Fabrication of PA6/TiO2/PANI composite nanofibers by electrospinning-electrospraying for ammonia sensor

被引：68

作者：

Pang, Zengyuan ^{[1
]}

Fu, Jiapeng ^{[1
]}

Luo, Lei ^{[1
]}

Huang, Fenglin ^{[1
]}

Wei, Qufu ^{[1
]}

机构：

[1] Jiangnan Univ, Key Lab Ecotext, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2014年 / 461卷

基金：

中国国家自然科学基金;

关键词：

PANI; TiO2; PA6; NH3; Gas sensor; POLYANILINE NANOFIBERS; CARBON NANOTUBE; NANOCOMPOSITE; SENSITIVITY; HUMIDITY;

D O I：

10.1016/j.colsurfa.2014.07.038

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：

Polyamide 6/titanium dioxide (PA6/TiO2) composite nanofibers were prepared as templates via electrospinning-electrospraying process, in which TiO2 nanoparticles were inserted into PA6 nanofibers mat, and then PA6/TiO2/polyaniline (PANI) composite nanofibers were fabricated by in-situ polymerization of aniline. Structural and morphological of the prepared composite nanofibers were carried out through scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Their abilities to detect ammonia were evaluated by a home-made test system. It was found that p-n junction was formed at the interface between PANI and TiO2. And due to the p-n junction, the PA6/TiO2/PANI composite nanofibers exhibited good reproducibility, selectivity and apparent improvement in response than that of PA6/PANI composite nanofibers. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：113 / 118

页数：6

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