Enhanced photocatalytic property of BiFeO₃/N-doped graphene composites and mechanism insight

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• 作者：Pai Li ; Lei Li ; Maji Xu ; Qiang Chen ; Yunbin He ; ^{ybhe@hubu.edu.cn} ; ^{yunbin.he@physik.uni-giessen.de}
• 关键词：BiFeO3 ; N-doped graphene ; Band bending ; Photocatalytic activity
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：28 February 2017
• 年：2017
• 卷：396
• 期：Complete
• 页码：879-887
• 全文大小：3704 K
• 卷排序：396

文摘

A hydrothermal process was used to prepare BiFeO3/N-doped graphene composites. BiFeO3/N-doped graphene exhibits superior photocatalytic activity and stability. The energy band of BiFeO3 bends downward by ∼1.0 eV at the composite interface. Downward band bending leads to rapid electron transfer at the composite interface. Holes and OH are predominant active species in the photo-degradation process.