₂纳米球模板的表面。随后，通过化学方法蚀刻SiO ₂模板和 2H-MoS ₂ /CdS 空心核壳异质结和 1T-MoS ₂HER助催化剂通过一步水热法引入。通过光催化性能评估，1T/2H-MoS ₂ /CdS/MnO _x表现出比单个 CdS 空心纳米球提高约 50 倍的 HER 性能，并实现了约 1668.00(H ₂ )/824.61(O ₂ ) μmol/g∙h，这主要归因于良好的 HER/OER 协同作用和空心核壳结构的形成。因此，具有快速电子传输和良好的固/液界面的1T-MoS ₂可以促进光生电子扩散，混合Mn ³⁺ /Mn ⁴⁺的MnO _x离子可以激活与空穴相关的物质进行 OH ^-氧化并促进 H ₂ O ₂分解，2H–MoS ₂ /CdS 异质结可以分离电荷载流子并满足实现整体水分解的潜力。此外，具有良好晶格匹配的 1T/2H-MoS ₂可以改善电荷载流子传输，具有足够比表面积的 1T-MoS ₂可以增加活性位点，空心核壳结构可以提高太阳能效率，这也有利于提高整体水分解性能和稳定性。