乙二胺改性聚苯乙烯树脂对水体中铅(Ⅱ)、铬(Ⅵ)的吸附研究  

Adsorption study of lead(Ⅱ)and chromium(Ⅵ)in water by ethylenediamine-modified polystyrene resin

作　　者：史舒焕 董岁明[1,2,3] Shi Shuhuan;Dong Suiming(School of Water and Environment,Chang'an University,Xi'an 710054;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education,Chang'an University,Xi'an 710054;Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources,Chang'an University,Xi'an 710054)

机构地区：[1]长安大学水利与环境学院,西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,西安710054 [3]长安大学水利部旱区生态水文与水安全重点实验室,西安710054

出　　处：《化工新型材料》2024年第2期201-205,共5页New Chemical Materials

基　　金：国家自然科学基金(42077370)。

摘　　要：采用乙二胺对氯甲基化聚苯乙烯树脂进行改性,利用改性后的树脂去除溶液中的铅(Ⅱ)和铬(Ⅵ)。通过改变pH、时间、浓度和吸附剂投加量,确定最佳吸附实验条件,得到改性后的树脂对铅(Ⅱ)和铬(Ⅵ)的最大吸附容量分别为119.60mg/g和128.28mg/g。动力学研究表明,该模型符合Langmuir模型。The current study aimed to modify chloromethylated polystyrene resin with ethylenediamine,and the modified resin was utilized to eliminate lead(Ⅱ)and chromium(Ⅵ)from the solution.The optimum adsorption experimental parameters were identified by varying pH,time,concentration,and adsorbent dosage,resulting in a maximum adsorption capacity of 119.60mg/g and 128.28mg/g for lead(Ⅱ)and chromium(Ⅵ),respectively.Furthermore,the kinetic studies indicated that the model accorded with the Freundlich model.

关 键 词：阳离子树脂 铅 铬 重金属离子 

分 类 号：TQ423.9[化学工程] X53[环境科学与工程—环境工程]