Electrical properties of TiO2/CO3O4 core/shell nanoparticles synthesized by sol-gel method
-
Published:2023-04-20
Issue:1
Volume:18
Page:403-410
-
ISSN:1842-3582
-
Container-title:Digest Journal of Nanomaterials and Biostructures
-
language:
-
Short-container-title:DJNB
Author:
Iqbal W., ,Mekki M.,Rehman W.,Shahzad B.,Anwar U.,Mahmood S.,Talukder Md. E., , , , , ,
Abstract
TiO2/Co3O4 core-shell nanoparticles were successfully synthesized by the sol-gel method in two steps: the first step is the sol-gel synthesis of Co3O4 nanoparticles, and the second step is the synthesis of TiO2/Co3O4 nanoparticles by sol-gel method. The obtained Co3O4 and TiO2/Co3O4 core-shell nanoparticles were investigated utilizing X-ray diffraction, scanning electron microscopy, Fourier transforms infrared spectroscopy, diffuse reflectance spectroscopy, and conductivity measurement. X-ray diffraction analysis showed the presence of both Co3O4 and TiO2 phases in TiO2/Co3O4 core-shell nanoparticles; co3o4 nanoparticles have a cubic shape, and TiO2 nanoparticles have a tetragonal shape. SEM images of Co3O4 nanoparticles show most of the particles are smoothly distributed, having separate boundaries, and images of TiO2/Co3O4 nanoparticles showed that with an increase in calcination temperature, the size of the core-shell nanoparticles also increases. FTIR spectrum of both confirms the synthesis of Co3O4 and TiO2/Co3O4 nanomaterials. Diffuse reflectance spectroscopy exhibited the band gaps of TiO2/Co3O4 core-shell nanoparticles decrease with the increase of the temperature. The conductivity of the TiO2/Co3O4 core-shell nanomaterials increases with an increase in temperature and also with an increase in frequency.
Publisher
Virtual Company of Physics
Subject
Physical and Theoretical Chemistry,Condensed Matter Physics,General Materials Science,Biomedical Engineering,Atomic and Molecular Physics, and Optics,Structural Biology
Reference26 articles.
1. [1] Mondal, K., & Sharma, A. (2016). RSC advances, 6(87), 83589-83612; https://doi.org/10.1039/C6RA18102C 2. [2] Bhattacharjee, Y., & Bose, S. (2021). ACS Applied Nano Materials, 4(2), 949-972; https://doi.org/10.1021/acsanm.1c00278 3. [3] Feng, H. P., Tang, L., Zeng, G. M., Zhou, Y., Deng, Y. C., Ren, X., ... & Yu, J. F. (2019). Advances in Colloid and Interface Science, 267, 26-46; https://doi.org/10.1016/j.cis.2019.03.001 4. [4] Joudeh, N., & Linke, D. (2022). Journal of Nanobiotechnology, 20(1), 1-29; 5. [5] Noreen, S., Tahir, M. B., Hussain, A., Nawaz, T., Rehman, J. U., Dahshan, A., ... & Alrobei, H. (2021). International Journal of Hydrogen Energy.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|