The Department of Chemistry at the Faculty of science of Mosul University discussed on Wednesday, September 9, 2026 the doctoral thesis tagged “preparation and diagnosis of a number of molten salts and their complexes with a number of transitional and non-transitional elements and their study in environmental applications”, submitted by researcher Israa Adnan said Al-shukrji from the branch of inorganic chemistry. The research involved the preparation of a new series of organic pyridinium salts based on alkylation reactions of pyridinium derivatives using various alkyl halides, as well as the preparation of complex salts through the reaction of prepared organic salts with chlorides of a number of transition chain metals, including manganese, iron, cobalt, nickel, copper, palladium binary, as well as extrinsic, with a molar ratio (1:2) of organic salt of pyridinium to metal chloride. The diagnosis of the prepared organic salts was carried out using a number of physical and spectroscopic techniques and methods, including nuclear magnetic resonance spectroscopy (1H-NMR and 13C-NMR), energy–dispersive X-ray spectroscopy (EDX), mass spectrometry (GC), infrared spectroscopy (IR), ultraviolet-visible electronic spectra (UV-Vis), as well as molar electrical conductivity measurements. The prepared complex salts were also diagnosed using atomic absorption spectroscopy, infrared (IR), ultraviolet–visible (UV-Vis) electronic spectra, magnetic measurements, and molar electrical conductivity. The results of the molar electrical conductivity showed that the prepared organic salts and complex salts exhibit the behavior of a conductive electrolyte in the proportions of (1:1) and(2:1), respectively. The results of magnetic measurements and ultraviolet–visible electronic spectra also confirmed that all the prepared complex salts have a tetrahedral structure around the metal atom, except for the complex salts of binary palladium, which take the planar-square structure. The third part of the study involved loading a number of prepared organic salts (E3-E1) and complex salts of binary palladium (E3Pd-E1Pd) onto activated carbon, studying them using elemental analysis (EDX) and electronic scanner (SEM). The results showed that activated carbon, after being loaded with prepared organic and complex salts, has a high surface area and a large number of cracks and pores, which increases the rate of adsorption and carbon dioxide gas retention. In the final part of the research, the efficiency of carbon dioxide sequestration was evaluated using a number of organic pyridinium salts and their complexes for binary Palladium after loading on Activated Carbon, in order to study the effect of the structure of the prepared compounds in improving the adsorption performance. The results showed a clear decrease in the percentage of residual CO2 over time compared to unloaded activated carbon, which confirms the success of the loading process and its role in enhancing the efficiency of gas retention. In general, the study confirmed that the prepared compounds possess high adsorption efficiency and promising application potential in carbon dioxide sequestration, which makes them suitable materials to contribute to reducing carbon emissions and supporting their application in gas purification technologies, in line with the trends of green chemistry and sustainable development. The discussion Committee was chaired by Prof. Dr. Maher Abdul Razzaq Mohamed, and the membership of Prof. Dr. Ahmed Shaker marmous, Prof. Dr. sohaba Ali Ahmed, Assistant Prof. Dr. Khansa Shaker Nematullah, and Assistant Prof. Dr. Amra fares Mohamed, while Prof. Dr. Asim Adel Sabah participated as a member and supervisor. On the sidelines of the discussion, on behalf of the dean of the Faculty of Science, the esteemed Dr. Hiam Adel Ibrahim, the head of the Department of chemistry, the assistant professor Dr. Firas Ahmed thenoun, presented a letter of thanks and appreciation to the professor Dr. Ahmed Shaker marmous from the Faculty of Science/University of Tikrit, in appreciation of his scientific efforts and his active participation in the thesis discussion Committee, his eagerness to travel, and in appreciation of his giving and contributions in support of the scientific and academic career. Our wishes to the researcher and to all graduate students and faculty teachers for success, excellence and creativity.

Government information and Communication Division

Friday, September 10, 2026