以Ce(Ⅳ)为模板、二乙烯三胺(DETA)为螯合剂、丙烯酸(AA)为功能单体,在AB-8树脂表面进行水热聚合反应,制备出铈离子印迹聚合物(Ce-DETA-IIPs)。采用红外光谱(FT-IR)、比表面积分析(BET)和X-衍射(XRD)进行表征。通过Ce-DETA-IIPs的吸附试验、考察了吸附性能。结果表明,在初始浓度350mg/L、吸附90min、温度为298K,Ce-DETA-IIPs对Ce(Ⅳ)的吸附量和吸附率分别达到174.03mg/g和99.38%,Ce-DETA-IIPs对几种金属离子的选择性系数QCe(Ⅳ)/QCa(Ⅱ)、QCe(Ⅳ)/QAl(Ⅲ)、QCe(Ⅳ)/QFe(Ⅲ)、QCe(Ⅳ)/QMg(Ⅱ)和QCe(Ⅳ)/QZn(Ⅱ)分别达到26.73、12.99、10.40、8.91和7.00。
The cerium ion imprinted polymers (Ce-DETA-IIPs) was prepared by hydrothermal polymerization of cericum ion(Ⅳ) used as target ion,DETA used as chelating agent and AA was used as functional monomer of molecular imprinting technique on AB-8 resin surface.The structure were characterized by infrared spectroscopy (FT-IR),X-ray diffractometer (XRD) and specific surface area analysis (BET).The adsorption conditions and adsorption properties of Ce-DETA-IIPs were investigated by adsorption experiment.The results showed that the adsorption quantities of Ce-DETA-IIPs on Ce(Ⅳ) achieved 174.03mg/g,and the adsorption rate was 99.38% when the initial concentration was 350mg/L,adsorption temperature was 298K,pH was 2 and time was 90min.The selectivity coefficients of Ce-DETA-IIPs for several metal ions of QCe(Ⅳ)/QCa(Ⅱ),QCe(Ⅳ)/QAl(Ⅲ),QCe(Ⅳ)/QFe(Ⅲ),QCe(Ⅳ)/QMg(Ⅱ) and QCe(Ⅳ)/QZn(Ⅱ) were 26.73,12.99,10.40,8.91 and 7.00,respectively.
[1] 张贝克,余江,廖洋,等.外源稀土Ce3+对紫背浮萍光合作用和水体富营养化的影响[J].中国稀土学报,2012(2):236-242.
[2] 李荣,陈伦军,苏明,等.铈元素对铸造铝合金多路阀阀体材料性能影响[J].有色金属工程,2017,7(4):27-31.
[3] 代方方,张诣为,贾敏杰,等.稀土元素掺杂的铜基催化剂用于柴油车尾气中碳烟催化氧化的研究[J].陕西科技大学学报,2019,37(1):77-81.
[4] 徐莺,戴宗明,龚大兴,等.贵州某地二叠系宣威组富稀土岩系稀土元素赋存状态研究[J].矿产综合利用,2018(6):90-94,101.
[5] 娄伦武,赵宗尧,卓知杰,等.硫酸分解伴生稀土磷矿综合回收稀土研究现状[J].化肥工业,2018,45(2):10-14.
[6] 谢宏,朱立军.贵州寒武纪梅树村期磷块岩稀土元素存在形式研究[J].中国矿业,2012,21(6):65-70.
[7] 吴林,张杰.磷矿酸解过程硫酸钙结晶及磷石膏中稀土浸出研究[J].化工矿物与加工,2016(3):8-10,13.
[8] 王晓艳,李金花,陈令新.分子印迹材料的先进制备技术与策略[J].科学通报,2019(13):1352-1367.
[9] 占昌朝,曹小华,金文雄,等.以水杨酸为模板分子的Nd掺杂分子印迹TiO2的制备及光催化性能[J].材料导报,2019(6):947-953.
[10] 张琪,张红,周强,等.灭多威分子印迹光子晶体传感器的制备及应用[J].分析化学,2019(6):883-889.
[11] Dajan J,Rohner Nathan A,Recum A.Molecular Imprinting of cyclodextrin supramolecular hydrogels improves drug loading and delivery[J].Macromolecular Bioscience,2019,19(1):246-257.
[12] 周进康,李小平,吴坤,等.丹参素分子印迹聚合物的制备及吸附性能研究[J].化学研究与应用,2014,26(4):501-507.
[13] Ahmad I,Ahmad S,Samiullah Q,et al.Synthesis and characterization of molecular imprinted nanomaterials for the removal of heavy metals from water[J].Journal of Materials Research and Technology,2018,7(3):270-282.
[14] Angkana C,Chalida P,Chalermporn T,et al.Synthesis of copper(Ⅱ) ion imprinted polymers via suspension polymerization[J].Polymers for Advanced Technologies,2018,29(12).3134-3141.
[15] Hastuti B,Siswanta D,Mudasir J,et al.Kinetic and thermodynamic biosorption of Pb(Ⅱ) by using carboxymethyl chitosan-pectin-BADGE-Pb(Ⅱ)-imprinted ion polymer adsorbent[J].Bulletin of Materials Science,2019,42(4):1-5.
[16] 骆微,叶晓霞,朱墨书棋,等.纤维素基分子印迹吸附剂的制备及性能研究[J].化工新型材料,2017,45(2):142-144.
[17] 路晏红,祝方,杨利,等.脲基功能化苯酚印迹聚合物的合成及其对苯酚的吸附研究[J].化工新型材料,2017,45(12):155-159.
[18] 赵旭初,闫静.偶氮胂Ⅲ褪色分光光度法对多糖铈复合物中铈的测定[J].分子科学学报,2015,31(5):400-404.
[19] 孟启,刘培萍,刘江,等.多胺修饰聚苯乙烯大孔吸附树脂的制备及性能研究[J].化工新型材料,2018(6):141-143.
[20] 高烨,王威,庞丽云.一步法制备糖蜜基活性炭及其界面吸附行为[J].高等学校化学学报,2017,38(12):2156-2162.
[21] 熊春华,杨丽群,姚彩萍.D113弱酸性树脂对铟(Ⅲ)的吸附性能[J].高校化学工程学报,2012,26(1):43-48.
