期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 339, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2023.123174
关键词
Transition metal dichalcogenides (TMDs); Nanocatalysts; MoSe2; MoS2; Nitroarene reduction
Two-dimensional MoSe2 nanosheets were found to have higher activity than MoS2 nanosheets as catalysts for nitroarene reduction in water treatment. Density functional theory (DFT) calculations revealed the reduction pathway on 2D MoSe2 and explained the selectivity displayed by the catalyst. The MoSe2 nanosheets were further coated with colloidal stabilizers and immobilized on polymer foam for practical application, showing no significant loss of activity after multiple catalytic cycles.
Two-dimensional (2D) MoSe2 nanosheets were investigated as a catalyst for nitroarene reduction in the context of water treatment and demonstrated to exhibit a higher activity than their more studied MoS2 counterpart. Density functional theory (DFT) calculations disclosed a feasible nitroarene reduction pathway on 2D MoSe2, which involved passivation of the active site by oxygen from the nitro group and its reactivation by a reducing hydride. DFT analysis also provided an explanation for the isomer selectivity displayed by the 2D MoSe2 catalyst (towards, e.g., 2-, 3-and 4-nitroaniline). To facilitate their practical implementation, the bare MoSe2 nanosheets were coated with colloidal stabilizers, and were also immobilized on polymer foam, where they could be re-used for several consecutive catalytic cycles with no significant loss of activity. Overall, the present results open the prospect of 2D transition metal dichalcogenides beyond MoS2 as competitive nanocatalysts for the reduction of nitroarenes and other organic compounds.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据