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Erschienen in: Microsystem Technologies 2/2017

22.12.2016 | Technical Paper

Nanofiber-based brush-distributed sensor for detecting heavy metal ions

verfasst von: Hsing-Cheng Chang, Yu-Liang Hsu, Cheng-Yan Tsai, Ya-Hui Chen, Shyan-Lung Lin

Erschienen in: Microsystem Technologies | Ausgabe 2/2017

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Abstract

A brush-distributed metal oxidation sensing nanostructure is developed by growing zinc oxide (ZnO) nanorods on electrospun titanium dioxide (TiO2) nanofibers to improve ions adsorption of lead and copper. A pair of inductive plane coils are designed to measure inductive variation induced by the adsorbed ion concentration. The brush-distributed ZnO–TiO2 nanofibers are fabricated by using electrospinning and hydrothermal methods that are deposited on the PVDF-formed nanofiber membrane to enhance copper and lead ions adsorption efficiency. The sensitivity has been promoted based on the van der Waals force and produced hydroxyl from grown surface nanorods. The TiO2 structure was examined by checking XRD patterns. These diffraction peaks are indexed as the (101), (004), (200), and (105) of anatase TiO2 and are consistent with the standard data (JCPDS No. 78-2486). The circular coils are designed and simulated using the finite element method to sense metal ions by measuring concentration-dependent magnetic flux variation. The developed ZnO–TiO2 ion sensing composites include the following advantages: simple fabrication process, low cost, high selectivity, highly effective adsorption, specific surface area and porosity, rapid response, and good repeatability and reproducibility.

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Metadaten
Titel
Nanofiber-based brush-distributed sensor for detecting heavy metal ions
verfasst von
Hsing-Cheng Chang
Yu-Liang Hsu
Cheng-Yan Tsai
Ya-Hui Chen
Shyan-Lung Lin
Publikationsdatum
22.12.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Microsystem Technologies / Ausgabe 2/2017
Print ISSN: 0946-7076
Elektronische ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-016-3231-6

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