https://doi.org/10.1140/epjb/s10051-025-00943-0
Regular Article - Solid State and Materials
Antibacterial and photocatalytic activity of Tb-doped ZnO nanoparticles: effect of doping concentration
1
Department of Physics, Thanthai Periyar Government Arts and Science College (Autonomous), Tiruchirappalli (Affiliated to Bharathidasan University, Tiruchirappalli), Tiruchirappalli, India
2
Department of Physics, Government Arts and Science College, Veppanthattai (Affiliated to Bharathidasan University, Tiruchirappalli), Tiruchirappalli, India
3
Department of Physics, Karpagam Academy of Higher Education, Coimbatore, India
4
Department of Physics, Thin Film and Nanoscience Research Lab, Alagappa Government Arts College, Karaikudi (Affiliated to Alagappa University, Karaikudi), Karaikudi, India
5
Instituto de Alta Investigación, Universidad de Tarapacá, 1000000, Arica, Chile
6
Department of Physics, Srinivasa Ramanujan Centre, SASTRA Deemed University Kumbakonam, Kumbakonam, India
7
Department of Biochemistry, Saveetha Medical College, Chennai, India
8
Saveetha Institute of Medical and Technical Sciences, Chennai, India
9
Department of Botany and Microbiology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
10
School of Language Chemical Engineering, Yeungnam University, 38541, Gyeongsan, Republic of Korea
11
East Coast Life Sciences Institute, Gangneung-Wonju National University, Gangneung-si, Gangwon-do, Republic of Korea
a
pbaskaranphy@yahoo.com
b
brunochandrasekar@gmail.com
Received:
4
February
2025
Accepted:
27
April
2025
Published online:
15
May
2025
Tb-doped ZnO nanoparticles (TbxZn1-xO) were prepared by chemical precipitation method with different doping concentrations of Tb. The crystallite size and other related structural properties are examined. Young’s modulus, electron jump length and crystal lattice distortion degree are discussed as a function of doping concentration. The band gap reduces from 3.24 to 2.82 eV as the doping concentration of Tb increases from 0%. The prepared nanoparticles are hole-rich materials. The quenching is observed in the photoluminescence spectrum due to doping. Kirby–Bauer method is employed to investigate the anti-bacterial activity against Gram-positive and Gram-negative bacteria that cause septicemia. The degradation of methylene blue using the prepared nanoparticles as a catalyst is examined using both UV and Visible radiation. The effective degradation is observed in this work and the enhanced photocatalytic activity is observed at high doping concentration of Tb. The maximum degradation efficiency of 98.60% is observed against methylene blue when the dye is irradiated by UV radiation for the time period of 120 min. But the same is 74.89% by visible light.
The original online version of this article was revised: In this article the author’s name Subramanian Palanisamy was incorrectly written as Subamanian Palanisamy.
A correction to this article is available online at https://doi.org/10.1140/epjb/s10051-025-00961-y.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
corrected publication 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
