Elucidating the Role of Capping Agents in Facet-Dependent Adsorption Performance of Hematite Nanostructures.

ABSTRACT: Organic capping agents are a ubiquitous and crucial part of preparing reproducible and homogeneous batches of nanomaterials, particularly nanocrystals with well-defined facets. Despite studies reporting surface ligands (e.g., capping agents) having a non-negligible role in catalytic behavior, their impact is less understood in contaminant adsorption, an important consideration given their potential to obfuscate facet-dependent trends in performance. To ascribe observed behaviors to the facet or the ligand, this report evaluates the impact of poly(N-vinyl-2-pyrrolidone) (PVP), a commonly utilized capping agent, on the adsorption performance of nanohematite particles of varying prevailing facet in the removal of selenite (Se(IV)) as a model system. The PVP capping agent reduces the av

SUBMITTER: Rudel HE 

PROVIDER: S-EPMC10502695 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature