催化作用
降级(电信)
激进的
水溶液
微波食品加热
材料科学
化学工程
碳纳米管
光化学
羟基自由基
微波辐射
原位
化学
纳米技术
有机化学
工程类
物理
电信
量子力学
计算机科学
作者
Tianming Liu,Guobao Yuan,Guocheng Lv,Yuxin Li,Libing Liao,Siyao Qiu,Chenghua Sun
出处
期刊:Catalysts
[Multidisciplinary Digital Publishing Institute]
日期:2019-10-30
卷期号:9 (11): 911-911
被引量:12
摘要
Microwave-induced catalytic degradation (MICD) has been considered as one of the most prospective approaches to remove organic contaminants from water. High-performance catalysts, ideally offering efficient degradation ability, are essential to this process. This work reports the fabrication of manganese oxide on carbon nanotubes (MnO/CNTs) as an efficient catalyst under microwave irradiation (MI) to remove tetracycline (TC) from aqueous solution. The hybrid MnO/CNTs structure shows excellent performance in TC degradation. Combining experimental characterization and theoretical calculations, synergistic mechanisms are revealed: (i) Strong MnO/CNTs interaction stabilizes Mn(II) through interfacial bonding; (ii) high-spin states associated with low coordinated Mn(II) play a major role in MICD; and (iii) superoxide radicals (•O2−) and hydroxyl radicals (•OH) induced by microwave input are identified as the major active species.
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