Tailoring bifunctional hybrid organic-inorganic nanoadsorbents by the choice of functional layer composition probed by adsorption of Cu²⁺ ions.

ABSTRACT: Spherical silica particles with bifunctional (≡Si(CH₂)₃NH₂/≡SiCH₃, ≡Si(CH₂)₃NH₂/≡Si(CH₂)₂(CF₂)₅CF₃) surface layers were produced by a one-step approach using a modified Stöber method in three-component alkoxysilane systems, resulting in greatly increased contents of functional components. The content of functional groups and thermal stability of the surface layers were analyzed by diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy, and ¹³C and ²⁹Si solid-state NMR spectroscopy revealing their composition and organization. The fine chemical structure of the surface in the produced hybrid adsorbent particles and the ligand

SUBMITTER: Tomina VV 

PROVIDER: S-EPMC5301806 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature