二苯并噻吩分子印迹复合膜的制备及脱硫性能的研究  

Preparation and desulfurization performance of molecularly imprinted composite with dibenzothiophene as template

作　　者：黄振云 陆向红 计建炳 HUANG Zhen-yun;LU Xiang-hong;JI Jian-bing(College of Chemical Engineering,Zhejiang University of Technology,Zhejiang Province Key Laboratory of Biofuel,Biodiesel Laboratory of China Petroleum and Chemical Industry Federation,Hangzhou 310014,China)

机构地区：[1]浙江工业大学化学工程学院浙江省生物燃料利用技术研究重点实验室石油和化工行业生物柴油技术工程实验室

出　　处：《燃料化学学报》2020年第1期36-43,I0003,共9页Journal of Fuel Chemistry and Technology

基　　金：国家高技术研究发展计划(2014AA022103)资助~~

摘　　要：聚丙烯中空纤维膜经多巴胺氧化、硅烷化两步表面改性处理后,以甲基丙烯酸为功能单体进行表面分子印迹聚合,制备了中空纤维膜支撑-二苯并噻吩分子印迹复合膜(MIP-PP膜)。利用红外光谱、扫描电镜对印迹复合膜形态结构进行表征,测定了MIP-PP膜的脱硫性能。结果表明,在298 K时,MIP-PP膜对DBT的吸附在180 min达到平衡,最大吸附容量为133.32 mg/g;MIP-PP膜对DBT的吸附符合Lagergren准一级动力学模型及Langmuir吸附等温线,是可自发进行的放热过程。The polypropylene hollow fiber membrane was subjected to dopamine oxidation and silanization two-step surface modification treatment,and then the surface molecular molecularly imprinted polymerization was carried out using methacrylic acid as a functional monomer to prepare a hollow fiber membrane supported-dibenzothiophene molecularly imprinted composite membrane(MIP-PP membrane).The morphology of the imprinted composite membrane was characterized by infrared spectroscopy and scanning electron microscopy,and the desulfurization performance of MIP-PP membrane was measured.The results show that at 298 K,the adsorption of DBT by MIP-PP membrane reaches equilibrium at 180 min,and the maximum adsorption capacity is 133.32 mg/g.The adsorption of DBT by MIP-PP membrane conforms to the Lagergren quasi-first-order kinetic model and the Langmuir adsorption isotherm,which is a spontaneous exothermic process.

关 键 词：表面分子印迹技术 印迹复合膜 脱硫 二苯并噻吩 

分 类 号：TQ316.37[化学工程—高聚物工业]