Synthesis and photoluminescence properties of silica-modified SiO₂@ANA-Si-Tb@SiO₂, SiO₂@ANA-Si-Tb-L@SiO₂ core-shell-shell nanostructured composites.

ABSTRACT: Three novel core-shell nanostructured composites SiO₂@ANA-Si-Tb, SiO₂@ANA-Si-Tb-L (L = second ligand) with SiO₂ as the core and terbium organic complex as the shell were successfully synthesized. The core and shell were connected together by covalent bonds. The terbium ion was coordinated with organic ligand-forming terbium organic complex in the shell layer. The organosilane (HOOCC₅H₄NN(CONH(CH₂)₃Si(OCH₂CH₃)₃)₂ (abbreviated as ANA-Si) was used as the first ligand and 1,10-phenanthroline (phen) or 2-thenoyltrifluoroacetone (TTA) was used as the second ligand. Furthermore, silica-modified SiO₂@ANA-Si-Tb@SiO₂, SiO₂@ANA-Si-Tb-L@SiO₂

SUBMITTER: Feng L 

PROVIDER: S-EPMC6731695 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature