Study on the adsorption of Andrographolide by metal organic framework MIL-101
徐伟 1姜宁 1陈波 1程建 1唐毅 1祝玉林 1毛敏 1程纯儒1
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作者信息
1. 四川轻化工大学化学工程学院,四川自贡 643000
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摘要
用水热法合成MIL-101(Cr),通过PXRD、SEM表征其物相结构及微观形貌,制备出BET达2 800 m2/g的MIL-101吸附剂.静态吸附实验表明,MIL-101在60％甲醇水溶液中,对穿心莲内酯和脱水穿心莲内酯的饱和质量吸附率分别达到8.36％,7.05％;将MIL-101负载于层析硅胶,制成制备色谱柱(4.6 mm × 250 mm),分别测定其对两种内酯的穿透曲线及对内酯混合物的在线分离性能,结果表明,实验制备色谱柱对穿心莲内酯和脱水穿心莲内酯分离度达1.9,分离效率＞99％,可实现在线高效分离.
Abstract
MIL-101(Cr)Was synthesized by hydrothermal method,and its phase structure and micro-structure were characterized by PXRD and SEM,resulting in a BET of 2 800 m2/g of MIL-101 adsorbent.The static adsorption experiment showed that MIL-101 had saturated mass adsorption rate of 8.36％and 7.05％for Andrographolide and dehydrated Andrographolide in a 60％methanol aqueous solution,respectively;MIL-101 was loaded onto chromatographic silica gel to prepare a chromatographic column(4.6 mm x250 mm),and its penetration curves for two types of lactones and online separation perform-ance for lactone mixtures were measured.The results showed that the experimental prepared chromato-graphic column had a separation degree of 1.9 for Andrographolide and dehydrated Andrographolide,with a separation efficiency of＞99％,achieving online efficient separation.
关键词
金属有机框架/MIL-101/穿心莲内酯/脱水穿心莲内酯/吸附分离
Key words
metal organic framework/MIL-101/Andrographolide/dehydrated Andrographolide/adsorp-tive and separation
维普
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