Ammonia Sensing Behaviors of TiO2-PANI/PA6 Composite Nanofibers

Sensors

Qingqing Wang²  Xianjun Dong²  Zengyuan Pang²  Yuanzhi Du²  Xin Xia²  Qufu Wei¹ 

[1] Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, Jiangsu, China;

关键词: electrospinning;    sputtering;    nanofiber;    sensor;   

DOI  :  10.3390/s121217046

来源: mdpi

【 摘 要 】

Titanium dioxide-polyaniline/polyamide 6 (TiO₂-PANI/PA6) composite nanofibers were prepared by in situ polymerization of aniline in the presence of PA6 nanofibers and a sputtering-deposition process with a high purity titanium sputtering target. TiO₂-PANI/PA6 composite nanofibers and PANI/PA6 composite nanofibers were fabricated for ammonia gas sensing. The ammonia sensing behaviors of the sensors were examined at room temperature. All the results indicated that the ammonia sensing property of TiO₂-PANI/PA6 composite nanofibers was superior to that of PANI/PA6 composite nanofibers. TiO₂-PANI/PA6 composite nanofibers had good selectivity to ammonia. It was also found that the content of TiO₂ had a great influence on both the morphology and the sensing property of TiO₂-PANI/PA6 composite nanofibers.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland