化学
吸附
单晶
催化作用
Atom(片上系统)
反应速率常数
晶体结构
化学反应
惰性
反应性(心理学)
光化学
结晶学
物理化学
动力学
有机化学
替代医学
病理
嵌入式系统
物理
医学
量子力学
生物化学
计算机科学
作者
Yibing Sun,Ruiping Li,Chunli Song,Hao Zhang,Yingchun Cheng,Anmin Nie,Hongchao Li,Dionysios D. Dionysiou,Jieshu Qian,Bingcai Pan
标识
DOI:10.1016/j.apcatb.2021.120537
摘要
In this study, we describe a confinement of trace amount of Fe atoms (0.66 at. ‰) in Mo lattice, via a chemical vapor transport growth of MoS2 single crystal. In the Fenton-like reaction for the degradation of atrazine, the [email protected]2 as catalyst to activate PMS could produce more reactive oxygen species and exhibit a rate constant (1.30 min−1) three times higher than that of pristine MoS2 (0.43 min−1). Theoretical simulation suggests that the diluted confinement of Fe atoms in Mo sites activates the inert basal plane of MoS2, creating new active sites of Mo both nearby the Fe site and afar, for the adsorption and decomposition of PMS. Our work provides a clear atomic mechanism of the improvement of the chemical reactivity of MoS2 single crystal in Fenton-like reaction via heteroatom confinement.
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