Tailoring of optical band gap in carbon-doped TiO<sub>2</sub> nanofibers-Reference-Cited by-同舟云学术

Tailoring of optical band gap in carbon-doped TiO₂ nanofibers

Published:2023-11-20 Issue:0 Volume:0 Page:
ISSN:0932-0784
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Arshad Javeria¹,Ahmed Muqarrab²,Anwar Nadia³⁴,Irfan Shaheen³,Iram Nazia⁵,Nowsherwan Ghazi Aman⁶^ORCID,Khalid Rabia⁷,Anwar Bushra⁸,Anwar Fouzia⁸

Affiliation:

1. Department of Physics , University of the Punjab , Lahore 54590 , Pakistan

2. Department of Chemical Engineering , University of Engineering and Technology , Lahore 54890 , Pakistan

3. Department of Physics , The University of Lahore , Lahore 54000 , Pakistan

4. School of Materials Science and Engineering , Tsinghua University , Beijing 100084 , China

5. Institute of Physics , Bahauddin Zakariya University , Multan 60800 , Pakistan

6. Centre of Excellence in Solid State Physics , University of the Punjab , Lahore 54590 , Pakistan

7. Department of Materials Physics & Chemistry , Beijing Institute of Technology (BIT) , Beijing 100811 , China

8. Faculty of Agricultural Sciences , University of the Punjab , Lahore 54590 , Pakistan

Abstract

Abstract 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.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2023-0227/pdf

Reference30 articles.

1. R. Vasita and D. S. Katti, “Nanofibers and their applications in tissue engineering,” Int. J. Nanomed., vol. 1, no. 1, pp. 15–30, 2006. https://doi.org/10.2147/nano.2006.1.1.15.

2. Y. Yang, B. Xie, Q. Liu, B. Kong, and H. Wang, “Fabrication and characterization of novel polysaccharide-based composite nanofiber films with tunable physical properties,” Carbohydrate Polym., vol. 236, p. 116054, 2020. https://doi.org/10.1016/j.carbpol.2020.116054.

3. I. A. Arida, I. H. Ali, M. Nasr, and I. M. El-Sherbiny, “Electrospun polymer-based nanofiber scaffolds for skin regeneration,” J. Drug Delivery Sci. Technol., vol. 64, p. 102623, 2021. https://doi.org/10.1016/j.jddst.2021.102623.

4. Y. Yang, Y. Du, J. Zhang, H. Zhang, and B. Guo, “Structural and functional design of electrospun nanofibers for hemostasis and wound healing,” Adv. Fiber Mater., vol. 4, no. 5, pp. 1027–1057, 2022. https://doi.org/10.1007/s42765-022-00178-z.

5. D. Yadav, F. Amini, and A. Ehrmann, “Recent advances in carbon nanofibers and their applications–a review,” Eur. Polym. J., vol. 138, p. 109963, 2020. https://doi.org/10.1016/j.eurpolymj.2020.109963.