Affiliation:
1. a Department of Environmental Engineering, Mersin University, Mersin 33343, Turkey
2. b National Agricultural Research Centre (NARC), Jenin, Palestine
Abstract
AbstractIn this study, calcium alginate (Ca-Alg) beads were mixed with leonardite powder to prepare leonardite-embedded calcium alginate (Leo-Ca-Alg) beads. The prepared Leo-Ca-Alg beads were utilized for the adsorption of the Safranin-O dye. Leo-Ca-Alg beads were characterized by X-ray diffraction, Fourier transform infrared, and scanning electron microscopy before and after the adsorption process. The effects of pH, adsorbent dose, initial dye concentration, and contact time on the adsorption of Safranin-O dye onto Leo-Ca-Alg beads were investigated. The optimal condition was achieved at a pH value of 8.0, an adsorbent amount of 20 g/L, an initial concentration of 10 mg/L, and a contact time of 120 min. Under optimum conditions, 98.91% dye removal efficiency was obtained. Besides, the isotherm, kinetic, and thermodynamic were studied for the adsorption process. Accordingly, the removal of Safranin-O dye by the Leo-Ca-Alg adsorbent can be defined by the Freundlich model and described by the Elovich model and the second-order kinetic model at concentrations of 10 and 20–30 mg/L, respectively. The Safranin-O removal by Leo-Ca-Alg was feasible and naturally spontaneous. In reuse cycle studies, it was tried up to 10 reuses and decreased from 98.91 to 83.01% in the 10th use.
Subject
Water Science and Technology
Reference73 articles.
1. Arylidene polymers. IX. Synthesis, characterization, and morphology of new polyesters of diarylidenecycloalkanones containing thianthrene units;Journal of Macromolecular Science – Chemistry,1991
2. Removal of Cu(II), Pb(II), Mg(II), and Fe(II) by adsorption onto alginate/nanocellulose beads as bio-sorbent;Journal of Renewable Materials,2021
3. Abatement of organic pollutants using fly ash based adsorbents;Water Science and Technology,2017
4. Synthesis and characterization of magnetically separable and recyclable crumbled MgFe2O4/reduced graphene oxide nanoparticles for removal of methylene blue dye from aqueous solutions;Journal of Physics and Chemistry of Solids,2021
5. Modified durian seed as adsorbent for the removal of methyl red dye from aqueous solutions;Applied Water Science,2015
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