Synthesis of a perfluorooctanoic acid molecularly imprinted polymer for the selective removal of perfluorooctanoic acid in an aqueous environment

吸附 全氟辛酸 化学 分子印迹聚合物 乙二醇二甲基丙烯酸酯 水溶液 吸附 沉淀聚合 朗缪尔吸附模型 解吸 聚合 选择性吸附 色谱法 核化学 聚合物 选择性 有机化学 自由基聚合 材料科学 甲基丙烯酸 催化作用 复合材料
作者
Fengmei Cao,Lei Wang,Xinhao Ren,Hongwen Sun
出处
期刊:Journal of Applied Polymer Science [Wiley]
卷期号:133 (15) 被引量:23
标识
DOI:10.1002/app.43192
摘要

ABSTRACT Perfluorooctanoic acid (PFOA) contamination in the environment is a global problem. The aqueous phase is the main medium for PFOA because of its moderate solubility. Adsorption is a feasible way to remove PFOA because of its chemical and biological stability. In this study, a new type of molecularly imprinted polymer (MIP) for the selective adsorption of PFOA in aqueous solutions was synthesized by the precipitation polymerization method with PFOA as the template molecule after optimization. The adsorption kinetics and isotherms of the MIP adsorbent toward PFOA were studied, and the effects of the pH and cations on the adsorption were investigated with batch experiments. The results show that acrylamide (AAM) was the best functional monomer, and the optimal molar ratio of PFOA to AAM to ethylene glycol dimethacrylate (crosslinker) was 1:6:25. The optimized MIP adsorbent had a high affinity for PFOA, and the uptake percentage by the MIP adsorbent was 1.3–2.5 times that of the nonimprinted polymer (NIP) when PFOA existed alone. A maximum PFOA sorption capacity of 5.45 mg/g based on the Langmuir isotherm model was achieved with the MIP adsorbent. The MIP adsorbent exhibited a high selectivity for PFOA over competitive compounds (other perfluorinated alkyl carboxylic and sulfonic acids), whereas the NIP did not. Approximately 90% of the PFOA in the mixture was removed by the MIP adsorbent; this was 18 times that of the NIP. Moreover, the regenerability of the MIP adsorbent was confirmed in five sequential adsorption–desorption cycles without a significant reduction in the PFOA uptake. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43192.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
科研通AI5应助小谢采纳,获得30
1秒前
李健应助lixin1924采纳,获得10
2秒前
传奇3应助布总采纳,获得10
2秒前
3秒前
3秒前
赘婿应助amumu采纳,获得10
3秒前
隐形曼青应助余三心采纳,获得10
4秒前
天天向上发布了新的文献求助10
4秒前
研友_8KXkJL完成签到 ,获得积分10
4秒前
长安遗梦完成签到,获得积分10
4秒前
晨曦完成签到,获得积分10
5秒前
5秒前
5秒前
科研发布了新的文献求助10
6秒前
hopen发布了新的文献求助10
8秒前
ztt发布了新的文献求助10
8秒前
不倒立应助Prandtl采纳,获得10
9秒前
木木发布了新的文献求助10
9秒前
WOLF发布了新的文献求助10
9秒前
良辰应助kuhei采纳,获得50
9秒前
乐观小之发布了新的文献求助10
10秒前
11秒前
11秒前
稳重的安萱完成签到,获得积分10
12秒前
AireenBeryl531应助julia采纳,获得10
12秒前
xs应助wpy采纳,获得20
12秒前
CipherSage应助专一的台灯采纳,获得10
13秒前
13秒前
梦黎给梦黎的求助进行了留言
13秒前
微笑的语芙完成签到 ,获得积分10
14秒前
15秒前
16秒前
16秒前
17秒前
17秒前
科研完成签到,获得积分10
17秒前
梦梦完成签到 ,获得积分10
17秒前
爱吃年糕的朱应助shuhaha采纳,获得20
18秒前
专一的台灯完成签到,获得积分10
19秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Les Mantodea de Guyane Insecta, Polyneoptera 1000
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 820
England and the Discovery of America, 1481-1620 600
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3572918
求助须知:如何正确求助?哪些是违规求助? 3143123
关于积分的说明 9450025
捐赠科研通 2844501
什么是DOI,文献DOI怎么找? 1563562
邀请新用户注册赠送积分活动 731886
科研通“疑难数据库(出版商)”最低求助积分说明 718698