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Optical Characterization Of Stabilized Atmospheric Pressure Pin To Plate Plasma Source, Ahmed Abdelradi, Ahmed Samir, Farouk Elakshar, Abdou Garamoon, Mansour Elsabagh
Optical Characterization Of Stabilized Atmospheric Pressure Pin To Plate Plasma Source, Ahmed Abdelradi, Ahmed Samir, Farouk Elakshar, Abdou Garamoon, Mansour Elsabagh
Al-Azhar Bulletin of Science
DC Stabilized Discharges (DCSD) was generated in atmospheric pressure argon for a pin to plate. In this paper, discharge with a flowing argon gas into the air (plasma Source) is investigated by optical emission spectroscopy technique. The emission spectra of excited species of atomic-hydrogen, N2 and Ar were observed and measured. The rotational and vibrational temperatures of the discharge were measured by comparing modelled optical emission spectra with masured spectra from the discharge by using several different vibrational bands of the 2nd positive system (SPS) of N2 ( N2[C 3Πu] → N2[B 3Πg]). The optical characteristics of the discharge shown …
Synthesis, Structural Characterization, And Catalytic Reduction Study Of Co(Ii) Complex Towards Toxic Organic Compounds; Nitrophenol, And Nitroaniline, Aml Saleh, Abeer Faheim, Omayma Mostafa, Zeinab Abdelwahab, Aida Salman
Synthesis, Structural Characterization, And Catalytic Reduction Study Of Co(Ii) Complex Towards Toxic Organic Compounds; Nitrophenol, And Nitroaniline, Aml Saleh, Abeer Faheim, Omayma Mostafa, Zeinab Abdelwahab, Aida Salman
Al-Azhar Bulletin of Science
This work demonstrates the synthesis of Co(II) complex of a new imine ligand incorporated sulfonamide, and coumarin moiety. The ligand and its complex were characterized by elemental analysis, IR, 1HNMR, mass, UV-Vis spectroscopy, molar conductance, magnetic susceptibility and thermal gravimetric analysis (TGA-DTG). According to the spectral analysis, the ligand, HL acts as a multidente donor coordinating through NONO donor sites. The Co(II) complex has tetrahedral geometry, and non-electrolytic in nature. The thermodynamic parameters as activation energy, enthalpy of activation, entropy of activation, and free energy of activation were determined via the thermal analysis. Furthermore, the ability of Co(II) complex as …
Modeling Of The Dynamics Adsorption Of Some Hazardous Elements From Aqueous Solution Onto Bentonite-Calcium-Alginate Beads, Riham Abou-Lilah, Nagwa Badway, Azza Gamal, Hoda Rizk, Amal Ali, Mostafa Elshorbagy
Modeling Of The Dynamics Adsorption Of Some Hazardous Elements From Aqueous Solution Onto Bentonite-Calcium-Alginate Beads, Riham Abou-Lilah, Nagwa Badway, Azza Gamal, Hoda Rizk, Amal Ali, Mostafa Elshorbagy
Al-Azhar Bulletin of Science
Encapsulation of bentonite-Ca-alginate was employed for discharge of Cs+, Sr2+, UO22+ and Co2+ from aquatic solution. Preferable pH for elimination of these ions was 5.5. For radiation stability, bentonite-Ca-alginate was investigated; a 60Co source was used to expose it to gamma radiation. Data obtained from (FT-IR) assessed radiation-induced effect on a stability of bentonite-Ca-alginate. Irradiated samples untill 100 kGy do not impair an absorption of an ions examined. In a column application, bentonite-Ca-alginate composite beads were examined for the discharge of these ions from multicomponent solution using fixed-bed column. Effect on column output of various parameters, like bed height, flow …