Fabrication and characterization of electrospun TiO2/CuS micro–nano-scaled composite fibers
2012; Elsevier BV; Volume: 22; Issue: 1 Linguagem: Inglês
10.1016/j.pnsc.2011.12.010
ISSN1745-5391
Autores Tópico(s)TiO2 Photocatalysis and Solar Cells
ResumoA process to fabricate a kind of novel micro–nano scaled TiO2/CuS composite fibers by electrospinning technique and chemical precipitation method was developed in the present study. The microstructures and photoelectronic properties of the fibers were characterized using SEM, FT-IR, UV–vis and fluorescence spectroscopy. The results revealed that the TiO2 portion in the composite fibers was a mixture rutile and anatase phases while TiO2 and CuS had been fully composite. The fibers had smooth surface with a diameter of 50–300 nm. Comparing with pure TiO2 fiber, the TiO2/CuS micro–nano-scaled composite fibers exhibited a strong absorption in the visible light region and the efficiency of photo-induced charge separation were enhanced. This composite system is of widely potential applications in the areas such as solar cells, supercapacity, photocatalysis, etc.
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