Synthesis and characterization of spherical silica nanoparticles by modified Stober process assisted by organic ligand

被引：137
|
作者：
Gholami, Tahereh [1 ]
Salavati-Niasari, Masoud [1 ,2 ]
Bazarganipour, Mehdi [3 ]
Noori, Elham [1 ]
机构：
[1] Univ Kashan, Inst Nano Sci & Nano Technol, Kashan, Iran
[2] Univ Kashan, Fac Chem, Dept Inorgan Chem, Kashan, Iran
[3] Isfahan Univ Technol, Nanotechnol & Adv Mat Inst, Esfahan 8415683111, Iran
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2013年 / 61卷
基金：
美国国家科学基金会;
关键词：
Nanoparticle; Silica; Ultrasonic; Spherical; Stober process; SPHERES;
D O I：
10.1016/j.spmi.2013.06.004
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Spherical silica nanoparticles were synthesized via a sonochemical method based on modified Stober process the reaction between TEOS (tetraethyl orthosilicate), methanol and ethylenediamine (en) in water, in the presence of organic Schiff base ligand (Salpn-NO2). The effects of preparation parameters such as: ultrasonic power, ultrasonic irradiation time and molar ratio of organic Schiff base ligand to TEOS were investigated to reach the optimum conditions. It was found that morphology, particle size and phase of the products could be affected by these parameters. The results exhibited that optimum conditions were 15 min, 60 W power and 1/10 M ratio. The as synthesized spherical silica nanoparticles were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible (UV-Vis) spectroscopy, and X-ray energy dispersive spectroscopy (EDS). (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：33 / 41
页数：9
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