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Soft-chemical method for fabrication of SnO–TiO2...
来自 : www.onacademic.com/detail/jour
发布时间：2021-03-25
Soft-chemical method for fabrication of SnO–TiO2 nanocomposites with enhanced photocatalytic activity Author: Yan, Qiwen Wang, Jingyu Han, Xijiang Liu, Zhihong
Journal: Journal of Materials Research
Issue Date: 2013
Abstract(summary):
The present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titanate and tin (II) chloride followed by acidic peptization of the hydrolysate under mild conditions. The procedure is simple and straightforward, from which a well-dispersed semitransparent hydrosol sample is obtained. The freestanding nanocrystallites observed in the as-prepared composite show diameters of 3-5 nm. TiO2 nanoparticles have almost entirely transformed into anatase phase, and the trace amounts of Sn in existence are mainly found in SnO crystals with tetragonal structure. The photocatalytic activity of the SnO-TiO2 composites is confirmed through the photodegradation of methyl blue dye under visible light irradiation (lambda > 420 nm). As a p-type semiconductor, the incorporated SnO effectively improves the photocatalytic activity of TiO2 through promoting the separation of photo-generated charge carriers, inhibiting their recombination, and facilitating the reduction of O-2 by the photo-generated electrons.
Page: 1862-1869
The present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titana...onAcademic ；Science；Technology；Medicine；researchThe present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titanate and tin (II) chloride followed by acidic peptization of the hydrolysate under mild conditions. The procedure is simple and straightforward, from which a well-dispersed semitransparent hydrosol sample is obtained. The freestanding nanocrystallites observed in the as-prepared composite show diameters of 3-5 nm. TiO2 nanoparticles have almost entirely transformed into anatase phase, and the trace amounts of Sn in existence are mainly found in SnO crystals with tetragonal structure. The photocatalytic activity of the SnO-TiO2 composites is confirmed through the photodegradation of methyl blue dye under visible light irradiation (lambda > 420 nm). As a p-type semiconductor, the incorporated SnO effectively improves the photocatalytic activity of TiO2 through promoting the separation of photo-generated charge carriers, inhibiting their recombination, and facilitating the reduction of O-2 by the photo-generated electrons.Soft
Journal: Journal of Materials Research
Issue Date: 2013
Abstract(summary):
The present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titanate and tin (II) chloride followed by acidic peptization of the hydrolysate under mild conditions. The procedure is simple and straightforward, from which a well-dispersed semitransparent hydrosol sample is obtained. The freestanding nanocrystallites observed in the as-prepared composite show diameters of 3-5 nm. TiO2 nanoparticles have almost entirely transformed into anatase phase, and the trace amounts of Sn in existence are mainly found in SnO crystals with tetragonal structure. The photocatalytic activity of the SnO-TiO2 composites is confirmed through the photodegradation of methyl blue dye under visible light irradiation (lambda > 420 nm). As a p-type semiconductor, the incorporated SnO effectively improves the photocatalytic activity of TiO2 through promoting the separation of photo-generated charge carriers, inhibiting their recombination, and facilitating the reduction of O-2 by the photo-generated electrons.
Page: 1862-1869
The present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titana...onAcademic ；Science；Technology；Medicine；researchThe present work reports a soft-chemical pathway for preparing SnO-TiO2 composite nanocrystallites as photocatalyst through co-hydrolysis of tetrabutyl titanate and tin (II) chloride followed by acidic peptization of the hydrolysate under mild conditions. The procedure is simple and straightforward, from which a well-dispersed semitransparent hydrosol sample is obtained. The freestanding nanocrystallites observed in the as-prepared composite show diameters of 3-5 nm. TiO2 nanoparticles have almost entirely transformed into anatase phase, and the trace amounts of Sn in existence are mainly found in SnO crystals with tetragonal structure. The photocatalytic activity of the SnO-TiO2 composites is confirmed through the photodegradation of methyl blue dye under visible light irradiation (lambda > 420 nm). As a p-type semiconductor, the incorporated SnO effectively improves the photocatalytic activity of TiO2 through promoting the separation of photo-generated charge carriers, inhibiting their recombination, and facilitating the reduction of O-2 by the photo-generated electrons.Soft
本文链接： http://chemicalsoft.immuno-online.com/view-728152.html
发布于 ： 2021-03-25
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