Sol-gel synthesis and characterization of hybrid inorganic-organic Tb(III)-terephthalate containing layered double hydroxides

abstract

Mg-3/Al-1 and Mg3Al1-xTbx layered double hydroxides (LDHs) intercalated with terephthalate anion were synthesized using sol-gel method. The obtained materials were characterized by X-ray diffraction (XRD) analysis, infrared (FTIR) spectroscopy, fluorescence spectroscopy (FLS) and scanning electron microscopy (SEM). The Tb3+ substitution effects in the Mg3Al1-xTbx LDHs were investigated by changing the Tb3+ concentration in the cation layers. The study indicates that the organic guest-terephthalate in the interlayer spacing of the LDH host influences the luminescence of the hybrid inorganic-organic materials.

keywords

ENHANCED LUMINESCENCE; AL; MG; INTERCALATION; FILMS; LDH; FABRICATION; PROPERTY; BENZOATE; ANIONS

subject category

Materials Science; Optics

authors

Smalenskaite, A; Salak, AN; Ferreira, MGS; Skaudzius, R; Kareiva, A

our authors

acknowledgements

This work was supported by a grant SEMAT (No. SEN-02/2016) of National Research Programme "Healthy ageing" from the Research Council of Lithuania. This work has been also partially done in frame of the project TUMOCS. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 645660.

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