Iron phthalocyanine/TiO₂ nanofiber heterostructures with enhanced visible photocatalytic activity assisted with H₂O₂

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• 作者：Zengcai Guo^a ; Bin Chen^a ; ^{chenb608@nenu.edu.cn} ; Jingbo Mu^a ; Mingyi Zhang^b ; Peng Zhang^b ; Zhenyi Zhang^b ; Jingfeng Wang^a ; Xin Zhang^b ; Yangyang Sun^b ; Changlu Shao^b ; ^{clshao@nenu.edu.cn} ; Yichun Liu^b
• 关键词：TiO2 ; Phthalocyanine ; H2O2 ; Nanofiber ; Photocatalysis
• 刊名：Journal of Hazardous Materials
• 出版年：2012
• 期刊代码：50_03043894
• 类别：ce
• 出版时间：15 June, 2012
• 卷：219-220
• 期：Complete
• 页码：156-163
• 文件大小：1612 K

摘要

One-dimensional 2,9,16,23-tetra-nitrophthalocyanine iron(II) (TNFePc)/TiO₂ nanofiber heterostructures have been successfully obtained by a simple combination of electrospinning technique and solvothermal process. The as-obtained products were characterized by field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and IR spectrum. The results revealed that the TNFePc nanosheets were successfully grown on the primary TiO₂ nanofibers. And, the coverage density of the secondary TNFePc nanostructures could be controlled by adjusting the experimental parameters. Photocatalytic tests displayed that the H₂O₂ assisted TNFePc/TiO₂ nanofiber heterostructures (TNFePc/TiO₂-H₂O₂) possessed a much higher degradation rate of methyl orange than the pure TiO₂ and TNFePc/TiO₂ nanofiber without H₂O₂ under visible light. Moreover, the TNFePc/TiO₂ nanofiber heterostructures could be easily recycled without the decrease of the photocatalytic activity due to their one-dimensional nanostructural property of TiO₂ nanofibers.