材料科学
石墨烯
氧化还原
对偶(语法数字)
兴奋剂
纳米技术
光电子学
冶金
文学类
艺术
作者
Meilan Pan,Subiao Liu,Jia Wei Chew
出处
期刊:Nano Energy
[Elsevier]
日期:2020-02-01
卷期号:68: 104366-104366
被引量:52
标识
DOI:10.1016/j.nanoen.2019.104366
摘要
Abstract The need for highly efficient and environmentally friendly catalysts for pollutants removal sustainably has drawn extensive attention. In particular, piezocatalysis is promising for harnessing low-frequency vibration (e.g., wind) to enable high-performance degradation of organic pollutants. Herein, we synthesized a sandwich-like piezocatalyst by fabricating MoS2 nanosheets onto S, N-codoped graphene (MoS2@SNG) through a facile hydrothermal strategy. Results indicate that the MoS2@SNG exhibited ultrahigh piezocatalytic activities for both oxidation and reduction degradation of pollutants. Benefiting from the reduced stacking of MoS2 nanosheets and accelerated electron transfer of heterogeneous graphene, MoS2@SNG had a sharply enhanced electric field (i.e., 29.3 mV of MoS2@SNG versus 4.7 mV of MoS2). Moreover, the abundance of active sites of Mo4+ being exposed over MoS2@SNG remarkably promoted the redox reaction. This study provided evidence that layered piezoelectric materials represent an attractive strategy for environmental remediation.
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