Hydrothermal synthesis and photoluminescence property of a new inorganic-organic nanohybrid compound based on Cu, Mo, and 4-CN-py
Subject Areas : The Application of Chemistry in Environment
Keywords: Nanoparticle, Hydrothermal, Photoluminescence, inorganic-organic nanohybrid,
Abstract :
A new nanocrystalline compound based on Cu(II), MoO3 and 4-CN-py has been synthesized under hydrothermal method. Nanocrystals structure, morphology and Photoluminescence property was studied by X-ray Diffraction (XRD), Fourier Transform Infra Red (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM), Photoluminescence (PL) spectra, Thermogravimetric Analysis (TGA-DTA) and Energy Dispersive X-ray spectroscopy (EDX). In preparation compound, the influence of the initial reactants type and concentration, pH value, reaction temperature and time on the nanocrystals structure and morphology were investigated. The results show, pH value of starting solution has influence on the size synthetic nanopowders and with increasing pH; the crystals size increases and nanostructures morphology changes. The resulting compound is crystallized in monoclinic phase and its structure includes 4-CN-py spacer groups that bridging between CuMoO4 units in which can make three dimensional networks with 30 nm sizes in neutral pH. The prepared nanocrystals showed intense PL in room temperature with an emission maximum at 448 nm upon excitation at 270 nm.
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