Efficient adsorption and separation of organic dyes in the wastewater is highly desirable for environmental protection. A facile synthesis of magnetic bio-based chitosan (CS) microspheres grafted with sodium polystyrene sulfonate (SPSS) via electron beam radiation is described. The obtained microspheres were characterized by FTIR, SEM, TG and VSM, which demonstrated millimetric magnetic CS-g-SPSS microspheres were obtained with enhanced thermal stability. Experimental parameters such as absorbed dosage, mass ratio, initial pH, initial concentration and contact time for the adsorption were thoroughly investigated. To investigate the adsorption rate and recyclability, evaluation of adsorption kinetic model and adsorption/desorption experiment were conducted.

废水中有机染料的有效吸附和分离对于环境保护是非常需要的。描述了通过电子束辐射与聚苯乙烯磺酸钠 (SPSS) 接枝的磁性生物基壳聚糖 (CS) 微球的简便合成。获得的微球通过FTIR、SEM、TG和VSM进行表征，表明获得了具有增强热稳定性的毫米级磁性CS-g-SPSS微球。对吸附剂量、质量比、初始pH、初始浓度和吸附接触时间等实验参数进行了彻底研究。为了研究吸附速率和可回收性，进行了吸附动力学模型和吸附/解吸实验的评估。