钠基蒙脱土改性聚丙烯酸树脂基吸附剂的制备与性能
Preparation and Properties of Sodium-Based Montmorillonite Modified Polyacrylic Acid Resin-Based Absorbents
冯健铭 1彭凌 1何薇 1李晨晨 1于靖波 1张凌宝 1刘瑞松 1崔鹏1
作者信息
- 1. 合肥工业大学化学与化工学院,安徽合肥 230009
- 折叠
摘要
以丙烯酸(AA)、丙烯酰胺(AM)为共聚单体,钠基蒙脱土(Na-MMT)为改性剂,采用反相悬浮聚合法,制备钠基蒙脱土改性聚丙烯酸树脂基吸附剂.在钠基蒙脱土用量为单体总质量的6％,温度75℃,单体比例AA∶AM为4∶1(质量比),搅拌速度350 rpm,引发剂(APS)用量为单体总质量的1％和交联剂(MBA)用量为单体总质量的0.25％的优化条件下,所制备的钠基蒙脱土改性聚丙烯酸树脂基吸附剂对重金属离子Pb2+、Cu2+的吸附量分别为292.6 mg/g和178.9 mg/g.
Abstract
Sodium montmorillonite modified polyacrylic acid resin-based adsorbent was prepared by inverse suspension po-lymerization using acrylic acid(AA)and acrylamide(AM)as copolymer monomers and sodium montmorillonite(Na-MMT)as modifier.Under the optimized conditions of sodium montmorillonite dosage of 6％of total monomer mass,temper-ature of 75℃,monomer ratio AA∶AM of 4∶1(mass ratio),stirring rate of 350 rpm,initiator(APS)dosage of 1％of total monomer mass and cross-linking agent(MBA)dosage of 0.25％of total monomer mass,the prepared modified polyacrylic resin-based adsorbent was resistant to heavy metal ions.The adsorption amounts of Pb2+and Cu2+were 292.6 mg/g and 178.9 mg/g,respectively.
关键词
钠基蒙脱土/聚丙烯酸/吸附/重金属离子Key words
sodium-based montmorillonite/polyacrylic acid/adsorption/heavy metal ions引用本文复制引用
基金项目
安徽省大学生创新创业训练计划(202210359136)
出版年
2024
NETL
NSTL
万方数据