材料科学
兴奋剂
掺杂剂
催化作用
罗丹明B
电子顺磁共振
降级(电信)
分析化学(期刊)
化学工程
纳米技术
化学
光电子学
色谱法
电子工程
核磁共振
光催化
有机化学
物理
工程类
作者
D. J. Kong,Rong Wu,Yutong Chen,Jianyong Yue,Chen Zhang
摘要
In this study, N-doped few-layer MoS2 piezocatalysts were successfully prepared by a one-pot hydrothermal method with urea as a nitrogen source. Benefiting from the optimized proportion of minority layers at edge positions and higher conductivity by N doping, the optimal N-doped few-layer MoS2 (120 mg of added urea) sample showed the optimal piezocatalytic activity for Rhodamine B (RhB) and levofloxacin (LEV), reaching 84.6 and 73.1% with the reaction kinetic rate constant of 0.020 86 and 0.017 05 min−1, respectively. In addition, the generation of superoxide radicals (·O2−) from the 120-MoS2 sample was determined to be greater than that from the 0-MoS2 sample in the piezocatalyst process by free radical scavenging experiments and electron paramagnetic resonance tests. Based on experimental data, a potential mechanism has been proposed to explain the enhanced piezocatalyst performance of N-doped few-layer MoS2. This research sheds new light on the development of efficient, cost-effective MoS2 piezoelectric catalysts through the doping of non-metallic dopants.
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