Preparation and characterization of In2O3/ZnO heterostructured microbelts by sol-gel combined with electrospinning method

摘要

Long and thin In2O3/ZnO heterostructured microbelts were synthesized by sol-gel combined with electrospinning process. The as-prepared microbelts show the weir defined one-dimensional belt structures with 1-5-urn in width and tens of millimeters in length. The polycrys-talline microbelts calcined at 973 K for 1 h are still continuous and have the uniform rectangular cross sections and the thickness to width ratio is around 1:10. The crystalline phases of samples are investigated by X-ray diffraction and the morphology is examined using transmission electron microscope and scanning electron microscope. In2O3/ZnO heterostructured microbelts exhibit the excellent visible photocatalytic property in the photo-degradation of methyl orange (MO), and over 94 % of MO was degraded within 3 h.