CAJ | 학술논문

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0.344 mg/g，温度为318 K，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。
위료제고전통각취당재료적흡부효과，장각취당진행교련병통과부재이양화맹진행개성。이용소묘전경대재료진행표정，병연구료이양화맹적부재량、반응온도、용액pH、리자농도대개성교련각취당흡부용액중TC적영향。연구결과표명，재개성교련각취당과립적이양화맹부재량위0.344 mg/g，온도위318 K，pH위4～11，용액중양리자농도위0시흡부효과최가。흡부동역학부합위이급동역학모형，흡부등온선부합Freundich모형，열역학분석설명해흡부과정시자발적흡열반응。령외발현，개성교련각취당전충재관주중지후대TC적련속흡부처리능력량호。
Chitosan was cross-linked and loaded by MnO2 to improve the adsorption capacity of traditional chitosan mate-rial.Scanning electron microscopy(SEM)was used to characterize the materials.The effects of loading MnO2 ,temper-ature,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 ad-dition,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.