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

Synthesis and Characterization of TiO₂ Nano-crystalline with Different Morphologies by Low-temperature Hydrothermal Method

1.

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

Received Date: 20 November 2006
Available Online: 28 April 2007

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.
- TiO2 nano-crystalline; Needle; Spindle; Photocatalysis
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沈阳化工大学材料科学与工程学院沈阳 110142

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Synthesis and Characterization of TiO2 Nano-crystalline with Different Morphologies by Low-temperature Hydrothermal Method

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通讯作者: 陈斌, bchen63@163.com

Synthesis and Characterization of TiO₂ Nano-crystalline with Different Morphologies by Low-temperature Hydrothermal Method