{"title":"碳掺杂TiO2纳米纤维光学带隙的裁剪","authors":"Javeria Arshad, Muqarrab Ahmed, Nadia Anwar, Shaheen Irfan, Nazia Iram, Ghazi Aman Nowsherwan, Rabia Khalid, Bushra Anwar, Fouzia Anwar","doi":"10.1515/zna-2023-0227","DOIUrl":null,"url":null,"abstract":"The study intended to enhance the visible light activity of titanium dioxide (TiO<jats:sub>2</jats:sub>) by doping it with carbon, thereby reducing its effective band gap. Carbon-doped TiO<jats:sub>2</jats:sub> nanofibers were synthesized using a simple electrospinning process. The prepared samples were then characterized to investigate their properties. X-ray diffraction (XRD) analysis confirmed the presence of the rutile phase of TiO<jats:sub>2</jats:sub> in the nanofibers. The XRD pattern exhibited maximum peak intensity at the highest temperature used during synthesis, indicating that the temperature influenced the crystalline structure of the nanofibers. Scanning electron microscopy (SEM) was conducted to examine the morphology of the nanofibers. The results revealed that as temperature increased, the diameter of the nanofibers decreased. The XRF (X-ray Fluorescence) results indicate the atomic composition of carbon-doped TiO<jats:sub>2</jats:sub> nanofibers. UV–vis spectroscopy was performed to evaluate the optical properties of the carbon-doped TiO<jats:sub>2</jats:sub> nanofibers. The results demonstrated a shift of the optical band towards the visible region. Moreover, the carbon doping reduced the effective band gap, resulting in improved visible light activity of the TiO<jats:sub>2</jats:sub> material. These results have significant implications for potential applications of carbon-doped TiO<jats:sub>2</jats:sub> nanofibers in various fields, such as photocatalysis and solar energy conversion.","PeriodicalId":23871,"journal":{"name":"Zeitschrift für Naturforschung A","volume":"88 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tailoring of optical band gap in carbon-doped TiO2 nanofibers\",\"authors\":\"Javeria Arshad, Muqarrab Ahmed, Nadia Anwar, Shaheen Irfan, Nazia Iram, Ghazi Aman Nowsherwan, Rabia Khalid, Bushra Anwar, Fouzia Anwar\",\"doi\":\"10.1515/zna-2023-0227\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The study intended to enhance the visible light activity of titanium dioxide (TiO<jats:sub>2</jats:sub>) by doping it with carbon, thereby reducing its effective band gap. Carbon-doped TiO<jats:sub>2</jats:sub> nanofibers were synthesized using a simple electrospinning process. The prepared samples were then characterized to investigate their properties. X-ray diffraction (XRD) analysis confirmed the presence of the rutile phase of TiO<jats:sub>2</jats:sub> in the nanofibers. The XRD pattern exhibited maximum peak intensity at the highest temperature used during synthesis, indicating that the temperature influenced the crystalline structure of the nanofibers. Scanning electron microscopy (SEM) was conducted to examine the morphology of the nanofibers. The results revealed that as temperature increased, the diameter of the nanofibers decreased. The XRF (X-ray Fluorescence) results indicate the atomic composition of carbon-doped TiO<jats:sub>2</jats:sub> nanofibers. UV–vis spectroscopy was performed to evaluate the optical properties of the carbon-doped TiO<jats:sub>2</jats:sub> nanofibers. The results demonstrated a shift of the optical band towards the visible region. Moreover, the carbon doping reduced the effective band gap, resulting in improved visible light activity of the TiO<jats:sub>2</jats:sub> material. These results have significant implications for potential applications of carbon-doped TiO<jats:sub>2</jats:sub> nanofibers in various fields, such as photocatalysis and solar energy conversion.\",\"PeriodicalId\":23871,\"journal\":{\"name\":\"Zeitschrift für Naturforschung A\",\"volume\":\"88 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Naturforschung A\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/zna-2023-0227\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Naturforschung A","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/zna-2023-0227","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Tailoring of optical band gap in carbon-doped TiO2 nanofibers
The study intended to enhance the visible light activity of titanium dioxide (TiO2) by doping it with carbon, thereby reducing its effective band gap. Carbon-doped TiO2 nanofibers were synthesized using a simple electrospinning process. The prepared samples were then characterized to investigate their properties. X-ray diffraction (XRD) analysis confirmed the presence of the rutile phase of TiO2 in the nanofibers. The XRD pattern exhibited maximum peak intensity at the highest temperature used during synthesis, indicating that the temperature influenced the crystalline structure of the nanofibers. Scanning electron microscopy (SEM) was conducted to examine the morphology of the nanofibers. The results revealed that as temperature increased, the diameter of the nanofibers decreased. The XRF (X-ray Fluorescence) results indicate the atomic composition of carbon-doped TiO2 nanofibers. UV–vis spectroscopy was performed to evaluate the optical properties of the carbon-doped TiO2 nanofibers. The results demonstrated a shift of the optical band towards the visible region. Moreover, the carbon doping reduced the effective band gap, resulting in improved visible light activity of the TiO2 material. These results have significant implications for potential applications of carbon-doped TiO2 nanofibers in various fields, such as photocatalysis and solar energy conversion.