中文摘要：

为了提高传统壳聚糖材料的吸附效果，将壳聚糖进行交联并通过负载二氧化锰进行改性。利用扫描电镜对材料进行表征，并研究了二氧化锰的负载量、反应温度、溶液pH、离子浓度对改性交联壳聚糖吸附溶液中TC的影响。研究结果表明，在改性交联壳聚糖颗粒的二氧化锰负载量为0．344mg／g，温度为318K，pH为4～11，溶液中阳离子浓度为0时吸附效果最佳。吸附动力学符合伪二级动力学模型，吸附等温线符合Freundich模型，热力学分析说明该吸附过程是自发的吸热反应。另外发现，改性交联壳聚糖填充在管柱中之后对TC的连续吸附处理能力良好。

英文摘要：

Chitosan was cross-linked and loaded by MnO2 to improve the adsorption capacity of traditional chitosan material. Scanning electron microscopy（SEM） was used to characterize the materials. The effects of loading MnO2, temperature, pH and ion concentration on the adsorption of TC were investigated comprehensively. When loading rate of MnO2 was 0. 344 mg/g, T=318 K, pH =4 - 11, and the ion concentration was 0, the adsorption efficiency was the best. Pseudo-second-order kinetic model and Freundlich adsorption isotherm fitted well to the adsorption process In addition, the adsorption process was spontaneous and endothermic. The results also showed that the new chitosan material performed well after being filled in column by continuous operation.