Asst. Lect.Laith Yassen Qassem

Laith Yassin Qasim is a teacher and lecturer at Al-Noor University College for the period from 2017 until now. Teaching medical laboratory tools (theoretical and practical) for the first stage, in addition to teaching laboratory management for the fourth stage. He holds a master’s degree in Chemistry from the University of Mosul under the supervision of Dr. Latif Hamid Ali in the field of Industrial Chemistry. I participated in more than one course in advanced teaching methods at the University of Mosul and elsewhere. Researcher and participant in conferences inside and outside Iraq. I participated in a large number of seminars, courses and workshops inside and outside the college. Friend of the Thalassemia Society in Nineveh / Member of the Thalassemia Committee at Al-Noor College. Organizing visits to the Thalassemia Hospital in Mosul and conducting trips and events for thalassemia patients. Implementing and organizing a booklet entitled “Hand in Hand with Thalassemia Patients” in cooperation with the Thalassemia Committee at Al-Noor College. Organizing and implementing blood donation campaigns for thalassemia and leukemia patients within Al-Noor College and in coordination with the Thalassemia Committee in Nineveh Governorate. Member of several committees in the department, such as the Coordination and Social Committee and the Committee for Discussing Graduate Research for the Fourth Stage. Member of the Iraqi Chemists Syndicate, Nineveh Branch. Of qualified individuals returning from outside Iraq and registered with the Ministry of Immigration and Displacement.

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Most cited scientific research

Abstract :

This study investigates synthesis of erbium vanadate nanostructures via carboxylic-assisted pechini method to optimization the morphology, size and physicochemical properties. The optimized ErVO4 nanoparticles with range size of 12–98 nm were subjected to photocatalytic ability for dye decolorization of Methyl orange (MO), Erythrosine (ER), and Methylene blue (MB) using ultraviolet irradiation. The correlation between the operational parameters (pollutant concentration and catalyst loading) and optoelectronic properties in addition to the catalytic performance of the ErVO4 structure is reported. The ideal condition for activity of ErVO4 nano-photocatalyst achieved in the 10 ppm aqueous solution of MB with catalyst loading of 0.05 g which presents 77.85% efficiency for decolorization of colored pollutant model. The recycle photocatalytic efficiency after 4 cycles is about 69.25%. Additionally, the photocatalytic mechanism direction studied in the presence of some scavengers which confirms the role of hydroxyl radical in the removal of MB. The magnetic properties of ErVO4 studied through VSM which shows the paramagnetic behavior with saturation magnetization is 1.3341 emu g-1.