Multifunctional catalysts with photodegradation of organic contaminants and electrocatalytic hydrogen evolution are extremely urgent. In this work, a unique MoS₂ hollow microsphere with a diameter of 1.5 μm was fabricated without adding any spherical template by an improved hydrothermal process. Interestingly, the MoS₂ hollow microspheres with introduction of the NiS and Pd nanoparticles greatly restrain recombination rates of electron‐hole pairs, resulting in the outstanding photocatalytic activity. The RhB removal rates of the MoS₂ hollow microsphere and the NPMS composites were 7 and 10 times higher than that of pure MoS₂, respectively, for the high concentration of macrocyclic contaminants under visible‐light illumination. Furthermore, the optimal robust NPMS hybrids exhibite a lower overpotential of 100 mV (at 10 mV cm⁻²) and a smaller Tafel slope of 50 mV dec⁻¹. The unique structure composite catalysts possess more exposed active sites and defects to enhance the catalytic activity for HER and removal of organic pollution.

中文翻译：

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NiS纳米片和Pd纳米粒子降解的八方样催化剂的产氢和废水处理

具有有机污染物的光降解作用和电催化制氢的多功能催化剂非常迫切。在这项工作中，通过改进的水热工艺，在不添加任何球形模板的情况下，制造了直径为1.5μm的独特MoS ₂中空微球。有趣的是，引入了NiS和Pd纳米颗粒的MoS ₂中空微球极大地限制了电子-空穴对的复合速率，从而产生了出色的光催化活性。MoS ₂中空微球和NPMS复合材料的RhB去除率分别比纯MoS ₂高7和10倍分别用于可见光照明下的高浓度大环污染物。此外，最佳鲁棒的NPMS杂化物表现出较低的100 mV（在10 mV cm ^-2时）和较小的Tafel斜率（50 mV dec ^-1）。独特结构的复合催化剂具有更多暴露的活性位点和缺陷，可增强HER的催化活性和去除有机污染物。