Journal of Textile Research ›› 2016, Vol. 37 ›› Issue (05): 6-10.

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Influence of precursors ratios on crystalline and photocatalytic performance of SnO2/TiO2 nanofibers

  

  • Received:2015-03-13 Revised:2015-08-24 Online:2016-05-15 Published:2016-05-10

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Abstract:

In order to improve the photocatalytic property of SnO2-based nano-materials, by means of adjusting the ratio between precursors of stannic chloride and tetrabutyltitanate, the SnO2/TiO2 composite nanofibers with different content of TiO2 doping were fabricated by adjusting the ratio between precursors of stannic?chloride and tetrabutyl titanate. The morphologies of composite nanofibers were observed by scanning electron microscope, the structures were characterized by X-ray diffractometer, and the photocatalytic activities were measured by the photocatalytic?degradation of methylene-blue?liquid.The study revealed that the surface of nanofibers appears smooth from rough, along with the transition of ratio between stannic?chloride and tetrabutyl titanate from 2.5:1 and 2:1 to 3:2. When the ratio of precursors is 3:2, the nanofibers showed both rutile titanium?dioxide and anatase titanium?dioxide phases besides rutile tin dioxide phase.Furthermore,the photocatalytic activity of SnO2/TiO2 composite nanofibers with precursors ratio of 3:2 achieved good result as degradation efficiency reached 79.5% after 10 min irradiation.

Key words: SnO2/TiO2 nanofiber, electrospinning, precursors ratio, crystalline, photocatalytic activity

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