王忠凯,季军荣,汤睿,陆彩妹,余思珊,李冬冬,童张法,张寒冰,閤明勇

• 1:广西大学资源环境与材料学院
• 2:崇左南方水泥有限公司
• 3:广西大学化学化工学院
• 4:广西北投环保水务集团有限公司

摘要(Abstract)：

为了提高膨润土对Cu(Ⅱ)和Zn(Ⅱ)的吸附性能，采用羧甲基纤维素钠(SCMC)和壳聚糖(CS)通过席夫碱反应形成的复合物(SCMC/CS)对磁性膨润土(MB)进行改性，制备SCMC/CS修饰的磁性膨润土(SC/MB)，研究改性膨润土吸附Cu(Ⅱ)和Zn(Ⅱ)的性能并分析吸附机理。结果表明，SC/MB对Cu(Ⅱ)和Zn(Ⅱ)的吸附符合Langmuir模型，吸附容量分别为483和123mg·g~(-1)；吸附过程符合准二级动力学模型和孔扩散模型。SCMC/CS中的─COOH、─NH_2和─OH提高了材料的磁稳定性和吸附性能，吸附机理包括络合、离子交换、微孔固定和静电吸引作用。总之，SC/MB是一种经济有效的废水重金属吸附材料。

关键词(KeyWords)： 磁性膨润土;有机改性;吸附;Cu(Ⅱ);Zn(Ⅱ)

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金(2020GXNSFAA297036);; 广西石化资源加工及过程强化技术重点实验室主任项目(2020Z008);; 广西钙基材料协同创新中心项目(GJZX2020-4)

作者(Author): 王忠凯,季军荣,汤睿,陆彩妹,余思珊,李冬冬,童张法,张寒冰,閤明勇

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