Poly (Vinyl Alcohol) Hydrogels Boosted with Cross-Linked Chitosan and Silver Nanoparticles for Efficient Adsorption of Congo Red and Crystal Violet Dyes.

ABSTRACT: In our previous work, three different weight ratios of chitosan/PVA (1:3, 1:1, and 3:1) were blended and then cross-linked with trimellitic anhydride isothiocyanate (TAI) at a concentration depending on their chitosan content, obtaining three hydrogels symbolized by H₁₃, H₁₁, and H₃₁. Pure chitosan was cross-linked with TAI, producing a hydrogel symbolized by H₁₀. Further, three H₃₁-based silver nanoparticles composites (H₃₁/AgNPs1%, H₃₁/AgNPs3%, and H₃₁/AgNPs5%) were also synthesized. They were investigated, for the first time in this study, as adsorbents for Congo Red (CR) and Crystal Violet (CV) dyes. The removal efficiency of CR dye increased with increasing H₁₀ content in the hydrogels,

SUBMITTER: Alfuraydi RT 

PROVIDER: S-EPMC10670830 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature