{"title":"利用自旋涂布技术改变沉积层数对聚氯乙烯/氧化锌纳米复合薄膜的结构、光学和光催化性能的影响","authors":"Aimane Guedri, Mourad Zaabat, Boubekeur Boudine, Okba Guedri, Abdelkader Hafdallah","doi":"10.1007/s13538-024-01567-y","DOIUrl":null,"url":null,"abstract":"<div><p>Spin coating is a key method for thin film preparation due to its simplicity and cost-effectiveness, relying on the number of layers deposited. This study investigates the impact of sample thickness on polyvinyl chloride (PVC) nanocomposites doped with zinc oxide (ZnO) nanoparticles, focusing on structural, optical properties, and photocatalytic activity. Different numbers of layers (15, 20, 25, and 30) were synthesized via sol–gel spin coating using tetrahydrofuran as a solvent. X-ray diffraction revealed ZnO crystallites in 30-layer films, with a wurtzite structure and 32 nm crystallite size. Raman and infrared spectra confirmed ZnO incorporation. Optical transmittance ranged from 75 to 86%, with band gap energies between 3.45 and 3.94 eV. Photoluminescence spectra indicated ultraviolet and green luminescence attributed to ZnO defects. Photocatalytic efficiency, tested with methylene blue under UV irradiation, showed the 30-layer sample achieving 79% removal efficiency at 60 min, outperforming others.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"54 5","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Impact of Varying the Number of Layers Deposited Using the Spin-Coating Technique on the Structural, Optical, and Photocatalytic Properties of Polyvinyl Chloride/Zinc Oxide Nanocomposite Films\",\"authors\":\"Aimane Guedri, Mourad Zaabat, Boubekeur Boudine, Okba Guedri, Abdelkader Hafdallah\",\"doi\":\"10.1007/s13538-024-01567-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Spin coating is a key method for thin film preparation due to its simplicity and cost-effectiveness, relying on the number of layers deposited. This study investigates the impact of sample thickness on polyvinyl chloride (PVC) nanocomposites doped with zinc oxide (ZnO) nanoparticles, focusing on structural, optical properties, and photocatalytic activity. Different numbers of layers (15, 20, 25, and 30) were synthesized via sol–gel spin coating using tetrahydrofuran as a solvent. X-ray diffraction revealed ZnO crystallites in 30-layer films, with a wurtzite structure and 32 nm crystallite size. Raman and infrared spectra confirmed ZnO incorporation. Optical transmittance ranged from 75 to 86%, with band gap energies between 3.45 and 3.94 eV. Photoluminescence spectra indicated ultraviolet and green luminescence attributed to ZnO defects. Photocatalytic efficiency, tested with methylene blue under UV irradiation, showed the 30-layer sample achieving 79% removal efficiency at 60 min, outperforming others.</p></div>\",\"PeriodicalId\":499,\"journal\":{\"name\":\"Brazilian Journal of Physics\",\"volume\":\"54 5\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13538-024-01567-y\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s13538-024-01567-y","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
The Impact of Varying the Number of Layers Deposited Using the Spin-Coating Technique on the Structural, Optical, and Photocatalytic Properties of Polyvinyl Chloride/Zinc Oxide Nanocomposite Films
Spin coating is a key method for thin film preparation due to its simplicity and cost-effectiveness, relying on the number of layers deposited. This study investigates the impact of sample thickness on polyvinyl chloride (PVC) nanocomposites doped with zinc oxide (ZnO) nanoparticles, focusing on structural, optical properties, and photocatalytic activity. Different numbers of layers (15, 20, 25, and 30) were synthesized via sol–gel spin coating using tetrahydrofuran as a solvent. X-ray diffraction revealed ZnO crystallites in 30-layer films, with a wurtzite structure and 32 nm crystallite size. Raman and infrared spectra confirmed ZnO incorporation. Optical transmittance ranged from 75 to 86%, with band gap energies between 3.45 and 3.94 eV. Photoluminescence spectra indicated ultraviolet and green luminescence attributed to ZnO defects. Photocatalytic efficiency, tested with methylene blue under UV irradiation, showed the 30-layer sample achieving 79% removal efficiency at 60 min, outperforming others.
期刊介绍：
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.
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