Biosynthesis of Metal Sulfide Nanoparticles using Plant Leaf Extract

ISBN-13: 9783659442704 / Angielski / Miękka / 2013 / 104 str.

Awwad Akl;Salem Nida;Abdeen Amany

Opis

A simple route was followed for synthesis zinc sulfide (ZnS) and cadmium sulfide (CdS) nanoparticles with different sizes at ambient temperature. Zinc acetate, zinc chloride, cadmium acetate and cadmium nitrate were utilized as a source for zinc and cadmium ions and sodium sulfide as a source of sulfide ions. Liugstrum valgure leaf extract was used as a capping and dispersing agent. The change of particle size, morphologies and crystal structures with the molar ratio of metal to sulfide salt and amount of Ligustrum valgure leaf extract was obtained from scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction pattern results. The effect of particle sizes on the optical properties was confirmed from UV-visible data. The optical band gap for ZnS nanoparticles was found to be 4.5 ev and for cadmium sulfide nanoparticles 2.7 ev.

O autorze

Akl Awwad recieved his Ph.D in physical chemistry from Strathclyde University, Glasgow, U.K. He is currently IEE visiting professor at Royal Scientific Society, El Hassan Science City, Jordan. His current research interests nanomaterials. Dr Nidá Salem is assistant professor at Jordan University. Amany Abdeen is assistant researcher at RSS.