天津农学院学报 ›› 2023, Vol. 30 ›› Issue (1): 59-63.doi: 10.19640/j.cnki.jtau.2023.01.013

• 研究与简报 • 上一篇    下一篇

UiO66的氨基化修饰及表征

李艳丽, 秦铭杉, 韦冬微, 郭津玮, 杨琳燕通信作者   

  1. 天津农学院 动物科学与动物医学学院,天津市农业动物繁育与健康养殖重点实验室,天津 300392
  • 收稿日期:2021-07-12 出版日期:2023-03-31 发布日期:2023-04-21
  • 通讯作者: 杨琳燕(1982—),女,讲师,博士,主要从事纳米药物载体方面研究。E-mail:y_linyan@163.com。
  • 作者简介:李艳丽(1998—),女,本科在读,主要从事纳米药物载体方面研究。E-mail:1587200196@qq.com。
  • 基金资助:
    国家自然科学基金(31572492,31372482); 天津市自然科学基金一般项目(18JCYBJC30100); 天津市教委科研计划项目(2017KJ190); 天津市“兽医生物技术创新团队”资助项目(TD12-5019); 省部共建药用资源化学与药物分子工程国家重点实验室资助课题(CMEMR2016-B12); 天津市大学生创新创业训练计划项目(202010061066)

Amination modification and characterization of UiO66

Li Yanli, Qin Mingshan, Wei Dongwei, Guo Jinwei, YANG LinyanCorresponding Author   

  1. Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2021-07-12 Online:2023-03-31 Published:2023-04-21

摘要: 和普通的金属有机框架材料相比,UiO-66的水热稳定性和化学稳定性更加出众。通过一锅法分别制备出UiO-66、UiO-66-NH2、UiO-66-(COOH)2样品,之后对羧基化的产物进行PEI修饰制出UiO-66-(COOH)2-PEI样品。然后将UiO-66-NH2和UiO-66-(COOH)2-PEI材料进行荧光检测,探究氯化铝、氯化锌、氯化钴、氯化铅四种金属盐溶液在相同浓度不同体积下对两种材料荧光强度的不同影响。将制得的样品及其中间产物通过红外光谱法(IR)检测,结果表明氨基化和羧基化修饰的UiO-66系列产物是成功的。根据荧光分光光度计测定结果显示,上述四种金属盐溶液对UiO-66-NH2荧光强度都具有淬灭效应,且金属盐溶液的体积和淬灭效应呈正相关。对UiO-66-(COOH)2-PEI材料荧光强度都具有增强效应,金属盐溶液的体积和增强效应呈正相关。

关键词: UiO-66, 金属有机框架, 氨基化修饰, 金属离子传感

Abstract: Compared with common Metal-Organic Framework materials(MOFs), UiO-66 has higher hydrothermal stability and chemical stability. UiO-66, UiO-66-NH2 and UiO-66-(COOH)2 samples were prepared by one-pot method, and then the carboxylated products were modified by PEI to prepare UiO-66-(COOH)2-PEI samples. The UiO-66-NH2 and UiO-66-(COOH)2- PEI samples were subjected to fluorescence detection to determine the fluorescence intensity of the four metal salt solutions, such as aluminum chloride, zinc chloride, cobalt chloride, and lead chloride under the same concentration and different volumes of two samples. The samples and intermediate products were detected by infrared spectroscopy(IR). The results showed that the prepared UiO-66, UiO-66 intermediate and carboxylated UiO-66 product were successful. According to the results of fluorescence spectrophotometer, the above four metal salt solutions could enhance the fluorescence intensity of aminated UiO-66-(COOH)2-PEI, and the volumes of metal salt solution were positively correlated with the enhancement effects. The above four metal salt solutions could quench the fluorescence intensity of UiO-66, and the volumes of metal salt solution were positively correlated with the quenching effects.

Key words: UiO-66, MOFs, Amination Modification, Metal Ion Sensing

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