Cu-BTC@聚合物复合球的制备及其对水中NaCl的去除性能
以Cu2+交联的羧甲基纤维素(CMC)/海藻酸钠(SA)聚合物凝胶球为前驱体,采用简单溶剂热法在球体内部原位合成了铜-均苯三甲酸金属有机框架(Cu-BTC)。对Cu-BTC@聚合物(Cu-BTC@CMC/SA)的微观形貌、官能团及晶体结构进行了表征,考察了其吸附去除水中NaCl的性能和机理。结果表明,该复合材料在中性条件(pH=7)对NaCl的吸附效果最佳,且吸附过程迅速,初始20 min内即可达到平衡吸附量的90.7%。该复合材料吸附NaCl的过程符合准二级反应动力学模型和Langmuir模型 ...
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