Simultaneous removal of Pb²⁺ and direct red 31 dye from contaminated water using N-(2-hydroxyethyl)-2-oxo-2H-chromene-3-carboxamide loaded chitosan nanoparticles.

ABSTRACT: This study reports the preparation of a new material that can remove synthetic dyes and trace metals simultaneously. A new coumarin derivative was synthesized and its chemical structure was inferred from spectral data (FT-IR, ¹H-NMR, ¹³C-NMR). Meanwhile, chitosan nanoparticles (CsNPs) were prepared then used as a carrier for two different concentrations of the coumarin derivative (C1@CsNPs and C2@CsNPs). The TEM, SEM and DLS findings illustrated that the prepared nanocomposites exhibited spherical shape and small size (less than 200 nm). The performance of the prepared material for the removal of an anionic dye (direct red 31, DR31) and cationic trace metal (Pb²⁺) was evaluated in unary and binary systems. The results revealed that complete removal of 10 mg

SUBMITTER: El-Naggar ME 

PROVIDER: S-EPMC9241362 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature