Fabrication and Enhanced Photocatalytic Properties of Heterostructures SnO2/TiO2 Composite Nanofibers

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (4): 822.

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Fabrication and Enhanced Photocatalytic Properties of Heterostructures SnO2/TiO2 Composite Nanofibers

LI Yue-Jun^1,2, CAO Tie-Ping^1,2, WANG Chang-Hua¹, SHAO Chang-Lu^1*

1. Centre for Advanced Optoelectronic Functional Material Research, Northeast Normal University, Changchun 130024, China;
2. Department of Chemistry, Baicheng Normal College, Baicheng 137000, China

Received:2010-08-20 Revised:2010-11-24 Online:2011-04-10 Published:2011-03-09
Contact: SHAO Chang-Lu E-mail:bclyj@yahoo.com.cn
Supported by:
教育部新世纪优秀人才支持计划(批准号: NCET-05-0322)和国家自然科学基金(批准号: 50572014, 50972027)资助.

Abstract

Abstract: Heterostructured SnO2/TiO2 composite nanofibers were prepared via (1) electrospinning fabrication of anatase nanofibers by adopting Polyvinylpyrrolidone (PVP) and n-butyl titanate as precursors and (2) hydrothermal growth of SnO2 nanostructures on anatase nanofibers substrate. The morphology and structure of SnO2/TiO2 composite nanofibers were characterized by scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD) analysis. The results showed that SnO2 nanoparticles could evenly grow on the TiO2 nanofibers surface and thus heterostructured SnO2/TiO2 composite materials were successfully obtained. By employing rhodamine B degradation as the model reaction, we found that the SnO2/TiO2 heterostructures showed enhanced photocatalytic efficiency compared with the bare TiO2 nanofibers under UV light irradiation. Last, the mechanism for the enhancement of photocatalytic activity of heterostructured nanofibers was discussed.

Key words: SnO2/TiO2 composite nanofibers, Electrospinning technique, Hydrothermal method, Photocatalytic degradation, Controlled synthesis

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LI Yue-Jun, CAO Tie-Ping, WANG Chang-Hua, SHAO Chang-Lu*. Fabrication and Enhanced Photocatalytic Properties of Heterostructures SnO2/TiO2 Composite Nanofibers[J]. Chem. J. Chinese Universities, 2011, 32(4): 822.

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Fabrication and Enhanced Photocatalytic Properties of Heterostructures SnO2/TiO2 Composite Nanofibers

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