以pb2+为模版分子,在硅胶表面接枝双硫腙,利用溶胶-凝胶法合成一种pb2+显色印迹吸附剂(MIPs).采用红外(IR)和扫描电镜(SEM)对MIPs进行了表征.通过平衡吸附实验,研究了MIPs的吸附性能、显色性能和其对pb2+的选择识别性能.结果表明,双硫腙通过与硅胶形成氢键而接枝在硅胶表面；MIPs对pb2+的显色限为10μmol/L;在Cd2+存在的条件下,其对pb2+的相对选择系数为250;MIPs对pb2+的吸附可以用Langmiur等温吸附方程来拟合,吸附焓变为66.054kJ/mol.制备的MIPs在5min内吸附率可以达到97％,可以用于含铅废水中pb2+的分离和测定.
参考文献
| [1] | 侯长军,黄清菁,霍丹群,杨眉,法焕宝,张良,沈才洪,张宿义.氧化乐果分子印迹微球的制备及其性能研究[J].功能材料,2011(12):2233-2236,2240. |
| [2] | Li Hui;Li Yuzhuo;Li Zhiping et al.Preparation and evaluation of berberine-Cl imprinted polymers by using silica-gel as sacrificed materials[J].Journal of Functional Materials,2012,43(06):684-687. |
| [3] | Huo Pengwei;Lu Ziyang;Liu Xinlin et al.Preparation photocatalyst of selected photodegradation antibiotics by molecular imprinting technology onto TiO2/fiy-ash ceno spheres[J].Chemical Engineering Journal,2012,189-190:75-83. |
| [4] | Huamin Qiu;Chuannan Luo;Min Sun;Fuguang Lu;Lulu Fan;Xiangjun Li .A novel chemiluminescence sensor for determination of quercetin based on molecularly imprinted polymeric microspheres[J].Food Chemistry,2012(1):469-473. |
| [5] | Donato L;Figoli A;Drioli E .Novel composite poly(4-vinylpyridine)/polypropylene membranes with recognition properties for (S)-naproxen.[J].Journal of Pharmaceutical and Biomedical Analysis: An International Journal on All Drug-Related Topics in Pharmaceutical, Biomedical and Clinical Analysis,2005(5):1003-1008. |
| [6] | Yan Liu;Zhanchao Liu;Jie Gao;Jiangdong Dai;Juan Han;Yun Wang;Jimin Xie;Yongsheng Yan .Selective adsorption behavior of Pb(II) by mesoporous silica SBA-15-supported Pb(II)-imprinted polymer based on surface molecularly imprinting technique[J].Journal of hazardous materials,2011(1):197-205. |
| [7] | 王玲玲,闫永胜,邓月华,李春香,徐婉珍.铅离子印迹聚合物的制备、表征及其在水溶液中的吸附行为研究[J].分析化学,2009(04):537-542. |
| [8] | 张东,任广军,徐亮子.有机皂土的双硫腙修饰及其对水中铅离子的吸附行为[J].化工学报,2008(06):1535-1540. |
| [9] | 杨潇,张朝晖,张华斌,张明磊,胡宇芳,罗丽娟,聂丽华.基于壳聚糖修饰碳纳米管表面铅离子印迹材料的制备及其性能研究[J].分析化学,2011(01):34-38. |
| [10] | 李健生,苗小郁,易睿,郝艳霞,孙秀云,刘晓东,王连军.巯基功能化介孔氧化硅的合成及其对Pb（Ⅱ）的吸附[J].功能材料,2007(08):1386-1388. |
| [11] | 隋学叶,刘世权,程新.正硅酸乙酯的水解缩聚反应及多孔SiO2粉体的制备[J].中国粉体技术,2006(03):35-39. |
| [12] | 谢发之,宣寒,葛业君,王颖,曹田,张克华.双模板铅离子印迹吸附剂的制备及其应用于环境水及沉积物样品中铅的选择性吸附[J].分析化学,2011(01):77-81. |
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