Synthesis of a novel porous Ag₂O nanomaterial on ion exchange resin and its application for COD determination of high salinity water.

ABSTRACT: This study reports for the first time on the synthesis of novel resin@P-Ag₂O material and its application for reducing the chloride effect on COD determination of high salinity water. This engineered core-shell nanomaterial with cationic ion exchange resin core and porous Ag₂O shell was prepared by facile ion exchange and silver oxidation method at ambient temperature without using toxic chemicals. The material was characterized by FTIR, XRD, SEM, and SEM-EDX mapping. In the chloride removal test, this material gave a high adsorption capacity of ca. 244 mgCl/gAg at the mild condition with high durability after several adsorption-desorption cycles. Moreover, resin@P-Ag₂O was applied for removing chloride in water to improve the accuracy of the SMEWW 5220C:20

SUBMITTER: Nguyen TT 

PROVIDER: S-EPMC8169930 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature