. 2021 Jul 8;26(14):4161. doi: 10.3390/molecules26144161
© 2021 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Figure 5.
ATR-FTIR spectra of ZnO, Ag, and TiO2 NPs.