Exploring high-efficiency, robust and cost-effective catalysts for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) is greatly desirable. Herein, a series of transition-metal doped MoS₂ (M-MoS₂, M = Mn, Fe, Co, Ni, Cu, Zn) with expanded interlayer spacing are fabricated by one-step solvothermal strategy. Notably, nickel doped molybdenum disulfide (Ni-MoS₂) is found to exhibit prominent catalytic activity with an apparent rate constant (K) of 1.09 min^-1 and excellent stability over six continuous runs of recycling experiments. The results demonstrate that the expanded interlayer spacing (0.94 nm) can increase the active sites of reactant absorption, and Ni dopants can lower the energy level (d‐band center) to facilitate the desorption of H. Thus, the catalytic activity of Ni-MoS₂ is enhanced by synergistically structural and energy level modulation. This study offers an effective strategy to design transition metal sulfides with higher catalytic reactivity for the environment-related catalysis processes.

探索用于将4-硝基苯酚（4-NP）还原为4-氨基苯酚（4-AP）的高效，耐用且经济高效的催化剂。本文通过一步溶剂热法制备了一系列过渡金属掺杂的MoS ₂（M-MoS ₂，M = Mn，Fe，Co，Ni，Cu，Zn），层间间距增大。值得注意的是，发现掺杂镍的二硫化钼（Ni-MoS ₂）具有明显的催化活性，表观速率常数（K）为1.09 min ^-1在连续六次循环利用实验中具有出色的稳定性。结果表明，扩大的层间间距（0.94 nm）可以增加反应物吸收的活性位，而Ni掺杂物可以降低能级（d-带中心）以促进H的解吸。因此，Ni-的催化活性MoS ₂通过协同结构和能级调制得到增强。这项研究为设计与环境有关的催化过程具有更高催化反应性的过渡金属硫化物提供了有效的策略。