以SiO2为载体,4-乙烯基吡啶为功能单体,结合牺牲载体法合成了一种具有特异性识别4-甲基二苯并噻吩的中空型分子印迹聚合物.利用傅立叶变换红外光谱、氮气吸附实验、扫描电镜对形态结构进行了表征.通过在模拟油中的静态吸附试验,对印迹聚合物的吸附性能进行了研究.结果表明,在SiO2表面成功地合成了具有多孔结构的分子印迹层,经过牺牲载体法处理后得到的中空分子印迹聚合物具有更好的表面特性,提高了吸附性能.中空型分子印迹聚合物对4-甲基二苯并噻吩表现出良好的特异性识别性能,吸附动力学满足Langergren准二级动力学方程,等温线符合Freundlich等温线模型,吸附热力学研究表明吸附是自发的吸热过程,在328K下的吸附容量为18.31498mg/g,吸附平衡时间为3h.
参考文献
| [1] | Gong Xuzhong;Wang Mingyong;Wang Zhi et al.Desulfuration of electrolyzed coal water slurry in HCl system with ionic liquid addition[J].Fuel Processing Technology,2012,99:6-12. |
| [2] | Gong Y J;Dou T;Kang S J .Deep desulfurization of gasoline using ion-exchange zeolites:Cu(Ⅰ)-and Ag(Ⅰ)-beta[J].Fuel Processing Technology,2009,90:122-129. |
| [3] | Wei Dai;Yaping Zhou;Shengqiang Wang .Desulfurization of transportation fuels targeting at removal of thiophene/benzothiophene[J].Fuel Processing Technology,2008(8):749-755. |
| [4] | Huang D;Wang YJ;Yang LM;Luo GS .Chemical oxidation of dibenzothiophene with a directly combined amphiphilic catalyst for deep desulfurization[J].Industrial & Engineering Chemistry Research,2006(6):1880-1885. |
| [5] | Dishun Zhao;Yanan Wang;Erhong Duan .Oxidation desulfurization of fuel using pyridinium-based ionic liquids as phase-transfer catalysts[J].Fuel Processing Technology,2010(12):1803-1806. |
| [6] | Meille V.;Schulz E. .Hydrodesulfurization of 4-methyl-dibenzothiophene:a detailed mechanistic study[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2000(2):179-186. |
| [7] | Kwak C.;Bae JS.;Choi K.;Moon SH.;Lee JJ. .Hydrodesulfurization of DBT, 4-MDBT, and 4,6-DMDBT on fluorinated CoMoS/Al2O3 catalysts[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2000(1/2):233-242. |
| [8] | 董群,王德秋,张广源,冉玉霞.固体吸附剂在FCC汽油深度脱硫中的研究进展[J].化工进展,2008(05):654-659. |
| [9] | Yang, Y.;Liu, X.;Guo, M.;Li, S.;Liu, W.;Xu, B. .Molecularly imprinted polymer on carbon microsphere surfaces for adsorbing dibenzothiophene[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2011(1/3):379-385. |
| [10] | Gao, BJ;Lu, JH;Chen, ZP;Guo, JF .Preparation and recognition performance of cholic acid-imprinted material prepared with novel surface-imprinting technique[J].Polymer: The International Journal for the Science and Technology of Polymers,2009(14):3275-3284. |
| [11] | Li Y;Yin XF;Chen FR;Yang HH;Zhuang ZX;Wang XR .Synthesis of magnetic molecularly imprinted polymer nanowires using a nanoporous alumina template[J].Macromolecules,2006(13):4497-4499. |
| [12] | Sergeyeva T A;Matuschewski H;Piletsky S A et al.Molecularly imprinted polymer membranes for substance-selective solid-phase extraction from water by surface photo-grafting polymerization[J].Journal of Chromatography A,2001,907:89-99. |
| [13] | Ye Lei;Mosbach K .Molecular imprinting:synthetic materials as substitutes for biological antibodied and receptors[J].Chemistry of Materials,2008,20:859-868. |
| [14] | 李辉,李玉琢,李志平,李亚男,彭夕洋.牺牲硅胶骨架法制备盐酸黄连素印迹聚合物及其性能研究[J].功能材料,2012(06):684-687. |
| [15] | S. R. Carter;S. Rimmer .Surface Molecularly Imprinted Polymer Core-Shell Particles[J].Advanced functional materials,2004(6):553-561. |
| [16] | Ma XL;Velu S;Kim JH;Song CS .Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):137-147. |
| [17] | Kodakari N;Katada N;Niwa M .Molecular sieving property of silica overlayer on tin oxide generated by organic template[J].Applied Surface Science,1997,121-122:292-295. |
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