Rapid Removal of Acid Red 88 by Zeolite/Chitosan Hydrogel in Aqueous Solution.

ABSTRACT: In the present study, we developed a new adsorbent product with zeolite crosslinked chitosan (ZL-CH hydrogel) to remove acid red 88 (AR88) in an aqueous solution. The effects of several factors, such as the comparison of ZL-CH hydrogel and the absence of chitosan, pH, adsorbent dosage, initial AR88 concentration, contact time, and ion strength, were determined. Obtained results showed that ZL-CH hydrogel improved AR88 removal compared to the absence of chitosan, with an adsorption capacity of 332.48 mg/g in equilibrium time of 1 min, and adding ionic strength had no significant effect. However, with optimal conditions at pH 2.0, dry ZL-CH became hydrogel due to protonation of amino and hydroxyl groups through hydrogen bonds in the AR88 solution. Volume fraction and interaction force decrea

SUBMITTER: Hidayat E 

PROVIDER: S-EPMC8912896 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature