Effects of the cool beginnings: modulation of SiO2 nanoparticles
Citation
Boylu, B. , Arslan, O. , Abalı, Y. (2020). Effects of the Cool Beginnings: Modulation of SiO2 Nanoparticles. İstanbul Sabahattin Zaim Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2(3), 26-31Abstract
As one of the most famous anticake agents, SiO2 nanoparticle synthesis was investigated via a
modified method and results were reported. For this reason, tetraethoxysilane presursor was subjected
to varying synthesis procedures such as concentration change and surface modification ligants. pH
value and all the other reactant concentrations were kept the same and by implying sol-gel reaction
mechanism, basic catalysis and temperature allowed us to obtain spherical and monodispersed
nanoparticles. Additionally it was shown that surface composition which provides hydrophobic
character could also be controlled by spontaneous reaction of the long alkyl chain containing
alkyltrialkoxysilanes with tetraalkoxysilane. Statistical analysis of the nanoparticle sizes with atomic
composition unveiled that SiO2 nanoparticle size can be modulated sensitively. Octyl modified SiO2
nanoparticles can be produced. Monodispersed, spherical and surface controlled nanoparticles seem
promising candidatesfor the applications in sensors, controlled surface coatings and chemical delivery
applications.