Preparation and Characterization of Fluorescent SiO2 Microspheres

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Xu, Cui^1 ; Zhang, Hao^1 ; Guan, Ruifang^1,2

School of Materials Science and Engineering, University of Jinan, Jinan, Shandong

250022, China^1

Shandong Engineering Centre for Fluorinated Materials, University of Jinan, Jinan, Shandong

250022, China^2

关键词: Aminopropyltriethoxysilane;    Fluorescent compounds;    Fluorescent labeling;    Fluorescent property;    Monodispersity;    Morphology and structures;    Reaction conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012008/pdf
DOI  :  10.1088/1757-899X/301/1/012008

来源: IOP

【 摘 要 】

Fluorescent compound without typical fluorophores was synthesized with citric acid (CA) and aminopropyltriethoxysilane (APTS) firstly, and then it was grafted to the surface of the prepared SiO2microspheres by chemical reaction. The fluorescent SiO2microspheres with good fluorescent properties were obtained by optimizing the reaction conditions. And the morphology and structure of the fluorescent SiO2microspheres have been characterized by scanning electron microscopy (SEM) and fourier transform infrared (FTIR) spectroscopy. The results showed that the preparation of fluorescent SiO2microspheres have good monodispersity and narrow particle size distribution. Moreover, the fluorescent SiO2microspheres can be applied to detect Fe3+in aqueous solution, prepare fluorescent SiO2rubber, and have potential to be applied in the fluorescent labeling and fingerprint appearing technique fields.