Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites
This study reports the synthesis and characterization of CeO2-TiO2 nanocomposites, focusing on the crystallography and defects in enhancing optical properties. Nanocomposites with varying concentrations of CeO2 (0–5 mol %) were synthesized using a facile ultrasonic and thermal method. The sample was...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918525000101 |
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| author | Samor Boonphan Suriyong Prachakiew Chaiyuth Nontakoat Yanee Keereeta Chatdanai Boonruang Arrak Klinbumrung |
| author_facet | Samor Boonphan Suriyong Prachakiew Chaiyuth Nontakoat Yanee Keereeta Chatdanai Boonruang Arrak Klinbumrung |
| author_sort | Samor Boonphan |
| collection | DOAJ |
| description | This study reports the synthesis and characterization of CeO2-TiO2 nanocomposites, focusing on the crystallography and defects in enhancing optical properties. Nanocomposites with varying concentrations of CeO2 (0–5 mol %) were synthesized using a facile ultrasonic and thermal method. The sample was characterized using several techniques, including XRD, FT-IR, SEM, EDS, UV–Vis spectroscopy, and PL. The crystallite, strain, and dislocation density were estimated based on the XRD analysis. FT-IR spectra refer to CO2 adsorption in the composites. The Dynamic Light Scattering (DLS) exhibits a smaller diameter with more CeO2 content. The incorporation of 5 mol % CeO2 led to a significant reduction in the bandgap from 3.00 eV to 2.24 eV, enabling enhanced absorption in the visible light range. As observed through photoluminescence analysis, F-center defects improved optical density, making the material potential in visible-light-driven photonic technologies. The results suggest that CeO2-TiO2 nanocomposites with abundant F-center defects offer novel opportunities in optical devices and coloration improvement. |
| format | Article |
| id | doaj-art-d52ecc30e2444aa19416f260d2754015 |
| institution | Kabale University |
| issn | 1026-9185 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj-art-d52ecc30e2444aa19416f260d27540152025-01-23T05:26:18ZengElsevierSouth African Journal of Chemical Engineering1026-91852025-04-01526879Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocompositesSamor Boonphan0Suriyong Prachakiew1Chaiyuth Nontakoat2Yanee Keereeta3Chatdanai Boonruang4Arrak Klinbumrung5Faculty of Science and Agricultural Technology, Rajamangala University of Technology Lanna, Chiang Rai, ThailandFaculty of Science and Agricultural Technology, Rajamangala University of Technology Lanna, Chiang Rai, ThailandFaculty of Science and Agricultural Technology, Rajamangala University of Technology Lanna, Chiang Rai, ThailandFaculty of Science and Agricultural Technology, Rajamangala University of Technology Lanna, Lampang, ThailandCentre of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand; Department of Physics and Materials Science, Chiang Mai University, Chiang Mai, ThailandUnit of Excellence on Advanced Nanomaterials, University of Phayao, Phayao, Thailand; School of Science, University of Phayao, Phayao, Thailand; Corresponding author.This study reports the synthesis and characterization of CeO2-TiO2 nanocomposites, focusing on the crystallography and defects in enhancing optical properties. Nanocomposites with varying concentrations of CeO2 (0–5 mol %) were synthesized using a facile ultrasonic and thermal method. The sample was characterized using several techniques, including XRD, FT-IR, SEM, EDS, UV–Vis spectroscopy, and PL. The crystallite, strain, and dislocation density were estimated based on the XRD analysis. FT-IR spectra refer to CO2 adsorption in the composites. The Dynamic Light Scattering (DLS) exhibits a smaller diameter with more CeO2 content. The incorporation of 5 mol % CeO2 led to a significant reduction in the bandgap from 3.00 eV to 2.24 eV, enabling enhanced absorption in the visible light range. As observed through photoluminescence analysis, F-center defects improved optical density, making the material potential in visible-light-driven photonic technologies. The results suggest that CeO2-TiO2 nanocomposites with abundant F-center defects offer novel opportunities in optical devices and coloration improvement.http://www.sciencedirect.com/science/article/pii/S1026918525000101CeO2- TiO2 compositeNanopowderOptical characteristicF center defect,Photoluminescence |
| spellingShingle | Samor Boonphan Suriyong Prachakiew Chaiyuth Nontakoat Yanee Keereeta Chatdanai Boonruang Arrak Klinbumrung Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites South African Journal of Chemical Engineering CeO2- TiO2 composite Nanopowder Optical characteristic F center defect, Photoluminescence |
| title | Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites |
| title_full | Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites |
| title_fullStr | Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites |
| title_full_unstemmed | Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites |
| title_short | Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites |
| title_sort | crystallographic defects induced f center and optical enhancements in ceo2 tio2 nanocomposites |
| topic | CeO2- TiO2 composite Nanopowder Optical characteristic F center defect, Photoluminescence |
| url | http://www.sciencedirect.com/science/article/pii/S1026918525000101 |
| work_keys_str_mv | AT samorboonphan crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites AT suriyongprachakiew crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites AT chaiyuthnontakoat crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites AT yaneekeereeta crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites AT chatdanaiboonruang crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites AT arrakklinbumrung crystallographicdefectsinducedfcenterandopticalenhancementsinceo2tio2nanocomposites |