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العنوان
Paration, characterization and applications of some inorganic nanomaterials /
الناشر
Omar Ahmed Fouad ,
المؤلف
Omar Ahmed Fouad
هيئة الاعداد
باحث / Omar Ahmed Fouad
مشرف / Gehad Genidy Mohamed
مشرف / Nessma Fathy Erian Mahmoud
مشرف / Khaled M.Ismail
تاريخ النشر
2020
عدد الصفحات
153 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
كيمياء المواد
تاريخ الإجازة
1/3/2020
مكان الإجازة
جامعة القاهرة - كلية العلوم - Chemistry
الفهرس
Only 14 pages are availabe for public view

from 186

from 186

Abstract

Metal organic framework (MOF) represents an attractive material to be functional as an ionophore because of array of nurturing features such as large surface area, porous structure and electrocatalytic activity. Herein, a newly synthesized MOFs (Cu-MOF and Co-MOF) based on a novel nano-Schiff base ligand (H₂L), as a linker, were developed under ultrasonic condition and characterized via various characterization tools including, powder X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Ultraviolet-Visible (UV-Vis) spectroscopy, morphological scanning electron microscope (SEM) combined with Energy Dispersive X-Ray analysis (EDX), Brunauer{u2013}Emmett{u2013}Teller (BET) surface area measurement technique, thermogravimetric analysis (TGA) and contact angle measurement technique. The FT-IR and UV-Vis spectra confirmed the binding of the carboxylate groups of the ligand (H₂L) to Cu(II) and Co(II) ions in the MOFs structure. The SEM images naked the presence of Schiff base ligand and MOFs in nanoscale. The XRD data suggested that MOFs have mesoporous structure. The synthesized MOFs were successfully applied as an ionophores in carbon paste electrodes for determination of Al(III) (Cu-MOF) and Cr(III) ion (Co-MOF) in different real samples, respectively. The newly synthesized MOFs modified CPEs showed an enhancement in selectivity and sensitivity towards determination of Al(III) and Cr(III) ions