摘要
以N-胺乙基哌嗪(AEP)、三乙烯四胺(TETA)、己二胺(HDA)为单体,以迈克尔加成反应为基础,分别与N,N-亚甲基双丙烯酰胺(MBA)反应,制备含有胺基的二元水凝胶。利用单因素控制法,通过改变材料的配比、温度、pH、铅模拟废水的浓度以及吸附时间等条件,探究不同试验条件对材料吸附性能的影响,确定最佳的实验条件。结果表明,随单体配比增大,吸附量均呈现减少的现象;对于pH的响应,三种材料均呈现出强酸性不吸附,弱酸性(pH在5~6)强吸附的现象;对于浓度变化的影响,AEP-MBA更适合在低浓度的废水中使用,而TETA-MBA和HDA-MBA则更适合在高浓度废水中使用。
Binary hydrogels containing amine groups were prepared by reacting N,N-methylene bisacryl amide(MBA)with N-amine ethyl piperazine(AEP),triethylenetetramine(TETA)and hexane diamine(HDA)as monomers,respectively,based on Michael addition reaction.The effect of different experimental conditions on the adsorption performance of the materials was investigated by varying the material proportion,temperature,pH,concentration of lead simulated wastewater and adsorption time using a single factor control method to determine the optimal experimental conditions.The results showed that the adsorption amount showed a decrease with increasing monomer proportion.For the response of pH,all three materials showed strong acidic non-adsorption and weak acidic(pH in 5~6)strong adsorption.For the effect of concentration change,AEP-MBA was more suitable for use in low concentration wastewater,while TETA-MBA and HDA-MBA were more suitable for use in high concentration wastewater.
作者
杜乙鹭
王辉
刘强男
姚大虎
张云鹏
Du Yilu;Wang Hui;Liu Qiangnan;Yao Dahu;Zhang Yunpeng(Department of Environmental Engineering,College of Chemical and Pharmaceutical Engineering,Henan University ofScience and Technology,Luoyang 471023,China;Beijing Construction Environmental Restoration Co.,Ltd.,Beijing 100045,China)
出处
《环境科学与管理》
CAS
2022年第3期103-108,共6页
Environmental Science and Management
基金
国家自然科学基金(No.41201224)
河南省科技攻关项目(No.192102110050)
河南省高等学校青年骨干教师培养计划项目(No.2018GGJS047)。
关键词
二元水凝胶
铅离子
吸附
迈克尔加成反应
binary hydrogel
lead ion
adsorption
Michael addition reaction
