Department of Chemistry, Northeast Normal University, Changchun, People's Republic of China.
J Hazard Mater. 2012 Jun 15;219-220:156-63. doi: 10.1016/j.jhazmat.2012.03.068. Epub 2012 Apr 3.
One-dimensional 2,9,16,23-tetra-nitrophthalocyanine iron(II) (TNFePc)/TiO(2) 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 TiO(2) nanofibers. And, the coverage density of the secondary TNFePc nanostructures could be controlled by adjusting the experimental parameters. Photocatalytic tests displayed that the H(2)O(2) assisted TNFePc/TiO(2) nanofiber heterostructures (TNFePc/TiO(2)-H(2)O(2)) possessed a much higher degradation rate of methyl orange than the pure TiO(2) and TNFePc/TiO(2) nanofiber without H(2)O(2) under visible light. Moreover, the TNFePc/TiO(2) nanofiber heterostructures could be easily recycled without the decrease of the photocatalytic activity due to their one-dimensional nanostructural property of TiO(2) nanofibers.
一维 2,9,16,23-四硝基酞菁铁(II)（TNFePc）/TiO2 纳米纤维异质结构通过静电纺丝技术和溶剂热工艺的简单组合成功获得。所得产物通过场发射扫描电子显微镜（FE-SEM）、能谱（EDX）、透射电子显微镜（TEM）、X 射线衍射（XRD）、X 射线光电子能谱（XPS）和红外光谱（IR）进行了表征。结果表明，TNFePc 纳米片成功地生长在初级 TiO2 纳米纤维上。并且，通过调整实验参数可以控制二次 TNFePc 纳米结构的覆盖密度。光催化测试表明，在可见光下，H2O2 辅助的 TNFePc/TiO2 纳米纤维异质结构（TNFePc/TiO2-H2O2）比纯 TiO2 和没有 H2O2 的 TNFePc/TiO2 纳米纤维具有更高的甲基橙降解率。此外，由于 TiO2 纳米纤维的一维纳米结构特性，TNFePc/TiO2 纳米纤维异质结构可以很容易地回收，而不会降低光催化活性。
