Synthesis and Photocatalytic Performance of Heterostructured Nano-Composite Bi4Ti3O12/TiO2

doi:10.11901/1005.3093.2013.942

Chinese Journal of Materials Research

2014, Vol. 28

Issue (7): 503-508 DOI: 10.11901/1005.3093.2013.942

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Synthesis and Photocatalytic Performance of Heterostructured Nano-Composite Bi₄Ti₃O₁₂/TiO₂

Kansong CHEN^1,^2,^**(

),Yang LI^1,²,Han TIAN^1,²,Haoshuang GU^1,²

1. School of Computer Science and Information Engineering, Hubei University, Wu Han 430062
2. Hubei Collaborative Innovation Center for Advanced Organic Chemical Material, Wu Han 430062

Cite this article:

Kansong CHEN,Yang LI,Han TIAN,Haoshuang GU. Synthesis and Photocatalytic Performance of Heterostructured Nano-Composite Bi₄Ti₃O₁₂/TiO₂. Chinese Journal of Materials Research, 2014, 28(7): 503-508.

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Abstract

Heterostructured nano-composite Bi₄Ti₃O₁₂/TiO₂was synthesized by a two step process, i.e. the nano-rods TiO₂were prepared by electrospinning technique and then the nano Bi₄Ti₃O₁₂was grew on the nano-rods TiO₂by a hydrothermal process. Scanning and transmission electron microscopy observation proves that the as-synthesized nano-composite is consisted of nano-rods TiO₂ decorated with nanostructured Bi₄Ti₃O₁₂. In comparison with the nano-rods TiO₂, a slight red-shift on the UV-Vis absorption spectra and a decrease of the emission peak intensity on the photoluminescence spectra could be observed for the as-synthesized nano-composite. The heterostructured nano-composite Bi₄Ti₃O₁₂/TiO₂ exhibited stronger photocatalytic activity in the decomposition of MO under visible light rather than the blank nano-rods TiO₂. The photocatalytic performance would be further enhanced with the increase of the content of the heterostructured nano-composite Bi₄Ti₃O₁₂/TiO₂ in the synthesized product.

Key words: inorganic non-metallic materials heterostructure Bi₄Ti₃O₁₂ electrospinning technique TiO₂ photocatalytic

Received: 12 December 2013

Fund: *Supported by National Natural Science Foundation of China No. 11274103, and Key Project of Education Bureau of Hubei Province of China No. D20111003.

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	Kansong CHEN
	Yang LI
	Han TIAN
	Haoshuang GU

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https://www.cjmr.org/EN/10.11901/1005.3093.2013.942 OR https://www.cjmr.org/EN/Y2014/V28/I7/503

Fig.1 XRD patterns of (a) TiO₂ nanorods and (b) BTO-EF3

Fig.2 SEM images of (a) TiO₂ nanorods, (b) BTO-EF1, (c) BTO-EF2 and (d) BTO-EF3

Fig.3 TEM images of BTO-EF3 at (a) low magnification (b) high magnification (c) EDS images of BTO-EF3

Fig.4 UV-visible diffuse reflectance spectra (a) and the relationship between (αhn)^1/2and photon energy (b) of different sample

Fig.5 不同样品的光致发光图谱和降解甲基橙的降解曲线

Fig.6 Schematic diagram for photocatalytic performance of Bi₄Ti₃O₁₂/TiO₂heterostructure

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