Synthesis and characterization of a novel benzothiazole functionalized chitosan and its use for effective adsorption of Cu(II).

摘要: Abstract Contamination of water with the copper(II) ions leads to serious diseases such as liver damage and cancer. This deadly effect prompted us target synthesis a novel functionalized chitosan (Cs-BT) be used an adsorbent for removing from aqueous solution. The functionalization was done by introducing benzothiazole moiety into (Cs) chain confirmed full disappearance NH2 band in FT-IR spectrum adsorbent. TGA-DTG analysis revealed that reduced thermal stability compared pure chitosan. adsorption evidenced SEM EDX analysis. study demonstrated optimal conditions were 120 min contact time, pH = 6, initial Cu(II) concentration 200 mg/L. At these conditions, Cs-BT achieved maximum copper capacity 1439.7 mg/g. Consequently, could promising efficient Cu treatment. Study kinetics isotherms manifested pseudo-first-order better than pseudo-second-order Temkin isotherm Langmuir, Freundlich, Dubinin–Radushkevich explaining process. calculated thermodynamic parameters implied spontaneity endothermic nature