Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method
Nanostructured zinc oxide (ZnO) was synthesized via a sonochemical method. The effect of the duration of ultrasonic irradiation in a continuous mode on the generated particles was investigated. Additionally, the effect of flowing either air or nitrogen during the sonication process was investiga...
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| Format: | Article |
| Language: | English |
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Universitas Indonesia
2016-10-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | http://ijtech.eng.ui.ac.id/article/view/332 |
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| author | W. Widiyastuti Siti Machmudah Tantular Nurtono Sugeng Winardi |
| author_facet | W. Widiyastuti Siti Machmudah Tantular Nurtono Sugeng Winardi |
| author_sort | W. Widiyastuti |
| collection | DOAJ |
| description | Nanostructured zinc oxide (ZnO) was
synthesized via a sonochemical method. The effect of the duration of ultrasonic
irradiation in a continuous mode on the generated particles was investigated.
Additionally, the effect of flowing either air or nitrogen during the
sonication process was investigated. Zinc nitrate and ammonia water-based
solutions were selected as chemicals without the addition of other surfactants.
The generated particles indicated that a wurtzite structure of ZnO in a
hexagonal phase was formed with a crystalline size that increased as the
ultrasound irradiation time increased. The morphology of the generated ZnO
particles could be changed from flowerlike to needlelike structures via
continuous ultrasound irradiation over one to two hours, resulting in increases
in the particle lengths and decreases in the particle diameters from 200 to 80
nm. Photoluminescence intensity was also increased with increases in the ultrasonic
irradiation times. Photoluminescence spectra were also influenced by the
atmospheric environment. Two bands centered at 390 and 500 nm were generated
under a nitrogen environment. On the other hand, a single wide band with a peak
at around 430 nm was found for particles generated under an air environment. It
can be applied for light emitting diodes (LED) or laser fabrication with a
controlled emitting band. |
| first_indexed | 2024-04-11T02:46:45Z |
| format | Article |
| id | doaj.art-96214795c12e4dca835dbf02086d8d7b |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-04-11T02:46:45Z |
| publishDate | 2016-10-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-96214795c12e4dca835dbf02086d8d7b2023-01-02T17:52:59ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002016-10-017698198810.14716/ijtech.v7i6.332332Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical MethodW. Widiyastuti0Siti Machmudah1Tantular Nurtono2Sugeng Winardi3Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Surabaya, IndonesiaDepartment of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Surabaya, IndonesiaDepartment of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Surabaya, IndonesiaDepartment of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111, Surabaya, IndonesiaNanostructured zinc oxide (ZnO) was synthesized via a sonochemical method. The effect of the duration of ultrasonic irradiation in a continuous mode on the generated particles was investigated. Additionally, the effect of flowing either air or nitrogen during the sonication process was investigated. Zinc nitrate and ammonia water-based solutions were selected as chemicals without the addition of other surfactants. The generated particles indicated that a wurtzite structure of ZnO in a hexagonal phase was formed with a crystalline size that increased as the ultrasound irradiation time increased. The morphology of the generated ZnO particles could be changed from flowerlike to needlelike structures via continuous ultrasound irradiation over one to two hours, resulting in increases in the particle lengths and decreases in the particle diameters from 200 to 80 nm. Photoluminescence intensity was also increased with increases in the ultrasonic irradiation times. Photoluminescence spectra were also influenced by the atmospheric environment. Two bands centered at 390 and 500 nm were generated under a nitrogen environment. On the other hand, a single wide band with a peak at around 430 nm was found for particles generated under an air environment. It can be applied for light emitting diodes (LED) or laser fabrication with a controlled emitting band.http://ijtech.eng.ui.ac.id/article/view/332Chemical synthesisLuminescenceNanostructuresOxidesSonochemistry |
| spellingShingle | W. Widiyastuti Siti Machmudah Tantular Nurtono Sugeng Winardi Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method International Journal of Technology Chemical synthesis Luminescence Nanostructures Oxides Sonochemistry |
| title | Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method |
| title_full | Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method |
| title_fullStr | Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method |
| title_full_unstemmed | Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method |
| title_short | Effects of the Duration of Ultrasonic Irradiation and the Atmospheric Environment on the Characteristics of ZnO Nanostructures via a Sonochemical Method |
| title_sort | effects of the duration of ultrasonic irradiation and the atmospheric environment on the characteristics of zno nanostructures via a sonochemical method |
| topic | Chemical synthesis Luminescence Nanostructures Oxides Sonochemistry |
| url | http://ijtech.eng.ui.ac.id/article/view/332 |
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