Synthesis and characterization of TiO2 nano-crystalline with different morphologies by low-temperature hydrothermal method

被引：3
|
作者：
Zhang Xia [1 ]
Zhao Yan
Zhang Cai-Bei
Meng Hao
机构：
[1] Northeastern Univ, Sch Sci, Shenyang 110004, Peoples R China
[2] Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2007年 / 23卷 / 06期
关键词：
TiO2; nano-crystalline; needle; spindle; photocatalysis;
D O I：
10.3866/PKU.WHXB20070612
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 Fr-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.
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收藏
页码：856 / 860
页数：5
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