聚合离子液体修饰氧化石墨烯吸附剂对亚甲基蓝的吸附性能研究  

Adsorption Performance Study of Polymerized Ionic Liquid Modified Graphene Oxide Adsorbent for Methylene Blue

作　　者：李露露 金绍锋 孙亚明 何丽君[1] Li Lulu;Jin Shaofeng;Sun Yaming;He Lijun(School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《广东化工》2022年第3期21-23,共3页Guangdong Chemical Industry

摘　　要：本研究采用化学合成法制备了一种聚合离子液体修饰的氧化石墨烯吸附剂,聚合离子液体的引入有效的改善了氧化石墨烯不易离心分离的缺点。考察了该吸附剂对水溶液中亚甲基蓝染料的吸附性能,探讨了吸附剂用量、样品溶液pH、吸附时间等实验参数对亚甲基蓝吸附效率的影响;吸附动力学研究的拟合结果表明,其吸附过程更符合伪二级动力学模型。本研究不仅为制备高效、高吸附容量的吸附剂提供了一种新的合成策略,而且为环境水样中亚甲基蓝等染料的去除提供了一种新型材料。In this study, polymeric ionic liquid modified graphene oxide adsorbents were prepared by chemical synthesis method. The introduction of polymeric ionic liquid effectively solved the disadvantage that graphene oxide was not easy to be centrifuged. The adsorption performance of resulting adsorbents for methylene blue dyes in water solution were studied. The effects of experimental parameters on the adsorption efficiency were investigated, such as adsorbent dosage, sample solution pH and adsorption time. The fitting results of adsorption kinetics showed that the adsorption process was in line with the pseudo second-order kinetic model.This study not only provided a new synthetic strategy for the preparation of adsorbents with high adsorption efficiency and high adsorption capacity, but also offered a new material for the removal of methylene blue and other dyes in environmental water samples.

关 键 词：氧化石墨烯 聚合离子液体 化学合成法 吸附剂 亚甲基蓝 

分 类 号：X703[环境科学与工程—环境工程] TQ424[化学工程]