The Department of Materials Engineering at the University of Technology awarded a master's degree to the student, Ali Hussein Abdul Jabbar, Department of Materials Engineering / University of Technology for his thesis titled
"Green Synthesis and Surface Modification of Nanoparticles for Wastewater Treatment"
Abstract
This study focused on the green synthesis of silver nanoparticles using two separate heating techniques—hotplate and microwaves—with turnip root extract as the reducing and stabilizing agent. Furthermore, the green synthesis of graphene foam using date syrup carbon source, combined with potassium chloride as a substrate. The foam was modified with the prepared silver nanoparticles to enhance heavy metal removal and antibacterial efficiency. Silver nanoparticles with an average size of 47.5 nm, confirmed by scanning electron microscopy (SEM), demonstrated stability via zeta potential analysis. The graphene foam's morphology and structure were characterized using SEM and Raman spectroscopy. Filtration tests by atomic absorption indicated high removal efficiencies for cadmium (68%) and lead (39%), with lower efficiencies for zinc (10%) and chromium (27%). The addition of silver nanoparticles improved removal efficiencies for Cd²⁺ (75%), Zn²⁺ (22%), and Cr²⁺ (33%). The antibacterial efficacy test showed a 100% bacterial-killing rate post-modification.
the discussion committee consisted of ladies and Gentlemen
Asst. Prof. Dr. Khaled Khader Abbas, Chairman Prof.
Asst. Prof. Dr. Abeer Farouk Abbas, member
Asst. Prof. Aseel Mahmoud Abdullah, member
Asst. Prof. Dr Mayada Shanan Abdel, as a supervisor
Asst. Prof. Dr. Basma Hashem Mohammed, as a supervisor
In addition, the thesis was scientifically evaluated by Prof. Dr. Basma Mohammed Fahd, and Asst. prof. Dr. Ali Abdul Wahab Aati, and linguistically by Asst. prof. Dr. Jamal Jalal Daoud
