Photoluminescent bimetallic-3-hydroxypicolinate/graphene oxide nanocomposite

resumo

A new photoluminescent bimetallic-3-hydroxypicolinate/graphene oxide composite was prepared by incorporation of the complex Na-5[EuW2O6(picOH)(8)] (1; HpicOH being 3-hydroxypicolinic acid) on graphene oxide (GO). Photoluminescence studies (emission and excitation spectra and D-5(0) emission decay curves) were performed on 1 and the composite 1/GO suggesting an effective interaction between the picOH(-) ligands and the graphene oxide.

palavras-chave

GRAPHENE OXIDE; METAL NANOPARTICLES; POLYOXOMETALATE; PHOTOREDUCTION; NANOSHEETS; COMPLEXES; CHEMISTRY; LAYER; ACID

categoria

Chemistry

autores

Granadeiro, CM; Cruz, SMA; Goncalves, G; Marques, PAAP; Costa, PMFJ; Ferreira, RAS; Carlos, LD; Nogueira, HIS

nossos autores

agradecimentos

We thank CICECO and Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) for funding. CMG and SMAC thank FCT for the Post-Doc grant (SFRH/BPD/73191/2010) and PhD grant (SFRH/BD/68598/2010), respectively. GG thanks INL for a PhD grant. PMFJC thanks the Fundacao para a Ciencia e a Tecnologia and Alexander von Humboldt Foundation for Research Fellowships. We thank Dr Ute Schmidt (WITec) for the confocal Raman microscopy.

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