Tailoring the structure and energy level over transition-metal doped MoS2towards enhancing 4-nitrophenol reduction reaction

Shan Ni, Liangrong Yang, Hongnan Qu, Xiangyang Zhu, Zihao Xu, Menglei Yuan, Huifang Xing, Li Wang, Jiemiao Yu, Huizhou Liu

科研成果: 期刊稿件文章同行评审

40 引用 (Scopus)

摘要

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.

源语言英语
文章编号105101
期刊Journal of Environmental Chemical Engineering
9
2
DOI
出版状态已出版 - 4月 2021
已对外发布

指纹

探究 'Tailoring the structure and energy level over transition-metal doped MoS2towards enhancing 4-nitrophenol reduction reaction' 的科研主题。它们共同构成独一无二的指纹。

引用此