Size Adjustment of Zinc Oxide Nanostructures by Ultrasmall TiO₂ Nanoparticles.

ABSTRACT: The interaction of positively charged ZnO nanorods (nr-ZnO) with negatively charged ultrasmall amorphous titanium dioxide (am-TiO₂) nanoparticles (NPs) induced a decrease in the nr-ZnO particle size while forming nanostructured core@shell xZT materials (Zn/Ti molar ratios of 16, 8, 4, 2, and 1). Such an unexpected outcome was assigned to the high affinity and Zn-(II) ion adsorption capacity of am-TiO₂ NP, as confirmed by the amount of Zn-(II) ion in equilibrium in solution with am-TiO₂ determined by ICP-OES and the respective adsorption isotherm profile. The changes in size, morphology, and crystallinity compared to pure nr-ZnO were monitored by FTIR and UV-vis spectroscopy, dynamic light scattering (DLS), an

SUBMITTER: de Assis GL 

PROVIDER: S-EPMC12903040 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature