Functionalized TiO₂ nanoparticles by single-step hydrothermal synthesis: the role of the silane coupling agents.

ABSTRACT: A simple, robust and versatile hydrothermal synthesis route to in situ functionalized TiO₂ nanoparticles was developed using titanium(IV) isopropoxide as Ti-precursor and selected silane coupling agents (3-aminopropyltriethoxysilane (APTES), 3-(2-aminoethylamino)propyldimethoxymethylsilane (AEAPS), and n-decyltriethoxysilane (DTES)). Spherical nanoparticles (ca. 9 nm) with narrow size distribution were obtained by using DTES or by synthesis performed without silane coupling agents. Rod-like nanoparticles along with 9 nm spherical nanoparticles were formed using aminosilane coupling agents because of a combination of oriented attachment of nanoparticles and specific adsorption of the aminosilane on crystallographic faces of anatase nanoparticles. The nanoparticles were fun

SUBMITTER: Dalod AR 

PROVIDER: S-EPMC5301916 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature