基于水包油微乳液法的方形苝纳米颗粒的合成与荧光性能

doi:10.13229/j.cnki.jdxbgxb201605029

摘要/Abstract

摘要： 利用水包油(O/W)微乳液法,在水/DTAB/氯仿体系中合成制备了苝的方形纳米颗粒,颗粒尺寸在60~100 nm,可以通过改变表面活性剂的浓度实现颗粒尺寸调控。扫描电镜、透射电镜、荧光显微和动态光散射实验照片证实了苝纳米颗粒的存在。实验结果表明:与溶液中主要来自单体的荧光发射有很大不同,纳米颗粒的荧光发射在460~650 nm处出现了来自聚集体的发射宽峰,并表现出明显的尺寸依赖性,随着纳米粒子尺寸的增加而变强。

关键词: 复合材料, 苝, 纳米颗粒, 水包油微乳液, 荧光

Abstract: Based on oil-in-water (O/W) microemulsion system, consisting of chloroform BTAB and water, square-shaped perylene nanoparticles were prepared. The size of the nanoparticles is in the range of 60 nm to 100 nm, which can be easily controlled by varying the concentration of the surfactant. Scanning electron microscopy, transmission electron microscopy, fluorescence microscopy and dynamic light scattering confirmed the presence of peryline nanoparticles. Different from monomers in the solution, the nanoparticles present a broad fluorescent emission from aggregates ranging from 460 nm to 650 nm with a main peak at 570 nm, which is obviously size-dependent and becomes stronger as the size of the nanoparticles increases.

Key words: composite material, perylene, nanoparticles, oil-in-water microemulsion, fluorescence

中图分类号:

TB383

彭爱东, 刘贺男. 基于水包油微乳液法的方形苝纳米颗粒的合成与荧光性能[J]. 吉林大学学报(工学版), 2016, 46(5): 1583-1586.

PENG Ai-dong, LIU He-nan. Preparation and fluorescent properties of cubic perylene nanoparticles based on oil-in-water microemulsion method[J]. 吉林大学学报(工学版), 2016, 46(5): 1583-1586.

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