科学研究

醋酸纤维素复合膜吸附剂的制备及其吸附双酚A的研究

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  • 1.红河卫生职业学院药学系,蒙自661100;
    2.云南大学化学科学与工程学院,昆明650091
刘超(1986-),男,硕士,讲师,主要从事环境污染物吸附剂的开发与利用研究,E-mail:375495264@qq.com。

收稿日期: 2020-05-31

  修回日期: 2020-09-16

  网络出版日期: 2021-01-21

基金资助

国家自然科学基金(21163023)

Study on preparation of cellulose acetate composite membrane adsorbent and adsorption for bisphenol A

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  • 1. Department of Pharmacy,Honghe Health Vocational College,Mengzi 661100;
    2. Faculty of Chemistry and Chemistry Engineering,Yunnan University,Kunming 650091

Received date: 2020-05-31

  Revised date: 2020-09-16

  Online published: 2021-01-21

摘要

双酚A(BPA)是一种典型的环境内分泌干扰物,可严重影响人和动物的生长和繁殖。采用溶剂蒸发法技术制备了醋酸纤维素复合膜吸附剂[CA-Ms(X)]。以醋酸纤维素膜(CA)作为比较对象,利用扫描电子显微镜(SEM)和傅里叶变换红外光谱(FT-IR)对CA-Ms(X)进行表征,并对其吸附动力学、吸附等温线及材料的重复利用性能进行了研究。结果表明:CA-Ms(X)经过720min达到吸附平衡,吸附过程符合准二级动力学模型及Langmuir吸附等温方程,理论最大吸附容量比CA吸附容量提高了4倍左右,循环使用5次后,其对BPA的去除效率基本上可以维持在70%左右。

本文引用格式

刘超, 蒋峰芝 . 醋酸纤维素复合膜吸附剂的制备及其吸附双酚A的研究[J]. 化工新型材料, 2020 , 48(12) : 196 -199 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.046

Abstract

As a typical endocrine disrupting chemicals,bisphenol A (BPA) can seriously disturb the growth and reproducing of human and animals.The Cellulose acetate composite membrane adsorbent[CA-Ms(X)] was synthesized by solvent evaporation method.The prepared CA-Ms(X) was characterized using SEM and FT-IR,and the characters of adsorption and repeatability were investigated comparing to cellulose acetate membrane(CA).The results showed that the adsorption equilibrium time was 720min.The equilibrium data fitted well to the pseudo-second-order kinetic and the Langmuir model for BPA binding onto CA-Ms(X),respectively.The theoretical maximum adsorption capacity of BPA was four times higher than that of CA.After 5 times of recycling,the removal efficiency of BPA was almost 70%.

参考文献

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