Surface protolytic property characterization of hydroxyapatite and titanium dioxide nanoparticles.

ABSTRACT: We provide characterization data of hydroxyapatite (nHAp) and titanium dioxide (nTiO₂) nanoparticles as potential materials for ion sorption, e.g. in targeted therapy, barrier materials for waste repositories or photovoltaics. The study is focused on the determination of the values of protonation and ion exchange constants and site densities (∑SOH, ∑X; [mol kg^-1]) of nTiO₂ and nHAp for further Ra kinetics and sorption experiments. These data are very important for further investigation of the materials, which can be used e.g. as drug delivery systems or in engineered barriers of deep geological repositories. The characterization was based on the evaluation of the dependence of titrating agent consumption on pH. Titration results were evaluated

SUBMITTER: Kukleva E 

PROVIDER: S-EPMC9066438 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature