Investigation of the pH effect in hydrothermal growth of zinc oxide nanostructures
This study focuses on the influence of the pH value of hydrothermal solution on the morphology and the transmission spectrum of zinc oxide (ZnO) nanostructures using field-emission scanning electron microscope (FE-SEM) and ultraviolet-visible (UV-Vis) spectroscopy, respectively. The ZnO nanostruct...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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2020
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| Online Access: | http://eprints.uthm.edu.my/1017/1/J11903_bf8b848c39b100e6fb59572685eaa8f9.pdf |
| _version_ | 1796868367257174016 |
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| author | Zulkifli, Nor Ashikin Hasbullah, Nurul Eddahanie Ameruddin, Amira Saryati Awang, Noor Azura Ahmad, Mohd. Khairul |
| author_facet | Zulkifli, Nor Ashikin Hasbullah, Nurul Eddahanie Ameruddin, Amira Saryati Awang, Noor Azura Ahmad, Mohd. Khairul |
| author_sort | Zulkifli, Nor Ashikin |
| collection | UTHM |
| description | This study focuses on the influence of the pH value of hydrothermal solution on the morphology and
the transmission spectrum of zinc oxide (ZnO) nanostructures using field-emission scanning electron
microscope (FE-SEM) and ultraviolet-visible (UV-Vis) spectroscopy, respectively. The ZnO nanostructures
were grown on glass substrates at 90oC for 5 hours. The pH and the concentration of the starting solutions were
varied from 2.03 to 12.02 and 6 mM to 100 mM respectively. Various ZnO structures of neuron-like, flowerlike,
and urchin-like morphologies were obtained at alkaline pH (~8.00 to ~9.00) while for pH solution lower
than ~8.00, rod-like nanostructures were obtained. Solution of pH value <4.6 and >11.50 shows that growth of
nanostructures was suppressed due to the high susceptibility to erosion in both acidic and alkaline solutions. By
changing the concentrations of the solution, the density and size were also varied. The increase in concentration
lead to the increase of nanostructure density and the diameter of ZnO nanorods. The trend shows that the
concentration solution from lower (C < 6mM) to a higher concentration (C > 100mM) resulted ZnO
nanostructures such as nanorods to thick film due to overgrowth and coalescence of the nanostructures with
more available precursors. |
| first_indexed | 2024-03-05T21:38:47Z |
| format | Article |
| id | uthm.eprints-1017 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:38:47Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | uthm.eprints-10172021-10-17T07:25:30Z http://eprints.uthm.edu.my/1017/ Investigation of the pH effect in hydrothermal growth of zinc oxide nanostructures Zulkifli, Nor Ashikin Hasbullah, Nurul Eddahanie Ameruddin, Amira Saryati Awang, Noor Azura Ahmad, Mohd. Khairul TP155-156 Chemical engineering This study focuses on the influence of the pH value of hydrothermal solution on the morphology and the transmission spectrum of zinc oxide (ZnO) nanostructures using field-emission scanning electron microscope (FE-SEM) and ultraviolet-visible (UV-Vis) spectroscopy, respectively. The ZnO nanostructures were grown on glass substrates at 90oC for 5 hours. The pH and the concentration of the starting solutions were varied from 2.03 to 12.02 and 6 mM to 100 mM respectively. Various ZnO structures of neuron-like, flowerlike, and urchin-like morphologies were obtained at alkaline pH (~8.00 to ~9.00) while for pH solution lower than ~8.00, rod-like nanostructures were obtained. Solution of pH value <4.6 and >11.50 shows that growth of nanostructures was suppressed due to the high susceptibility to erosion in both acidic and alkaline solutions. By changing the concentrations of the solution, the density and size were also varied. The increase in concentration lead to the increase of nanostructure density and the diameter of ZnO nanorods. The trend shows that the concentration solution from lower (C < 6mM) to a higher concentration (C > 100mM) resulted ZnO nanostructures such as nanorods to thick film due to overgrowth and coalescence of the nanostructures with more available precursors. 2020 Article PeerReviewed text en http://eprints.uthm.edu.my/1017/1/J11903_bf8b848c39b100e6fb59572685eaa8f9.pdf Zulkifli, Nor Ashikin and Hasbullah, Nurul Eddahanie and Ameruddin, Amira Saryati and Awang, Noor Azura and Ahmad, Mohd. Khairul (2020) Investigation of the pH effect in hydrothermal growth of zinc oxide nanostructures. Journal of advance research in dynamical & control systems, 12 (2). pp. 804-808. https://doi.org/10.5373/JARDCS/V12SP2/SP20201135 |
| spellingShingle | TP155-156 Chemical engineering Zulkifli, Nor Ashikin Hasbullah, Nurul Eddahanie Ameruddin, Amira Saryati Awang, Noor Azura Ahmad, Mohd. Khairul Investigation of the pH effect in hydrothermal growth of zinc oxide nanostructures |
| title | Investigation of the pH effect in hydrothermal growth of zinc oxide
nanostructures |
| title_full | Investigation of the pH effect in hydrothermal growth of zinc oxide
nanostructures |
| title_fullStr | Investigation of the pH effect in hydrothermal growth of zinc oxide
nanostructures |
| title_full_unstemmed | Investigation of the pH effect in hydrothermal growth of zinc oxide
nanostructures |
| title_short | Investigation of the pH effect in hydrothermal growth of zinc oxide
nanostructures |
| title_sort | investigation of the ph effect in hydrothermal growth of zinc oxide nanostructures |
| topic | TP155-156 Chemical engineering |
| url | http://eprints.uthm.edu.my/1017/1/J11903_bf8b848c39b100e6fb59572685eaa8f9.pdf |
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