An effective and recyclable adsorbent for the removal of heavy metal ions from aqueous system: Magnetic chitosan/cellulose microspheres

• DOI: 10.1016/j.biortech.2015.07.044
• Publication Date: 2015-07-21T02:33:02Z
• Authors: Xiaogang Luo; Jian Zeng; Shilin Liu; Lina Zhang
• Keywords: Static Electricity; Biocompatible Materials; 02 engineering and technology; Ferric Compounds; 12. Responsible consumption; Magnetics; Metals, Heavy; Sodium Hydroxide; Urea; Cellulose; Chitosan; Temperature; Water; Hydrogen-Ion Concentration; Microspheres; 6. Clean water; Kinetics; Lead; 13. Climate action; Nanoparticles; Adsorption; 0210 nano-technology; Copper; Water Pollutants, Chemical; Cadmium

Development of highly cost-effective, highly operation-convenient and highly efficient natural polymer-based adsorbents for their biodegradability and biocompatibility, and supply of safe drinking water are the most threatening problems in water treatment field. To tackle the challenges, a new kind of efficient recyclable magnetic chitosan/cellulose hybrid microspheres was prepared by sol-gel method. By embedding magnetic γ-Fe2O3 nanoparticles in chitosan/cellulose matrix drops in NaOH/urea aqueous solution, it combined renewability and biocompatibility of chitosan and cellulose as well as magnetic properties of γ-Fe2O3 to create a hybrid system in heavy metal ions removal.