Fabrication Flexible and Luminescent Nanofibrillated Cellulose Films with Modified SrAl₂O₄: Eu, Dy Phosphors via Nanoscale Silica and Aminosilane.

ABSTRACT: Flexible 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized nanofibrillated cellulose (ONFC) films with long afterglow luminescence containing modified SrAl₂O₄: Eu2+, Dy3+ (SAOED) phosphors were fabricated by a template method. Tetraethyl orthosilicate (TEOS) and (3-aminopropyl) trimethoxy-silane (APTMS) were employed cooperatively to improve the water resistance and compatibility of the SAOED particles in the ONFC suspension. The structure and morphology after modification evidenced the formation of a superior SiO₂ layer and coarse amino-compounds on the surface of the phosphors. Homogeneous dispersions containing ONFC and the modified phosphors were prepared and the interface of composite films containing the amino-modified particles showed a more closely packed structure and

SUBMITTER: Zhang L 

PROVIDER: S-EPMC5977366 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature