Transport of cerium oxide nanoparticles in saturated silica media: influences of operational parameters and aqueous chemical conditions.

ABSTRACT: This paper aimed to investigate the influences of operational parameters and aqueous chemical conditions on transport behaviors of cerium oxides nanoparticles (CeO₂-NPs) in saturated silica media. Results indicated that increasing rates of attachment efficiency (α) were related with cationic types, and critical deposition concentration (CDC) for divalent cation (Ca²⁺ and Mg²⁺) were more than 31-fold of that for monovalent cation (Na⁺ and K⁺). Increase or reduction of electrolyte pH could both promote the mobility of CeO₂-NPs in glass beads, while influence was more evident at alkaline conditions. α increased linearly with NPs concentrations, while decreased linearly with flow velocity in the column, and effects were related

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC5046158 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature