Tuning the surface functionality of polyethylene glycol-modified graphene oxide/chitosan composite for efficient removal of dye.

ABSTRACT: There has been a lot of attention on water pollution by dyes in recent years because of their serious toxicological implications on human health and the environment. Therefore, the current study presented a novel polyethylene glycol-functionalized graphene oxide/chitosan composite (PEG-GO/CS) to remove dyes from aqueous solutions. Several characterization techniques, such as SEM, TEM, FTIR, TGA/DTG, XRD, and XPS, were employed to correlate the structure-property relationship between the adsorption performance and PEG-GO/CS composites. Taguchi's (L₂₅) approach was used to optimize the batch adsorption process variables [pH, contact time, adsorbent dose, and initial concentration of methyl orange (MO)] for maximal adsorption capacity. pH = 2, contact time = 90 min, adsorbent dose 

SUBMITTER: Pervez MN 

PROVIDER: S-EPMC10439132 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature