<i>In situ</i> synthesis of gold nanoparticles embedded in a magnetic nanocomposite of glucosamine/alginate for enhancing recyclable catalysis performance of nitrophenol reduction.

ABSTRACT: In this study, we introduce an in situ synthesis technique for incorporating gold nanoparticles (AuNPs) into a magnetic nanocomposite made of glucosamine and alginate (GluN/Alg) via ionotropic gelation. GluN acted as a reducing agent for gold ions, leading to the formation of AuNPs which embedded in the nanocomposite Fe₃O₄@GluN/Alg. Analytical techniques confirmed the crystallite structure of the nanocomposite AuNPs/Fe₃O₄@GluN/Alg, which had an average size of 30-40 nm. This nanocomposite demonstrated high catalytic efficiency in reducing 2-, 3-, and 4-nitrophenols, exhibiting rapid kinetics with pseudo-first order rate constants between 1.16 × 10^-3 s^-1 and 2.29 × 10^-3 s^-1. The reduction r

SUBMITTER: Nguyen LK 

PROVIDER: S-EPMC11664256 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature