紫外分光光度法对聚丙烯类树脂吸附Pb2+的效果研究  

Adsorption Effect of Polypropylene Resin for Pb by Ultraviolet Spectrophotometry

作　　者：刘立华[1] 刘会媛[1] 贾静娴[1] 杨笑春[1] Liu Lihua;Liu Huiyuan;Jia Jingxian;Yang Xiaochun(Department of Chemistry,Tangshan Nornal University,Tangshan 063000)

机构地区：[1]唐山师范学院化学系,河北唐山063000

出　　处：《南开大学学报（自然科学版）》2020年第6期92-96,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：河北省教育厅教改项目(2016GJJG181);唐山师范学院2018年大学生创新创业训练计划项目(CX201811)。

摘　　要：实验采用紫外分光光度法,以聚丙烯树脂和聚丙烯酰胺树脂作为吸附剂,对Pb^2+进行吸附研究,考察吸附温度、吸附时间、金属离子的浓度、pH值、吸附剂用量等影响因素对吸附效果的影响,从而确定最佳的吸附条件.结果表明:吸附温度为20℃,吸附时间为20 min,吸附剂树脂用量为20 g·g^-1,pH值为4.0,Pb^2+溶液浓度为300 mg·L^-1时,吸附效果最佳.Polypropylene resin and polyacrylamide resin were used as adsorbents to adsorb Pb^2+by ultraviolet spectrophotometry in the experiment.The effects of adsorption temperature,adsorption time,concentration of metal ions,pH value and dosage of adsorbents on the adsorption effect were investigated.The experimental results show that optimum adsorption conditions are as follows,the temperature is 20℃,adsorption time is 20 min,resin dosage is 20g·g^-1,pH=4.0,Pb^2+solution concentration is 300 mg·L^-1.

关 键 词：聚丙烯 聚丙烯酰胺 吸附 金属离子 紫外分光光度法 

分 类 号：O657.32[理学—分析化学]