Competitive adsorption of pharmaceuticals and dissolved organic matter from hospital effluent on amine-functionalized periodic mesoporous organosilicas.

ABSTRACT: The competitive adsorption of clofibric acid (CFA) and sulfamethoxazole (SMX) on amine-organosilane-modified periodic mesoporous organosilicas (PMOs) along with the coexistence of actual complex of dissolved organic matter (DOM) were systematically investigated. The effects of amine-silane units (1N-, 2N-, and 3N-silane) and the molar loading ratios of amine-silane units (10%, 25%, and 40% of organosilica precursor) were evaluated. 3 N-Silane's loading rate at 40% provided the highest amine group density and [Formula: see text], resulting in the highest adsorption performance of CFA and SMX. Adsorption rate and capacity of CFA were better than those of SMX, which closely correlated with the hydrogen bonding, attractive electrostatic interaction, and hydrophobic partitioning corresponding t

SUBMITTER: Siratham S 

PROVIDER: S-EPMC12491413 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature