Humidity sensing properties of ZnO-based fibers by electrospinning

Nesrin Horzum; Didem Taşçioglu; Salih Okur; Mustafa M Demir

doi:10.1016/j.talanta.2011.05.031

Humidity sensing properties of ZnO-based fibers by electrospinning

Talanta. 2011 Aug 15;85(2):1105-11. doi: 10.1016/j.talanta.2011.05.031. Epub 2011 May 26.

Authors

Nesrin Horzum¹, Didem Taşçioglu, Salih Okur, Mustafa M Demir

Affiliation

¹ İzmir Institute of Technology, Faculty of Science, Department of Chemistry, 35430 İzmir, Turkey.

PMID: 21726745
DOI: 10.1016/j.talanta.2011.05.031

Abstract

Zinc oxide (ZnO) based fibers with a diameter of 80-100 nm were prepared by electrospinning. Polyvinyl alcohol (PVA) and zinc acetate dihydrate were dissolved in water and the polymer/salt solution was electrospun at 2.5 kV cm(-1). The resulting electrospun fibers were subjected to calcination at 500°C for 2h to obtain ZnO-based fibers. Humidity sensing properties of the fiber mats were investigated by quartz crystal microbalance (QCM) method and electrical measurements. The adsorption kinetics under constant relative humidity (RH) between 10% and 90% were explained using Langmuir adsorption model. Results of the measurements showed that ZnO-based fibers were found to be promising candidate for humidity sensing applications at room temperature.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acoustics
Adsorption
Humidity*
Kinetics
Models, Theoretical
Nanofibers / chemistry*
Nanotechnology / methods*
Quartz Crystal Microbalance Techniques
Zinc Oxide / chemistry*

Substances

Zinc Oxide