Novel ternary g-C3N4/Fe3O4/MnWO4 nanocomposites: Synthesis, characterization, and visible-light photocatalytic performance for environmental purposes

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2018,（9）
• 页码范围: 1638-1651
• 页数: 14页
• 语种: 英文

摘要

The g-C3 N4/Fe3O4/MnWO4 nanocomposites were prepared by a refluxing-calcination procedure.Visible light-induced photocatalytic experiments showed that the g-C3 N4/Fe3O4/MnWO4 (10％) nanocomposite has excellent ability to degrade a range of contaminants including rhodamine B,methylene blue,methyl orange,and fuchsine,which is about 7,10,25,and 31 times of the g-C3N4 photocatalyst,respectively.Reactive species trapping experiments revealed that superoxide anion radicals play major role in the photodegradation reaction of rhodamine B (RhB).After the treatment process,the utilized photocatalyst was magnetically recovered and reused with negligible loss in the photocatalytic activity,which is vital in the photocatalytic processes.Finally,a mechanism was proposed for the enhanced interfacial carrier separation and transfer and the improved photocatalytic performance.