Issue |
E3S Web Conf.
Volume 588, 2024
Euro-Asian Conference on Sustainable Nanotechnology, Environment, & Energy (SNE2-2024)
|
|
---|---|---|
Article Number | 02001 | |
Number of page(s) | 13 | |
Section | Nanomaterials in Environment and Energy | |
DOI | https://doi.org/10.1051/e3sconf/202458802001 | |
Published online | 08 November 2024 |
Investigation of Cu Doping Concentration on the Structural and Antimicrobial Properties of TiO₂ Thin Films
1 Department of Civil, GRIET, Bachupally, Hyderabad, Telangana, India.
2 Department of Civil Engineering, KG Reddy College of Engineering and Technology, Chilkur(Vil), Moinabad(M), Ranga Reddy(Dist), Hyderabad, 500075, Telangana, India.
3 Uttaranchal University, Dehradun - 248007, India
4 Centre of Research Impact and Outcome, Chitkara University, Rajpura - 140417, Punjab, India
5 Lovely Professional University, Phagwara, Punjab, India,
6 Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh - 174103 India
7 Department of Physics, Research & Incubation Centre, Research & Incubation Centre, Rayat Bahra University, Chandigarh-Ropar NH 205, Greater Mohali, Punjab, 140103, India
* Corresponding author: srinu.tummala@gmail.com
This study aims to examine the microorganism-fighting properties of the thin layers of TiO2. These TiO2 film as synthesized through a chemical process, in which different concentrations of copper have been added. The ability of films to inhibit the growth of different types of bacteria and fungi was examined using the disk diffusion technique. TiO2 films without additives exhibited mild antibacterial action, with inhibition areas varying according to the dose and type of microorganism. In contrast, the films that received a dose of copper showed significant increases in their ability to inhibit bacterial growth. More prominent detention areas were observed when a dose of 60 µg/mL and a doping concentration of 0.1% were used. According to X-ray diffraction tests, it was revealed that the thin films of TiO2 exhibit a cubic crystalline configuration, indicating their high crystallinity and the variation in the position of the peaks due to the inclusion of copper in their composition. The effectiveness in combating bacteria increased when the size of the crystals was raised from 6.72 nm (undoped) to 8.39 nm in presence of 0.1% copper. Significant changes occurred in the external appearance, as seen in the photographs taken using scanning electron microscopy (SEM). The modifications higher concentration of Cu doping, a transformation from smooth surfaces of pure ZnS to rough and porous layers in the films doped with Cu is observed. Specifically, the study reveals that by adding copper to thin films of zinc sulfide, their effectiveness can be enhanced, paving the way for the advancement of materials with antimicrobial properties.
Key words: TiO2 nanoparticles / Cu-doping / antibacterial activity / SEM / XRD
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.