科学研究

铬离子(Ⅵ)印迹聚合物的制备及性能研究

展开
  • 昆明理工大学理学院,昆明650500
李鹏(1997-),男,硕士研究生,主要研究方向为分子印迹高分子材料。

收稿日期: 2020-06-10

  修回日期: 2021-08-09

  网络出版日期: 2021-11-02

基金资助

国家自然科学基金(地区科学基金)(21764008)

Research on preparation and property of Chromium ion (Ⅵ) imprinted polymer

Expand
  • Faculty of Science,Kunming University of Science and Technology,Kunming 650500

Received date: 2020-06-10

  Revised date: 2021-08-09

  Online published: 2021-11-02

摘要

采用沉淀聚合法,以Cr(Ⅵ)为模板离子,4-乙烯基吡啶(4-VP)为功能单体,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,对功能单体及交联剂的用量、致孔溶剂的种类及用量等实验条件进行了优化,分别制备了17种Cr(Ⅵ)印迹聚合物[Cr(Ⅵ)-IIPs]及相应的非印迹聚合物(NIPs)。结果表明,与非印迹聚合物相比,最优条件下制备的铬离子印迹聚合物Cr(Ⅵ)-IIP16对Cr(Ⅵ)的吸附容量为80.59μmol/g,印迹因子为2.13。结合等温吸附和动力学吸附实验对其进行吸附性能研究;用扫描电镜(SEM)和氮气吸附/脱附(BET)对Cr(Ⅵ)-IIP16及相应的非印迹聚合物(NIP16)进行了结构表征;在竞争离子存在下,结合电感耦合等离子体发射光谱仪(ICP-OES)分析了Cr(Ⅵ)-IIP16的吸附性能及吸附选择性。研究结果表明,Cr(Ⅵ)-IIP16对Cr(Ⅵ)具有较好的选择识别能力和较高的吸附容量,有望用于实际样品中Cr(Ⅵ)的分离去除。

本文引用格式

李鹏, 赵莉, 胡德琼, 刘迎梅, 字富庭, 胡显智, 成会玲 . 铬离子(Ⅵ)印迹聚合物的制备及性能研究[J]. 化工新型材料, 2021 , 49(10) : 159 -164 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.10.034

Abstract

A chromium ion imprinted polymer [Cr(Ⅵ)-IIP] was prepared by the method of precipitation polymerization,Cr(Ⅵ) and 4-vinylpyridine (4-VP) as template ion and functional monomer,and ethylene glycol dimethacrylate (EDMA) as crosslinking agent,respectively.The influence of experimental conditions was also investigated,the amount of crosslinker and solvents,the type of solvents were optimized for obtaining preferable adsorption capacity,and 17 kinds of Cr(Ⅵ)-IIPs and corresponding non-imprinted polymers (NIPs) were synthesized.The results shown that,compared with non-imprinted polymers,the adsorption capacity of the Cr(Ⅵ)-IIP16 prepared under optimal conditions for Cr(Ⅵ) was 80.59μmol/g,and the imprinting factor was 2.13.The performance of Cr(Ⅵ)-IIP16 was studied by isothermal and kinetic adsorption experiments,the structure of Cr(Ⅵ)-IIP16 and NIP16 were characterized by scanning electron microscope (SEM) and nitrogen adsorption/desorption (BET).In the presence of competing ions,combined with inductively coupled plasma emission spectrometer (ICP-OES),the adsorption performance and adsorption selectivity of Cr(Ⅵ)-IIP16 were analyzed.The results shown that Cr(Ⅵ)-IIP16 had a better ability to select and identify Cr(Ⅵ),and Cr(Ⅵ)-IIP was expected to be used for the separation and removal of Cr(Ⅵ) in actual samples.

参考文献

[1] 杨阳,许群.六价铬污染与健康损害研究进展[J].基础医学与临床,2012,32(8):974-978.
[2] 刘芳.还原沉淀法对含铬重金属废水的处理研究[J].环境污染与防治,2014,6(4):54-59.
[3] Tonini G A,Ruotolo L A M.Heavy metal removal from simulated wastewater using electrochemical technology:optimization of copper electrodeposition in a membraneless fluidized bed electrode[J].Clean Technologies & Environmental Policy,2016,19(2):1-13.
[4] 魏国侠,刘汉桥,武振华,等.电渗析法分离医疗垃圾焚烧飞灰浸出液中重金属[J].过程工程学报,2014,14(5):776-781.
[5] 白冬梅.海洋黑曲霉菌丝球去除水中Ni(Ⅱ)和Cr(Ⅵ)及其相关机理研究[D].杭州:浙江大学,2016.
[6] 李爱阳,李大森,胡波年,等.废铁屑-膜分离法处理含铬废水的研究[J].武汉理工大学学报,2008,30(9):72-75.
[7] 朱琳琰,张荣华,朱志良.金属离子印迹技术研究进展[J].化学通报,2010,03(4):326-331.
[8] 李瑞瑞,范忠雷,赵利宽.铜离子印迹聚合物的研究进展[J].化工新型材料,2011(S2):38-43.
[9] 傅骏青,王晓艳,李金花,等.重金属离子印迹技术[J].化学进展,2016,8(1):83-90.
[10] 肖淑娟,李红霞,于守武.分子印迹聚合物在分离领域的应用[J].化工新型材料,2007,35(2):4-5,8.
[11] 张兴,尚宏周,何俊男,等.分子印迹技术在电化学中的应用[J].化工新型材料,2019,47(2):39-42.
[12] 王劲松,包正垒,刘耀驰,等.离子印迹技术及其在重金属污染治理和回收中的应用[J].安全与环境学报,2009(4):61-64.
[13] Fei Z,Fang Z,Peng W,et al.Heavy metal ion imprinted polymerization technology and its application in the wastewater treatment[J].Technology of Water Treatment,2014,40(6):9-13.
[14] 冯银巧,周如金,唐玉斌,等.分子印迹技术在固相萃取中的应用[J].理化检验:化学分册,2011(1):130-133.
[15] 朱彩艳,马慧敏,张强,等.离子印迹聚合物功能单体的研究进展[J].化工进展,2014,33(11):3013-3020.
[16] Urraca J L,Carbajo M C,Torralvo M J,et al.Effect of the template and functional monomer on the textural properties of molecularly imprinted polymers[J].Biosensors & Bioelectronics,2008,24(1):155-161.
[17] 董文国,闫明,张敏莲,等.单体对分子印迹聚合物分子识别能力的影响:量子化学计算与实验研究[J].化工学报,2005(11):99-104.
[18] Tom L A,Schneck N A,Walter C.Improving the imprinting effect by optimizing template:monomer:cross-linker ratios in a molecularly imprinted polymer for sulfadimethoxine[J].Journal of Chromatography B Analytical Technologies in the Biomedical & Life Sciences,2012,909:61-64.
[19] 早热古丽·努尔.分子印迹技术中交联剂和模板方法的选择研究[D].乌鲁木齐:新疆大学,2012.
[20] 范宁伟,赵文生,翦英红.溶剂对香兰素分子印迹聚合物制备的影响[J].化学研究与应用,2009,21(3):327-329.
[21] Dong W G,Yan M,Wu G S,et al.Effect of solvent on molecular recognition of molecularly imprinted polymer:experimental investigation and computational quantum chemistry analysis[J].CIESC Journal,2005,56(7):1247-1252.
[22] Liu J,Meng F P.Influence of solvents and functional monomers on preparation of methyl parathion molecularly imprinted polymers[J].Journal of Chemical Engineering of Chinese Universities,2009,23(6):967-972.
Options
文章导航

/