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Acta Physico-Chimica Sinica  2007, Vol. 23 Issue (06): 856-860    DOI: 10.3866/PKU.WHXB20070612
Article     
Synthesis and Characterization of TiO2 Nano-crystalline with Different Morphologies by Low-temperature Hydrothermal Method
ZHANG Xia; ZHAO Yan; ZHANG Cai-Bei; MENG Hao

School of Science, Northeastern University, Shenyang 110004, P. R. China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China

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Abstract  

Oleic acid was used in low-temperature hydrothermal reaction of tetrabutyl titanate (TBOT) to control the growth direction of TiO2 particles. TiO2 nano-crystallines in the shapes of needle and spindle were synthesized. The morphology and structure of these TiO2 particles were confirmed by means of TEM and XRD. The FT-IR spectrum analysis proved that oleic acid molecule was absorbed onto the surface of TiO2 particles through electrostatic interaction. The band-gap energies of TiO2 nano-crystallines were calculated according to their UV-Vis spectra. In the photocatalytic reaction, the spindle TiO2 particles showed higher activity, and 90% rhodanmine B was degraded in 60 min.



Key wordsTiO2 nano-crystalline      Needle      Spindle      Photocatalysis     
Received: 20 November 2006      Published: 28 April 2007
MSC2000:  O643  
Corresponding Authors: ZHANG Xia     E-mail: zhangxia@imr.ac.cn
Cite this article:

ZHANG Xia; ZHAO Yan; ZHANG Cai-Bei; MENG Hao. Synthesis and Characterization of TiO2 Nano-crystalline with Different Morphologies by Low-temperature Hydrothermal Method. Acta Physico-Chimica Sinica, 2007, 23(06): 856-860.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20070612     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2007/V23/I06/856

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