Preparation and characterization of polyacrylamide / sodium alginate microspheres and its adsorption of MB dye

Response surface methodology for optimization of methylene blue adsorption onto carboxymethyl cellulose-based hydrogel beads: adsorption kinetics, isotherm, thermodynamics and reusability studies

“…6 These biopolymers show an interesting and attractive alternative as adsorbents for the adsorption of organic dyes because of their abundant functional groups, chemical stability, hydrophilicity and renewability. 7 Typical examples of biopolymers used for the removal of methylene blue from aqueous solutions include carboxymethyl cellulose, 8 immobilized microcrystalline cellulose, 9 chitosan/sepiolite composite, 10 chitin, 11 magnetic carboxymethyl cellulose microspheres, 12 polyacrylamide-sodium alginate microspheres, 13 starch, 14 graphene oxide/calcium alginate composites 15 and activated biomass/alginate beads. 16 To date, graphene oxide (GO), the oxidized form of graphite, 17 has been widely and intensively used as a promising adsorbent for the removal of organic molecules from aqueous solutions.…”

Effect of Green Silver Nanoparticles Embedded in Irradiated Sodium Alginate /Poly Acrylamide on Removal of Dye Wastes

“…Qi et al (2020), utilized the cotton as silver nanoparticles matrix and found a reduction of the immobilized Ag NPs toward methylene blue (MB) reached more than 99%. Zoua et al (2019) and Nizam El-Din et al (2009) prepared polymers from polymerization polyacrylamide (PAM) and Na-Alg monomers. Also, Nizam El-Din et al (2008) prepared Hydrogels based on poly (acrylic acid) and Na-Alg by gamma radiation.…”

Sodium Salicylate Mediated Ionic Liquid Based Catanionic Coacervates as Membrane‐Free Microreactors for the Selective Sequestration of Dyes and Curcumin

“…Widely studied polyelectrolyte based coacervates suffer limited sequestration efficiency at variable pH, whereas the sequestration ability of the fatty acid based coacervates are limited to cationic charged molecules and could not sequester the negatively charged biomolecules such as DNA . Surfactant based complex coacervates formed through the catanionic systems could circumvent these limitations and forms a coacervate system that is stable at varying pH and capable of sequestering the functional materials and biomolecules irrespective to their charge . Moreover, in surfactant based complex coacervate systems, the molecular interactions are predictable and controllable; which are the basis of various tailor made cell‐mimetic membrane free systems and of this investigation too.…”

“…Complex coacervate systems composed of ionic, non‐ionic and zwitterionic surfactants are reported in aqueous medium . Lower pre‐concentration factor of the neat non‐ionic surfactant and non‐ionic/ionic surfactant mixture based coacervates for the charged organic solutes limit their application potential .…”

“…Lower pre‐concentration factor of the neat non‐ionic surfactant and non‐ionic/ionic surfactant mixture based coacervates for the charged organic solutes limit their application potential . Ionic surfactants due to their ionic character provides higher binding sites and so exhibited higher sequestration ability . The sequestration is governed by various non covalent interactions including electrostatic, cation‐π interactions, hydrophobic, hydrogen bonding and van der Waals interactions.…”