Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation
Polycarbonate (PC)-ZnO films with different percentages of ZnO were prepared by a solution stirring technique and subjected to ultraviolet (UV; <i>λ</i> = 254 nm) irradiation. Structural parameters of the samples and the effects of UV irradiation on the surface properties of the PC and P...
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MDPI AG
2022-07-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/14/4448 |
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| author | Babak Jaleh Sara Hamzehi Reza Sepahvand Saeid Azizian Mahtab Eslamipanah Reza Golbedaghi Alireza Meidanchi Rui Fausto |
| author_facet | Babak Jaleh Sara Hamzehi Reza Sepahvand Saeid Azizian Mahtab Eslamipanah Reza Golbedaghi Alireza Meidanchi Rui Fausto |
| author_sort | Babak Jaleh |
| collection | DOAJ |
| description | Polycarbonate (PC)-ZnO films with different percentages of ZnO were prepared by a solution stirring technique and subjected to ultraviolet (UV; <i>λ</i> = 254 nm) irradiation. Structural parameters of the samples and the effects of UV irradiation on the surface properties of the PC and PC-ZnO nanocomposites were evaluated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle (WCA) measurements, and a Vickers microhardness (H<sub>V</sub>) tester. The XRD patterns of the nanocomposite films were found to show an increase in crystallinity with the increasing ZnO nanoparticles percentage. The WCA was found to be reduced from 90° to 17° after 15 h of UV irradiation, which could be ascribed to the oxidation of the surface of the samples during the irradiation and exposure of the ZnO nanoparticles, a result that is also supported by the obtained XPS data. The microhardness value of the PC-ZnO films including 30 wt.% ZnO enhanced considerably after UV radiation, which can also be attributed to the exposition of the ZnO nanoparticles after photodegradation of the PC superficial layer of the nanocomposite films. |
| first_indexed | 2024-03-09T13:18:45Z |
| format | Article |
| id | doaj.art-b1eb5d740e53447196e5ae12f2f6757b |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T13:18:45Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-b1eb5d740e53447196e5ae12f2f6757b2023-11-30T21:33:25ZengMDPI AGMolecules1420-30492022-07-012714444810.3390/molecules27144448Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV IrradiationBabak Jaleh0Sara Hamzehi1Reza Sepahvand2Saeid Azizian3Mahtab Eslamipanah4Reza Golbedaghi5Alireza Meidanchi6Rui Fausto7Physics Department, Bu-Ali Sina University, Hamedan 65174, IranPhysics Department, Lorestan University, Khorramabad 68151, IranPhysics Department, Lorestan University, Khorramabad 68151, IranDepartment of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174, IranPhysics Department, Bu-Ali Sina University, Hamedan 65174, IranDepartment of Chemistry, Payame Noor University (PNU), Tehran 19395-4697, IranDepartment of Physics, Payame Noor University (PNU), Tehran 19395-4697, IranCQC-IMS, Department of Chemistry, University of Coimbra, 3004-525 Coimbra, PortugalPolycarbonate (PC)-ZnO films with different percentages of ZnO were prepared by a solution stirring technique and subjected to ultraviolet (UV; <i>λ</i> = 254 nm) irradiation. Structural parameters of the samples and the effects of UV irradiation on the surface properties of the PC and PC-ZnO nanocomposites were evaluated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle (WCA) measurements, and a Vickers microhardness (H<sub>V</sub>) tester. The XRD patterns of the nanocomposite films were found to show an increase in crystallinity with the increasing ZnO nanoparticles percentage. The WCA was found to be reduced from 90° to 17° after 15 h of UV irradiation, which could be ascribed to the oxidation of the surface of the samples during the irradiation and exposure of the ZnO nanoparticles, a result that is also supported by the obtained XPS data. The microhardness value of the PC-ZnO films including 30 wt.% ZnO enhanced considerably after UV radiation, which can also be attributed to the exposition of the ZnO nanoparticles after photodegradation of the PC superficial layer of the nanocomposite films.https://www.mdpi.com/1420-3049/27/14/4448nanocompositepolycarbonateZnO nanoparticlessurface propertiesUV irradiation |
| spellingShingle | Babak Jaleh Sara Hamzehi Reza Sepahvand Saeid Azizian Mahtab Eslamipanah Reza Golbedaghi Alireza Meidanchi Rui Fausto Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation Molecules nanocomposite polycarbonate ZnO nanoparticles surface properties UV irradiation |
| title | Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation |
| title_full | Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation |
| title_fullStr | Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation |
| title_full_unstemmed | Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation |
| title_short | Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation |
| title_sort | preparation of polycarbonate zno nanocomposite films surface investigation after uv irradiation |
| topic | nanocomposite polycarbonate ZnO nanoparticles surface properties UV irradiation |
| url | https://www.mdpi.com/1420-3049/27/14/4448 |
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