Indole-functionalized cross-linked chitosan for effective uptake of uranium(vi) from aqueous solution

Abstract

Herein, a novel indole-modified cross-linked chitosan aerogel (IAA-CTSA) was fabricated by grafting 3-indoleacetic acid onto chitosan and adding glutaraldehyde as crosslinking agent through a facile two-step one pot method. The...

Quaternary biocomposite of chitosan-polyvinyl alcohol/food grade algae/ montmorillonite clay for cationic methyl violet 2B dye removal: Optimization and desirability functions

“…Nevertheless, CS has significant limitations that hinder its use, such as its vulnerability to dissolving in acidic environments and its poor mechanical strength, leading to inadequate adsorption capacities [21]. Various methods such as compositing [22], crosslinking [23], and grafting [24] are employed to enhance the adsorption qualities and chemical traits of chitosan. Cross-linking reaction with various crosslinking agents can offer better chemical stability and mechanical strength for CS [25].…”

Preparation of straw-reinforced grafted starch composite adsorbent for the treatment of textile printing and dyeing wastewater

“…Secondly, being a polysaccharide-based compound, starch has poor stability and it can be easily degraded under the action of acid, alkali, or microorganisms, which leads to a short lifespan. 16 Thirdly, currently starch-based adsorbents mostly appear in an amorphous powder form, which has increased the difficulty for their usage and recovery process and thus causes great inconvenience for continuous operation. 17 These limitations of starch-based adsorbents have some restrictions in their industrialized application.…”