Speaker Biography

Mahjoub Jabli

Associate professor, High Institute of Technological Studies (ISET of Ksar Hellal), Monastir, Tunisia

Title: Green synthesis of copper nanoparticles using biological Cynomorium Coccineum L. and Nerium Oleander extracts and study of their interaction with organic pollutants

Mahjoub Jabli

Dr. Mahjoub Jabli has his expertise in the valorization and chemical modification of natural products for environmental applications. He got his doctor degree in polymer and textiles since 2012. He is an associate professor in the same field at High Institute of Technological Studies (ISET of Ksar Hellal) Monastir Tunisia. He is an active researcher and he published till to now more than 26 articles in international journals.



The synthesis of nanoparticles has, progressively, gained more attention due to the important characteristics that they provide including a large surface area, small size, and other physicochemical parameters. This feature makes nanoparticles have multiple applications in various fields. Herein, the current investigation highlights the use of an ecological synthetic procedure to reduce copper sulfate into copper oxide nanoparticles using biological molecules of either Cynomorium Coccineum L. or Nerium Oleander extracts. FT-IR spectrum data reveal that the natural extracts were rich of carbonyl groups, phenolics, and other reducing agents which are responsible for the green synthesis of copper nanoparticles. SEM analysis showed that the nanoparticles vary in size and shape distribution due to the chemical composition of the studied extracts. The purity of the metal particles was proved by EDX analysis showing the presence of elemental copper oxide. The crystalline nature of the prepared nanoparticles has been confirmed using the XRD analyses. The prepared biological nanoparticles were, further, studied to interact with organic pollutants such us textile dyes. Methylene blue dye was chosen as a model. Experiments were performed under the change in initial dye concentration, adsorption dose, contact time and pH value. The equilibrium adsorption capacities were 81.2 mg/g and 64 mg/g using nanoparticles synthesized from Nerium Olenader and Cynomorium Coccineum L., respectively. These values represent a level comparable to some other common sorbents. In summary, biosorption effectiveness and environmental aspects of the prepared biological nanoparticles make them an ideal alternative to other expensive treatment methods.