Synthesis and characterization of photoconducting polyaniline-TiO2 nanocomposite

被引：176
作者：
Feng, W
Sun, EH
Fujii, A
Wu, HC
Niihara, K
Yoshino, K
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Elect Engn, Suita, Osaka 5650871, Japan
[2] Xian Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China
[3] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2000年 / 73卷 / 11期
关键词：
D O I：
10.1246/bcsj.73.2627
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A composite of polyaniline (PANI) encapsulating titanium oxide (TiO2) with nanometer size has been synthesized by in-situ emulsion polymerization. Particle dimensions have been measured and the nature of the association between the components have been observed using SEM and TEM techniques. The interaction between PANI and TiO2 and the nature of chain growth have been investigated and explained according to the results of FTIR. The improvement of thermal stability and crystallinity of nanocomposites have been evaluated by using TGA and XRD. The mechanism of charge transport in these composites has also been studied by measuring the DC conductivity of all samples and the temperature-conductivity relation. The photoconductivity of PANI-TiO2 composite has been enhanced markedly. This effect is discussed by taking the photoinduced charge transfer between PANI and TiO2 into consideration.
引用
收藏
页码：2627 / 2633
页数：7
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