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Humidity sensing properties of ZnO-based fibers by electrospinning
- Source :
- Talanta. 85(2)
- Publication Year :
- 2011
-
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 2 h 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.<br />TÜBİTAK project number TBAG 109T240; İYTE Scientific Research Project with project number 2008IYTE31
- Subjects :
- Nanofibers
chemistry.chemical_element
Zinc
Polyvinyl alcohol
Analytical Chemistry
law.invention
chemistry.chemical_compound
Adsorption
law
Polymer chemistry
Zinc oxide
Nanotechnology
Calcination
Relative humidity
Fiber
Sensor
Electrospinning
Chemistry
Humidity
Quartz crystal microbalance
Acoustics
Models, Theoretical
Kinetics
Chemical engineering
Quartz Crystal Microbalance Techniques
Zinc Oxide
Subjects
Details
- ISSN :
- 18733573
- Volume :
- 85
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Talanta
- Accession number :
- edsair.doi.dedup.....a1a83fe036378c098edc8081eb28d6c2