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A new photoluminescent bimetallic-3-hydroxypicolinate/graphene oxide composite was prepared by incorporation of the complex Na5[EuW2O6(picOH)8] (1; HpicOH being 3-hydroxypicolinic acid) on graphene oxide (GO). Photoluminescence studies (emission and excitation spectra and 5D0 emission decay curves) were performed on 1 and the composite 1/GO suggesting an effective interaction between the picOH− ligands and the graphene oxide.
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Granadeiro et al. (2012) studied this question.
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