Calix[4]pyrrole-decorated carbon nanotubes on paper for sensing acetone vapor


Baysak E. , Yuvayapan S. , Aydoğan A. , Hızal G.

SENSORS AND ACTUATORS B-CHEMICAL, cilt.258, ss.484-491, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 258
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.snb.2017.11.133
  • Dergi Adı: SENSORS AND ACTUATORS B-CHEMICAL
  • Sayfa Sayıları: ss.484-491

Özet

Noncovalent side-wall functionalization of SWCNT with a pyrene bearing calix[4] pyrrole is reported. The modified SWCNT has been characterized by scanning electron microscopy, electron dispersive spectroscopy, and thermogravimetric analysis. This calix[4] pyrrole-decorated SWCNT based sensor was implemented on filter paper. The resistance change of SWCNT network upon VOC exposure was monitored in the chemiresistors approach. The calix[4] pyrrole-decorated SWCNT sensor on filter paper was found to show fast and selective sensing of acetone when compared with pristine SWCNT-on-paper sensor due to the binding of acetone by calix[4] pyrrole molecules. The sensor showed logarithmic response toward acetone in a concentration range between 20-500 ppm. (c) 2017 Elsevier B.V. All rights reserved.