Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures
In this study honeycomb-like NiO nanostructures were grown on nickel foam by a simple hydrothermal growth method. The NiO nanostructures were characterized by field emission electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) techniques....
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-11-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/12/11/15424 |
| _version_ | 1818033342060167168 |
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| author | Magnus Willander Omer Nur Azam Khan Yaqoob Khan Mushtaque Hussain Zafar Hussain Ibupoto Mazhar Ali Abbasi |
| author_facet | Magnus Willander Omer Nur Azam Khan Yaqoob Khan Mushtaque Hussain Zafar Hussain Ibupoto Mazhar Ali Abbasi |
| author_sort | Magnus Willander |
| collection | DOAJ |
| description | In this study honeycomb-like NiO nanostructures were grown on nickel foam by a simple hydrothermal growth method. The NiO nanostructures were characterized by field emission electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) techniques. The characterized NiO nanostructures were uniform, dense and polycrystalline in the crystal phase. In addition to this, the NiO nanostructures were used in the development of a zinc ion sensor electrode by functionalization with the highly selective zinc ion ionophore 12-crown-4. The developed zinc ion sensor electrode has shown a good linear potentiometric response for a wide range of zinc ion concentrations, ranging from 0.001 mM to 100 mM, with sensitivity of 36 mV/decade. The detection limit of the present zinc ion sensor was found to be 0.0005 mM and it also displays a fast response time of less than 10 s. The proposed zinc ion sensor electrode has also shown good reproducibility, repeatability, storage stability and selectivity. The zinc ion sensor based on the functionalized NiO nanostructures was also used as indicator electrode in potentiometric titrations and it has demonstrated an acceptable stoichiometric relationship for the determination of zinc ion in unknown samples. The NiO nanostructures-based zinc ion sensor has potential for analysing zinc ion in various industrial, clinical and other real samples. |
| first_indexed | 2024-12-10T06:21:44Z |
| format | Article |
| id | doaj.art-1cba3a764a2f4bdf8eb1a29ffc10e625 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T06:21:44Z |
| publishDate | 2012-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1cba3a764a2f4bdf8eb1a29ffc10e6252022-12-22T01:59:19ZengMDPI AGSensors1424-82202012-11-011211154241543710.3390/s121115424Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO NanostructuresMagnus WillanderOmer NurAzam KhanYaqoob KhanMushtaque HussainZafar Hussain IbupotoMazhar Ali AbbasiIn this study honeycomb-like NiO nanostructures were grown on nickel foam by a simple hydrothermal growth method. The NiO nanostructures were characterized by field emission electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) techniques. The characterized NiO nanostructures were uniform, dense and polycrystalline in the crystal phase. In addition to this, the NiO nanostructures were used in the development of a zinc ion sensor electrode by functionalization with the highly selective zinc ion ionophore 12-crown-4. The developed zinc ion sensor electrode has shown a good linear potentiometric response for a wide range of zinc ion concentrations, ranging from 0.001 mM to 100 mM, with sensitivity of 36 mV/decade. The detection limit of the present zinc ion sensor was found to be 0.0005 mM and it also displays a fast response time of less than 10 s. The proposed zinc ion sensor electrode has also shown good reproducibility, repeatability, storage stability and selectivity. The zinc ion sensor based on the functionalized NiO nanostructures was also used as indicator electrode in potentiometric titrations and it has demonstrated an acceptable stoichiometric relationship for the determination of zinc ion in unknown samples. The NiO nanostructures-based zinc ion sensor has potential for analysing zinc ion in various industrial, clinical and other real samples.http://www.mdpi.com/1424-8220/12/11/15424honeycomb NiO nanostructurespotentiometric responseion selective electrodeselectivityselective ionophore |
| spellingShingle | Magnus Willander Omer Nur Azam Khan Yaqoob Khan Mushtaque Hussain Zafar Hussain Ibupoto Mazhar Ali Abbasi Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures Sensors honeycomb NiO nanostructures potentiometric response ion selective electrode selectivity selective ionophore |
| title | Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures |
| title_full | Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures |
| title_fullStr | Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures |
| title_full_unstemmed | Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures |
| title_short | Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures |
| title_sort | potentiometric zinc ion sensor based on honeycomb like nio nanostructures |
| topic | honeycomb NiO nanostructures potentiometric response ion selective electrode selectivity selective ionophore |
| url | http://www.mdpi.com/1424-8220/12/11/15424 |
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