江苏大学学报（医学版）2012，Vol.22Issue(2)：151-154,4.
SBA-15表面咖啡因分子印迹聚合物的制备及性能研究
Preparation and characterization of mesoporous silica SBA-15-supported molecularly caffeine-imprinted polymers by surface molecularly imprinting technique
摘要
Abstract
Objective; The adsorption behavior of the caffeine molecularly imprinted polymer for caffeine was investigated. Moreover, the imprinted polymer was applied for selective extraction of caffeine from tea . Methods; A novel molecularly imprinted polymer was prepared with caffeine as template and modified or -dered mesoporous silica SBA 45 as carrier based on surface molecularly imprinting technique . The prepared polymer was characterized by the scanning electron microscopy . The adsorption behavior of the adsorbent for caffeine was investigated using batch experiments. In addition, these imprinted polymers were applied for selective extraction of caffeine from tea. Results; The optimum acidity was around pH 7.0 and the imprinted polymer exhibited fast kinetics and high adsorption capacity for caffeine . Caffeine adsorption process onto MIPs followed the Freundlich adsorption isotherm and the Pseudo -second-order kinetic model. Furthermore , these imprinted polymers could extract caffeine from tea effectively . Conclusion; MIT looks forward to be used as the materials for extraction of caffeine from tea.关键词
表面分子印迹聚合物/SBA-15/咖啡因/吸附/提取Key words
surface molecularly imprinted polymers/SBA-15/caffeine/adsorption/extraction分类
医药卫生引用本文复制引用
吴云,戈延茹,潘如,付文艳,闫永胜,戚雪勇..SBA-15表面咖啡因分子印迹聚合物的制备及性能研究[J].江苏大学学报（医学版）,2012,22(2):151-154,4.基金项目
江苏大学高级人才基金资助项目(10JDG095) （10JDG095）
江苏大学百项本科生创新计划资助项目(1201290014) （1201290014）
