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Mohammad Yaser Masoomi

Mohammad Yaser Masoomi

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0003-1329-5947
Education: PhD.
ScopusId: 36927960900
Faculty: Science
Address: Arak University
Phone:

Research

Title
Ultrasound-assisted synthesis and characterization of new metal-organic framework based on azobenzene-4,4-dicarboxylic acid: Precursor for the fabrication of Co3O4 nano-particles
Type
JournalPaper
Keywords
Metal-organic framework, Sonochemical, Ultrasound, Nano-structure, Single crystal X-ray diffraction
Year
2018
Journal ULTRASON SONOCHEM
DOI
Researchers fatemeh parsa ، Masoumeh ghorbanlo ، Mohammad Yaser Masoomi ، Ali morsali ، peter junk ، jun wang

Abstract

Azobenzene groups are widely known as photochromic ligands thus particularly interesting building block for designing receptors for neutral or charged guests. A new metal-organic framework, [Co3(adc)3(DMF)4].2DMF (compound 1) (adc = azobenzene-4,4-dicarboxylic acid, DMF = N,N-dimethylformamide), was synthesized by solvothermal methods and structurally characterized using X-ray crystallography and a range of spectroscopic techniques. Also, nanorods of compound 1 have been synthesized by a sonochemical process and characterized by field emission scanning electron microscopy (FE-SEM) and powder X-ray diffraction (PXRD). The effect of sonication time and concentration of the initial reagents on the size and morphology of the MOF have been optimized. Results indicate that decreasing of initial concentration and increasing ultrasound radiation time lead to small size nanorods of compound 1. Thus, ultrasound radiation affects the size of nanorods. After heat treatment, the cobalt ion-based metal organic framework nanorods can be converted into porous Co3O4 nanoparticle.