U（Ⅵ）吸附偕胺肟化聚丙烯腈薄膜的制备条件优化

doi:10.13491/j.issn.1004-714X.2022.02.013

中国辐射卫生

2022, Vol. 31

Issue (2): 204-209 DOI: 10.13491/j.issn.1004-714X.2022.02.013

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U（Ⅵ）吸附偕胺肟化聚丙烯腈薄膜的制备条件优化

陈佳琪¹, 程晚亭¹, 许文达², 刘鹏^1,3, 马福秋^1,3, 薛云^1,3

1. 哈尔滨工程大学，核科学与技术学院，黑龙江哈尔滨 150001;
2. 烟台市标准计量检验检测中心国家蒸汽流量计量站，山东烟台 264000;
3. 哈尔滨工程大学，哈尔滨工程大学烟台研究院，山东烟台 264006

Optimization of conditions for preparation of amidoximated polyacrylonitrile membrane for U (VI) adsorption

CHEN Jiaqi¹, CHENG Wanting¹, XU Wenda², LIU Peng^1,3, MA Fuqiu^1,3, XUE Yun^1,3

1. College of nuclear science and technology, Harbin Engineering University, Harbin 150001 China;
2. Yantai Standard Metrology Inspection & Test Center National Steam Flowrate Measurement Station, Yantai 264000 China;
3. Yantai Research Institute, Harbin Engineering University, Yantai 264006 China

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摘要目的制备一种便于回收、重复使用的偕胺肟化聚丙烯腈（PAO）薄膜吸附剂，并优化制备条件。方法以聚丙烯腈（PAN）粉末为原料，用非溶剂致相分离法制备了PAO薄膜，研究不同制备条件下PAO薄膜对U（Ⅵ）的吸附性能，考察制备铸膜液时PAN浓度、偕胺肟化温度和时间以及吸附前碱处理对PAO薄膜对U（Ⅵ）吸附性能的影响。结果碱处理会显著提高PAO薄膜对U（Ⅵ）的吸附性能，碱处理温度和时间均会影响最终的U（Ⅵ）吸附效果，最佳碱处理条件为用0.1 mol/L NaOH在60℃处理80 min；合成铸膜液时PAN含量、偕胺肟化温度和时间都会影响PAO薄膜的吸附性能，最佳合成条件为：PAN浓度10wt%，65℃偕胺肟化反应18 h，在此条件下合成的PAO薄膜经最佳碱处理条件处理后的吸附容量可达255 mg/g。结论 PAO薄膜制备方法简单，吸附容量高，便于从水体中收集复用，是一种理想的用于吸附废水中U（Ⅵ）的吸附剂材料。

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关键词 ：偕胺肟, 薄膜, 吸附, U(Ⅵ)

收稿日期: 2021-10-16

O622.6

通讯作者: 马福秋，E-mail：mafuqiu@hrbeu.edu.cn E-mail: mafuqiu@hrbeu.edu.cn

作者简介: 陈佳琪（1996—），女，内蒙古赤峰人，哈尔滨工程大学，硕士研究生，研究方向：吸附法处理模拟放射性废水。E-mail：1129778240@qq.com

引用本文:

陈佳琪, 程晚亭, 许文达, 刘鹏, 马福秋, 薛云. U（Ⅵ）吸附偕胺肟化聚丙烯腈薄膜的制备条件优化[J]. 中国辐射卫生, 2022, 31(2): 204-209.
CHEN Jiaqi, CHENG Wanting, XU Wenda, LIU Peng, MA Fuqiu, XUE Yun. Optimization of conditions for preparation of amidoximated polyacrylonitrile membrane for U (VI) adsorption. , 2022, 31(2): 204-209.

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