| 田海希,毛琳,许国强,罗晓玥,李辉.化学通报,2021,84(6):571-577. |
| 松脂素二糖苷印迹修饰金属有机骨架复合材料的合成及其吸附性能 |
| Synthesis and Adsorption Performance of Pinoresinol Diglucoside Imprint-Modified Metal Organic Frame Composites |
| 投稿时间：2020-11-16 修订日期：2020-12-26 |
| DOI： |
| 中文关键词: 金属有机骨架MIL-101 后合成修饰 印迹修饰 松脂素二糖苷 吸附 |
| 英文关键词:Metal organic frameworks MIL-101 Post-synthetic modification Imprint modification Pinoresinol diglucoside Adsorption |
| 基金项目:国家自然科学基金项目（21865011）、湖南省湘西自治州科技创新重点研发计划项目（2019SF2003）、湖南省创新平台开放基金项目（16K071）和吉首大学研究生创新基金项目（Jdy22）资助 |
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| 中文摘要: |
| 构建了金属有机骨架MIL-101的后合成印迹修饰法以改善其对松脂素二糖苷（PDG）的吸附选择性。MIL-101经过氨基化修饰及表面接枝制备了金属有机骨架-分子印迹复合材料MIPs@ED-MIL-101，用X射线衍射法、红外光谱法及扫描电镜分析对MIL-101的晶体结构、表面化学功能基团及结构形貌进行表征。测试了MIPs@ED-MIL-101对模板分子的吸附动力学、选择性及固相萃取性能。结果表明，经印迹修饰后的MIL-101对PDG的吸附性能大幅提高，且对模拟混合物中的PDG也具有较高的竞争吸附选择性。当以MIPs@ED-MIL-101为吸附剂从杜仲提取物中提取和分离PDG时，产品纯度85.3%，且复合材料多次重复使用后对目标化合物的吸附量变化不大。 |
| 英文摘要: |
| A molecular imprinted polymer (MIP)-modified MIL-101 metal-organic frame composites (MIPs@ED-MIL-101) was fabricated for selective analysis of pinoresinol diglucosides (PDG). This PDG-imprinted MIPs@ED-MIL-101 composite was characterized in crystal structure, surface chemical group and particle morphology by XRD, FT-IR and SEM. The adsorption kinetics, selectivity and solid phase extraction performance of MIPs@ED-MIL-101 composite for template molecules were tested. Results showed that the MIPs@ED-MIL-101 composite has greatly improved adsorption performance for PDG, and can be used to selectively adsorb PDG from the simulated mixture. When this MIPs@ED-MIL-101 composite was used as adsorbent for the extraction and separation of PDG from crude extract of Eucommia ulmoides, the purity of obtained product was 85.3%. Also, this novel material can also be reused for many times with a slight loss in adsorption capacity. |
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