1403/01/10
رحمان حسین زاده

رحمان حسین زاده

مرتبه علمی: استاد
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده شیمی
نشانی: بابلسر- دانشگاه مازندران-دانشکده شیمی-گروه شیمی آلی
تلفن: 01135302356

مشخصات پژوهش

عنوان
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
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Modified graphene oxide; 5-Amino-1,10-phenanthroline; Heterogeneous catalyst; C–N Coupling reaction; Heavy metals adsorption
سال
2022
مجله Journal of molecular structure
شناسه DOI
پژوهشگران Maryam Abaszadeh ، Rahman Hosseinzadeh ، mahmood tajbakhsh ، Shahram Ghasemi

چکیده

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.