Ni-BDC/琼脂糖复合材料对亚甲基蓝的吸附性能研究  

Adsorption of Methylene Blue by Ni-BDC/Agarose Composite

作　　者：付秋平 袁辉 娄杰 张荣彬 查磊 Fu Qiuping;Yuan Hui;Lou Jie;Zhang Rongbin;Zha Lei(College of Chemical and Material Engineering,Guiyang University,Guiyang 550005,China)

机构地区：[1]贵阳学院化学与材料工程学院,贵州贵阳550005

出　　处：《广东化工》2022年第16期28-31,共4页Guangdong Chemical Industry

基　　金：贵阳市科技局贵阳学院专项资金[GYU-KY-(2022)];2021年国家级大学生创新创业训练计划项目(202110976005)。

摘　　要：本文采用溶剂热法合成金属有机框架材料Ni-BDC,然后将粉末状的Ni-BDC与高分子材料琼脂糖进行复合,得到易于从水中分离的复合材料Ni-BDC/琼脂糖。研究复合材料Ni-BDC/琼脂糖对亚甲基蓝的吸附性能。系统的研究接触时间、亚甲基蓝初始浓度及温度等因素对Ni-BDC/琼脂糖吸附去除亚甲基蓝效果的影响。采用等温吸附模型、吸附动力学模型及吸附热力学对Ni-BDC/琼脂糖吸附亚甲基蓝的作用机理和行为进行探究和分析。Ni-BDC/琼脂糖对亚甲基蓝的吸附更符合Langmuir吸附等温模型和吸附二级动力学模型。Ni-BDC/琼脂糖对亚甲基蓝的吸附过程是吸热的、自发的。In this paper,the metal-organic framework material Ni-BDC was synthesized by the solvothermal method.And then the powdery Ni-BDC was combined with the polymer material agarose to obtain the composite material Ni-BDC/Agarose that was easy to be separated from water.The adsorption properties of Ni-BDC/Agarose for methylene blue were studied.The influence of contact time,initial concentration of methylene blue and temperature on the adsorption effect of methylene blue by Ni-BDC/Agarose were systematically studied.The adsorption mechanism and behavior of methylene blue by Ni-BDC/Agarose were investigated and analyzed by isothermal adsorption model,adsorption kinetics model and adsorption thermodynamics.The adsorption of methylene blue by Ni-BDC/Agarose was in accordance with Langmuir isothermal adsorption model and second-order adsorption kinetics model.The adsorption of methylene blue by Ni-BDC/agarose is endothermic and spontaneous.

关 键 词：Ni-BDC 琼脂糖 复合材料 吸附性能 亚甲基蓝 

分 类 号：X703[环境科学与工程—环境工程]