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Dual-Mode Luminescent Nanopaper Based on Ultrathin g-C3N4 Nanosheets Grafted with Rare-Earth Upconversion Nanoparticles.
Zhao, Yafei; Wei, Ruoyan; Feng, Xin; Sun, Lining; Liu, Panpan; Su, Yongxiang; Shi, Liyi.
Afiliación
  • Zhao Y; Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P.R. China.
  • Wei R; Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P.R. China.
  • Feng X; Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P.R. China.
  • Sun L; Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P.R. China.
  • Liu P; Department of Chemistry, College of Science, Shanghai University , Shanghai 200444, P.R. China.
  • Su Y; Department of Chemistry, College of Science, Shanghai University , Shanghai 200444, P.R. China.
  • Shi L; Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P.R. China.
ACS Appl Mater Interfaces ; 8(33): 21555-62, 2016 Aug 24.
Article en En | MEDLINE | ID: mdl-27494116
Ultrathin graphite-like carbon nitride (g-C3N4) nanosheets have attracted considerable attention due to the enhanced intrinsic photoabsorption and photoresponse with respect to bulk g-C3N4. For the first time, a dual-mode of down- and upconversion luminescent g-C3N4 nanopaper with high optical transparency and mechanical robustness was successfully fabricated through a simple thermal evaporation process using chitosan as a green cross-linking agent. The dual-mode of down- and upconversion fluorescence emission originated from the amino terminated ultrathin g-C3N4 nanosheets functionalized with carboxylic acid modified multicolored rare-earth upconversion nanoparticles (cit-UCNPs) via EDC/NHS coupling chemistry. The homogeneously distributed cit-UCNPs@g-C3N4 nanoconjugates with excellent hydrophilicity displayed good film-forming ability and structural integrity; thus, the photoluminescence of each ingredient was substantially maintained. Results indicated that the freestanding chitosan cross-linked cit-UCNPs@g-C3N4 luminescent nanopaper possessed high transmittance, excellent mechanical properties, and remarkable dual-mode emission. The smart design of high performance luminescent nanopaper based on ultrathin g-C3N4 nanosheets grafted with multicolored UCNPs offers a potential strategy to immobilize other multifunctional luminescent materials for easily recognizable and hardly replicable anticounterfeiting fields.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2016 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2016 Tipo del documento: Article Pais de publicación: Estados Unidos