Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique
Titanium dioxide nanoparticles were produced in this work by laser ablation of a high purity titanium objective immersed in distilled water. Optical and structural properties of the obtained TiO<sub>2</sub> NPs using a Q-switched Nd: YAG laser of 1064nm wavelength with different laser en...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Technology, Baghdad
2022-02-01
|
| Series: | Journal of Applied Sciences and Nanotechnology |
| Subjects: | |
| Online Access: | https://jasn.uotechnology.edu.iq/article_17073_4166fd085281133eb8c33f9c4d50a249.pdf |
| _version_ | 1818487798853795840 |
|---|---|
| author | Israa Hasan Khawla Khashan Aseel Hadi |
| author_facet | Israa Hasan Khawla Khashan Aseel Hadi |
| author_sort | Israa Hasan |
| collection | DOAJ |
| description | Titanium dioxide nanoparticles were produced in this work by laser ablation of a high purity titanium objective immersed in distilled water. Optical and structural properties of the obtained TiO<sub>2</sub> NPs using a Q-switched Nd: YAG laser of 1064nm wavelength with different laser energy (80, 100, 120, 140, and 160) mJ at 100 pulses was studied. The produced TiO<sub>2</sub> NPs were characterized employing UV-VIS Spectrophotometer, X-ray diffraction, and scanning electron microscopy (SEM). The obtained TiO<sub>2</sub>NPs showed a decrease in transmittance in the region of the UV spectrum and an increase in the visible spectrum region. The estimated optical band gap of the TiO<sub>2</sub>NPs was 3.89eV, 3.8eV, and 3.70eV at 80, 120 and 160mJ laser energy, respectively. The as-produced TiO<sub>2</sub>NPs appear to be a Brookite crystalline phase with the preferential orientation along (200) direction. The scanning electron microscopy assays showed that the TiO<sub>2</sub> NPs have a cauliflower shape. Results show that with increasing the energy of laser pulse, the size of nanoparticles was increased noticeably. Where the particle size and its morphology are affected by laser energy. |
| first_indexed | 2024-12-10T16:42:39Z |
| format | Article |
| id | doaj.art-007984e094be431c8b4f440160deccc7 |
| institution | Directory Open Access Journal |
| issn | 2788-6867 |
| language | English |
| last_indexed | 2024-12-10T16:42:39Z |
| publishDate | 2022-02-01 |
| publisher | University of Technology, Baghdad |
| record_format | Article |
| series | Journal of Applied Sciences and Nanotechnology |
| spelling | doaj.art-007984e094be431c8b4f440160deccc72022-12-22T01:41:10ZengUniversity of Technology, BaghdadJournal of Applied Sciences and Nanotechnology2788-68672022-02-0121111910.53293/jasn.2021.3600.103117073Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL TechniqueIsraa Hasan0Khawla Khashan1Aseel Hadi2Department of Applied Sciences, University of Technology – IraqDepartment of Applied Sciences, University of Technology – IraqDepartment of Applied Sciences, University of Technology – IraqTitanium dioxide nanoparticles were produced in this work by laser ablation of a high purity titanium objective immersed in distilled water. Optical and structural properties of the obtained TiO<sub>2</sub> NPs using a Q-switched Nd: YAG laser of 1064nm wavelength with different laser energy (80, 100, 120, 140, and 160) mJ at 100 pulses was studied. The produced TiO<sub>2</sub> NPs were characterized employing UV-VIS Spectrophotometer, X-ray diffraction, and scanning electron microscopy (SEM). The obtained TiO<sub>2</sub>NPs showed a decrease in transmittance in the region of the UV spectrum and an increase in the visible spectrum region. The estimated optical band gap of the TiO<sub>2</sub>NPs was 3.89eV, 3.8eV, and 3.70eV at 80, 120 and 160mJ laser energy, respectively. The as-produced TiO<sub>2</sub>NPs appear to be a Brookite crystalline phase with the preferential orientation along (200) direction. The scanning electron microscopy assays showed that the TiO<sub>2</sub> NPs have a cauliflower shape. Results show that with increasing the energy of laser pulse, the size of nanoparticles was increased noticeably. Where the particle size and its morphology are affected by laser energy.https://jasn.uotechnology.edu.iq/article_17073_4166fd085281133eb8c33f9c4d50a249.pdflaser ablationphysical propertiesmetal oxide nanoparticlestio2 nps |
| spellingShingle | Israa Hasan Khawla Khashan Aseel Hadi Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique Journal of Applied Sciences and Nanotechnology laser ablation physical properties metal oxide nanoparticles tio2 nps |
| title | Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique |
| title_full | Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique |
| title_fullStr | Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique |
| title_full_unstemmed | Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique |
| title_short | Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique |
| title_sort | study of the effect of laser energy on the structural and optical properties of tio2 nps prepared by plal technique |
| topic | laser ablation physical properties metal oxide nanoparticles tio2 nps |
| url | https://jasn.uotechnology.edu.iq/article_17073_4166fd085281133eb8c33f9c4d50a249.pdf |
| work_keys_str_mv | AT israahasan studyoftheeffectoflaserenergyonthestructuralandopticalpropertiesoftio2npspreparedbyplaltechnique AT khawlakhashan studyoftheeffectoflaserenergyonthestructuralandopticalpropertiesoftio2npspreparedbyplaltechnique AT aseelhadi studyoftheeffectoflaserenergyonthestructuralandopticalpropertiesoftio2npspreparedbyplaltechnique |