화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.21, 1089-1097, January, 2015
DOI10.1016/j.jiec.2014.05.019  Export Citation
Calcium molybdate octahedral nanostructures, hierarchical self-assemblies controllable synthesis by coprecipitation method: Characterization and optical properties
Marziyeh Ghaed-Amini, Mehdi Bazarganipour1, and Masoud Salavati-Niasari†
  • Institute of Nano Science and Nano Technology, University of Kashan, PO Box, 87317-51167 Kashan, Islamic Republic of Iran
  • 1Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, PO Box, 84156-83111 Isfahan, Islamic Republic of Iran
E-mail:
Calcium molybdate nanostructures have been successfully prepared via coprecipitation approach by utilizing Ca(Sal)2 (Sal = salicylidene) and ammonium heptamolybdate ((NH4)6Mo7O24·4H2O) as starting materials in water as solvent. The products were characterized by Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD), energy dispersive X-ray microanalysis (EDX), photoluminescence (PL) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effects of temperature, reaction time, solvent, surfactant, calcium source and pH were considered to obtain optimum condition. It was established that morphology, particle size and phase of the final products could be extremely affected via these parameters. It revealed that utilizing of water as solvent and NH3 as the base, provided octahedral and hierarchical self-assemblies nanostructures, respectively.
Keywords:Nanostructured materials;Co-precipitation;Luminescence;Optical spectroscopy
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