Incorporation of Znq{sub 2} complexes into mesoporous silica and their transparent polymer luminescent nanocomposites

Journal Article · Mon Jun 15 04:00:00 EDT 2009 · Journal of Solid State Chemistry

OSTI ID:21370431

Yaying, Du ^[1]; Yongli, Shi; Xiaodan, Lue ^[1]; Zhongmin, Su ^[1]

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1. College of Chemistry, Northeast Normal University, Changchun 130024 (China)

Znq{sub 2}-functionalized colloidal mesoporous silicas (Znq{sub 2}-CMS)/polymer transparent nanocomposites were prepared by in situ bulk polymerization. CMS nanoparticles or nanorods with hydroxyl-, mercapto- and sulfonic-functionalized interiors were obtained by different synthetic routes in the nanosize dimensions between 50 and 500 nm. The luminescent Znq{sub 2} complex was successfully introduced in the pores of different mesoporous silicas by chemical adsorption as the driving force. The different internal circumstances of mesoporous silicas had an obvious effect on the luminescence and lifetime of Znq{sub 2} complex. The transparent fluorescent nanocomposites were fabricated from different Znq{sub 2}-CMS and suitable monomers. The Znq{sub 2}-CMS were uniformly dispersed in the polymer matrix without evident aggregation. The photoluminescence properties of Znq{sub 2}-CMS in the transparent matrix exhibited a dependence on the inner surrounding of CMS due to the interaction between Znq{sub 2}-CMS and polymers. The maximum emission peak of the nanocomposites had a red-shift of 28 nm as compared to pure Znq{sub 2}-CMS. - Graphical abstract: Znq{sub 2}-functionalized colloidal mesoporous silicas (Znq{sub 2}-CMS)/polymer transparent fluorescent nanocomposites were prepared by in situ bulk polymerization. The figure shows the synthetic scheme for the Znq{sub 2}-CMS and their transparent bulk nanocomposites.

• OSTI ID: 21370431
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 6 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AGGLOMERATION
CHEMICAL REACTIONS
COMPLEXES
COMPOSITE MATERIALS
EMISSION
FLUORESCENCE
LUMINESCENCE
MATERIALS
MINERALS
NANOSTRUCTURES
OXIDE MINERALS
PHOTOLUMINESCENCE
PHOTON EMISSION
POLYMERIZATION
POLYMERS
RED SHIFT
SILICA
ZINC COMPLEXES