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钠基蒙脱土改性聚丙烯酸树脂基吸附剂的制备与性能

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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.
Preparation and Properties of Sodium-Based Montmorillonite Modified Polyacrylic Acid Resin-Based Absorbents
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.

sodium-based montmorillonitepolyacrylic acidadsorptionheavy metal ions

冯健铭、彭凌、何薇、李晨晨、于靖波、张凌宝、刘瑞松、崔鹏

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合肥工业大学化学与化工学院,安徽合肥 230009

钠基蒙脱土 聚丙烯酸 吸附 重金属离子

安徽省大学生创新创业训练计划

202210359136

2024

10.3969/j.issn.1008-553X.2024.01.009

安徽化工
安徽省化工研究院

安徽化工

影响因子：0.229
ISSN：1008-553X
年,卷(期)：2024.50(1)
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