Pickering乳液模板法制备复合荧光微球  

Preparation of composite fluorescent microspheres by Pickering emulsion template

作　　者：罗东琴 李秋红[1] 张兆宇 葛淑锦 孙宁 谭光磊 LUO Dongqin;LI Qiuhong;ZHANG Zhaoyu;GE Shujin;SUN Ning;TAN Guanglei(School of Materials Science and Engineering,Shandong University of Technology,Zibo 255049,China;Technology Department,Dezhou Linglong Tire Company Limited,Dezhou 253300,China)

机构地区：[1]山东理工大学材料科学与工程学院,山东淄博255049 [2]德州玲珑轮胎有限公司技术部,山东德州253300

出　　处：《山东理工大学学报（自然科学版）》2022年第3期13-18,共6页Journal of Shandong University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(21706148);山东省重点扶持区域引进急需紧缺人才项目(2211701)。

摘　　要：以正硅酸乙酯为原料,采用改进Stober法合成了粒径均匀的SiO_(2)纳米颗粒,利用罗丹明B对SiO_(2)纳米颗粒疏水改性制得Pickering乳液,并以此为模板制备聚苯乙烯复合微球。通过接触角测量仪、扫描电子显微镜(SEM)、傅立叶变换红外光谱(FTIR)及荧光显微镜对纳米颗粒和复合微球的形貌和性能进行了表征。结果表明,罗丹明B的浓度为15 mmol/L时制备的复合微球形貌较好,显示出强烈的荧光,且所获得复合微球可实现对I_(3)^(-)的检测。Ethyl orthosilicate was used to prepare SiO_(2) nanoparticles with uniform particle size by modified Stober method.Pickering emulsion stabilized by SiO_(2) nanoparticles modified with rhodamine B was used as template to prepare polystyrene composite microspheres.The morphology and property of nanoparticles and composite microspheres were characterized using contact angle measuring instrument,the scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR)and fluorescence microscopy.The results show that the composite microspheres prepared with rhodamine B at 15 mmol/L have good morphology and strong fluorescence,which could be used to detect I_(3)^(-).

关 键 词：Pickering乳液 乳液模板 荧光微球 I_(3)^(-)检测 

分 类 号：O647[理学—物理化学]