磁性重金属捕集絮凝剂的制备研究

doi:10.19964/j.issn.1006-4990.2021-0254

无机盐工业 ›› 2022, Vol. 54 ›› Issue (2): 81-84.doi: 10.19964/j.issn.1006-4990.2021-0254

磁性重金属捕集絮凝剂的制备研究

李晓琪(),孙永军(),陈傲文,余圆圆,孙文全,周俊

南京工业大学城市建设学院,江苏南京 211816

收稿日期:2021-04-21 出版日期:2022-02-10 发布日期:2022-03-14
通讯作者: 孙永军
作者简介:李晓琪（1998— ）,女,硕士,研究方向为水处理剂制备与应用;E-mail： 202061224062@njtech.edu.cn。
基金资助:
江苏省自然科学基金面上项目(BK20201362);江苏省第十五批“六大人才高峰”高层次人才资助项目(JNHB-038);江苏省高等学校自然科学研究面上项目(19KJB610002)

Study on preparation of magnetic heavy metal capture flocculant

LI Xiaoqi(),SUN Yongjun(),CHEN Aowen,YU Yuanyuan,SUN Wenquan,ZHOU Jun

College of Urban Construction,Nanjing Tech University,Nanjing 211816,China

Received:2021-04-21 Online:2022-02-10 Published:2022-03-14
Contact: SUN Yongjun

摘要/Abstract

摘要：

以Cu（Ⅱ）去除率和絮凝剂产率为考察目标,制备了壳聚糖基重金属捕集磁性絮凝剂（MC-g-PAM）,通过单因素实验考察了单体含量、总单体浓度、光引发剂浓度、反应时间对实验结果的影响,确定了2种絮凝剂的最佳制备条件。MC-g-PAM最佳合成条件：丙烯酰胺（AM）质量分数为60%、总单体质量分数为35%、光引发剂质量分数为0.04%、反应时间为1.5 h,此时铜（Ⅱ）去除率为83.52%,产率为72.94%。MC-g-PAM因其优良的絮凝螯合性能使其在重金属废水处理领域具有良好的应用前景。

关键词: 絮凝, 磁性絮凝剂, 螯合捕集, 壳聚糖

Abstract:

Taking Cu（Ⅱ） removal rate and flocculant yield as the target indicators,chitosan-based heavy metal trapping magnetic flocculant（MC-g-PAM） was prepared.Single factor experiments were used to investigate monomer content,total monomer concentration,photoinitiator concentration and reaction time,and the best preparation conditions for the two floccu-lants were determined.The best synthesis conditions were：Mass fraction of MC-g-PAM was 60%,mass fraction of total mono-mer was 35%,mass fraction of photoinitiator was 0.04%,and reaction time was 1.5 h.At this time,the removal rate of Cu²⁺ and the production yield were 83.52% and 72.94%,respectively.MC-g-PAM had good application prospect in the field of heavy metal wastewater treatment because of its excellent flocculation and chelating properties.

Key words: flocculation, magnetic flocculant, chelating trapping, chitosan

中图分类号:

TQ138.1

李晓琪,孙永军,陈傲文,余圆圆,孙文全,周俊. 磁性重金属捕集絮凝剂的制备研究[J]. 无机盐工业, 2022, 54(2): 81-84.

LI Xiaoqi,SUN Yongjun,CHEN Aowen,YU Yuanyuan,SUN Wenquan,ZHOU Jun. Study on preparation of magnetic heavy metal capture flocculant[J]. Inorganic Chemicals Industry, 2022, 54(2): 81-84.

图/表 4

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