Novel Luminescent Inorganic–Organic Hybrid Material Synthesized by Grafting 8-Hydroxyquinoline-Samarium Complex on Zeolite Y

A novel inorganic–organic hybrid material (HQ-Sm-Z) was synthesized by grafting 8-hydroxy quinolinesamarium complex (HQ-Sm) on zeolite Y through hydrothermal or solvothermal route. FTIR analysis reveals that the organic and inorganic components were covalently linked through the Si O bond of zeolite Y in the hybrid material. Optical properties of 8-hydroxy quinoline-samarium complex and the hybrid material were studied by using UV-visible spectroscopy and photoluminescence spectroscopy. We found that the 8-hydroxy quinoline-samarium complex grafted on zeolite through solvothermal route has better optical properties than the complex grafted on zeolite through hydrothermal route. The solid samarium complex and the hybrid material give both ligand based emission and the characteristic fluorescence of Sm³⁺ ion emission at room temperature. The SEM analysis shows that the hybrid material is homogenous. The mechanism of direct excitation and energy transfer scheme is also discussed.