Microwave Enhanced Synthesis of Sulfonated Chitosan-Montmorillonite for Effective Removal of Methylene Blue

• Published in: Journal of Polymers and the Environment
• Main Author: Abdul Mubarak N.S.; Bahrudin N.N.; Jawad A.H.; Hameed B.H.; Sabar S.
• Format: Article
• Language: English
• Published: Springer 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105851513&doi=10.1007%2fs10924-021-02172-9&partnerID=40&md5=d6391990b572f42ec0d0737597e18fea

In this work, sulfonated chitosan montmorillonite composite (S-CS-MT) beads were synthesized using a microwave irradiation method designed to have a better saving-time procedure. The potency of S-CS-MT as an adsorbent was assessed for the removal of cationic dyes such as methylene blue (MB) from aqueous solution. The batch adsorption experiments indicated that MB adsorption onto S-CS-MT follows the Pseudo-second-order kinetic and Langmuir isotherm model. The maximum extent obtained from the Langmuir isotherm model for MB adsorption was 188.2 mg g−1 at 303 K. The thermodynamic study indicated that the adsorption reaction is favorable and spontaneous in nature. These findings indicated that montmorillonite chitosan grafted with the sulfonate group has the ability and efficacy as biohybrid adsorbent for the adsorption of cationic dyes. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.