Effect of single and binary mixed surfactant impregnation on the adsorption capabilities of chitosan hydrogel beads toward rhodamine B

Abstract

<p>The adsorption of cationic xanthene dye rhodamine B (RhB) on pure chitosan (CS), single surfactant (SDS, Brij30 and DTAB) and binary surfactant (SDS-Brij30 and DTAB-Brij30) modified chitosan beads has been investigated.</p>

Incorporation of Fluorescent Fluorinated Methacrylate Nano-Sized Particles into Chitosan Matrix Formed as a Membranes or Beads

“…Then, the mixture was slowly added dropwise to 25 mL of 1 M NaOH to form CS beads. The method is similar to [29].…”

“…Often surfactants, such as dodecyltrimethylammonium bromide (DTAB), sodium dodecylsulphate (SDS), or polyoxyethylene lauryl ether (Brij30), are added to the chitosan solution. An increase in the surfactant concentration increases the adsorption potential of the chitosan beads [29,36]. The surfactant molecules may bind with CS in the beads because of the interactions through the chains between the CS backbone and the hydrophobic part of the surfactant and through the polar head of surfactants.…”

“…The size of an individual bead was approximately 0.5-1.2 mm. adsorption potential of the chitosan beads [29,36]. The surfactant molecules may bind with CS in the beads because of the interactions through the chains between the CS backbone and the hydrophobic part of the surfactant and through the polar head of surfactants.…”

Polysaccharide-based C-dots and polysaccharide/C-dot nanocomposites: fabrication strategies and applications

“…82,83 Chitosan is a non-toxic polymer with a high adsorption capacity for dyes. 84,85 The presence of amino groups gives some other exceptional properties to chitosan including antioxidant and antibacterial activities. 86,87 Chitosan just like other polysaccharides can be decomposed in nature and is completely compatible with the environment.…”

Excellent regeneration, easy separation and high capacity of 3D chitosan–melamine sponge composites for anionic dye removal

“…Chitosan (CTS), as a natural cationic polysaccharide, is rich in amino and hydroxyl groups, and is widely used due to its characteristics such as excellent adsorption capacity, nontoxicity, hydrophilicity, biodegradability and biocompatibility 17,18 for the treatment of harmful anions in effluents. However, unfortunately, raw chitosan suffers from drawbacks such as low porosity and poor mechanical strength.…”