高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (5): 850.doi: 10.7503/cjcu20140988

• 研究论文: 无机化学 • 上一篇    下一篇

荧光磁性双功能Fe3O4/Alendronate@CdSe/CdS纳米复合物的制备与表征

刘敏, 王秀玲, 刘勇健(), 陈勇兵, 甫亚锋, 周翔   

  1. 1. 苏州科技学院化学生物与材料工程学院,2. 江苏省环境功能材料重点实验室, 苏州 215009
  • 收稿日期:2014-11-10 出版日期:2015-05-10 发布日期:2015-04-14
  • 作者简介:联系人简介: 刘勇健, 男, 博士, 教授, 主要从事新型功能材料的合成与应用研究. E-mail: yjliu1215@aliyun.com
  • 基金资助:
    国家自然科学基金(批准号: 51103120)资助

Synthesis and Characterization of Bifunctional Fluorescent Magnetic Fe3O4/Alendronate@CdSe/CdS Nanocomposites

LIU Min, WANG Xiuling, LIU Yongjian*(), CHEN Yongbing, FU Yafeng, ZHOU Xiang   

  1. 1. School of Chemical and Biological Engineering,2. Key Laboratory of Environmental Functional Materials of Jiangsu Province,Suzhou University of Science and Technology, Suzhou 215009, China
  • Received:2014-11-10 Online:2015-05-10 Published:2015-04-14
  • Contact: LIU Yongjian E-mail:yjliu1215@aliyun.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.51103120)

摘要:

采用化学共沉淀法制备了磁性Fe3O4纳米颗粒, 并用四甲基氢氧化铵(TMAOH)、 阿伦磷酸钠、 丙烯酸丁酯和无水乙二胺对Fe3O4纳米颗粒表面进行修饰, 制备出3代表面胺基化的Fe3O4树状分子. 采用油相合成的方法制备CdSe/CdS 量子点, 再用巯基乙酸进行修饰, 使其具有良好的水溶性和较好的稳定性. 将制备的Fe3O4树状分子与修饰后的量子点进行连接, 制备出双功能树状Fe3O4/Alendronate@CdSe/CdS微球. 通过这种方法得到的材料的荧光性能明显增强, 但材料的荧光性能并不随代数成线性变化的.

关键词: 量子点, 磁性纳米微粒, 双功能纳米复合物

Abstract:

Magnetic Fe3O4 nanoparticles were synthesized via chemical co-precipitation method and then modified by tetramethylammonium hydroxide(TMAOH), alendronate, butyl acrylate and anhydrous ethylenediamine to prepare dendrimer-like grafted Fe3O4 nanoparticles. CdSe/CdS quantum dots(QDs) were synthesized via oil phase method, and then transferred into aqueous phase by thioglycolic acid modification to improve their water-solubility and stability. With connecting the modified Fe3O4 nanoparticles and quantum dots, we synthesized the bifunctional fluorescent magnetic Fe3O4/Alendronate@CdSe/CdS nanocomposites. The results show that the fluorescence performance of the material can be significantly enhanced via this method. However, it doesn’t change lineary with the algebra.

Key words: Quantum dot, Magnetic nanoparticle, Bifunctional nanocomposite

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