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Rahman Hosseinzadeh

Rahman Hosseinzadeh

Academic rank: Professor
Education: PhD.
Faculty: Faculty of Chemistry
Address: Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
Phone: 01135302356


The synthesis of functionalized magnetic graphene oxide with 5-amino-1,10-phenanthroline and investigation of its dual application in C-N coupling reactions and adsorption of heavy metal ions
Modified graphene oxide; 5-Amino-1,10-phenanthroline; Heterogeneous catalyst; C–N Coupling reaction; Heavy metals adsorption
Journal Journal of molecular structure
Researchers Maryam Abaszadeh ، Rahman Hosseinzadeh ، mahmood tajbakhsh ، Shahram Ghasemi


Magnetic graphene oxide (MGO) was functionalized with 5-amino-1,10-phenanthroline (APhen) in the presence of N,N’ -dicyclohexylcarbodiimide (DCC). MGO@APhen was characterized by FT-IR, CHN, FE-SEM, EDS, element mapping images, TEM, XRD, TGA, and VSM. MGO@APhen was used in C–N coupling re- action of amides and N -heterocycles with various aryl halides. The results showed that MGO@APhen in the presence of CuI acts as an efficient heterogeneous catalyst leading to satisfactory yield of N -arylated products. Due to the magnetization properties of MGO@APhen, it was easily separated by a supermagnet and successfully reused in the next cycle of coupling reactions. In addition, MGO@APhen demonstrated excellent performance in adsorption of Pb(II) and Ag(I) ions. Adsorption kinetics fitted well with pseudo - second-order model and the adsorption isotherm follows Langmuir model, and the adsorption process was exothermic and spontaneous. Finally, the magnetically separated adsorbent was desorbed and suc- cessfully used in the adsorption of heavy metal ions in the subsequent cycles.