The blending effect of natural polysaccharides with nano-zirconia towards the removal of fluoride and arsenate from water.

ABSTRACT: Nano-zirconia (ZO) was synthesized using a microwave-assisted one-pot precipitation route. Two biopolymers, chitosan (CTS) and carboxymethyl cellulose were blended with ZO at different w/w ratios. The formulation with 30% w/w chitosan (ZO-CTS) was found to give enhanced uptake of F^- and As(V). ZO and the most effective ZO-CTS system were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. These confirmed the formation of a composite system containing nanoparticles of 50 nm in size, in which ZO was present in the amorphous form. It was observed that the combination of ZO with CTS improved the F^- and As(V) adsorption capacity most notably at pH 5.5. Fluoride adsorption by ZO-C

SUBMITTER: Shanika Fernando M 

PROVIDER: S-EPMC9993049 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature