About DJPS    Editorial Board    Advisory Board    Secretary of Journal    Events & News         

 

DJPS

Diyala Journal For Pure Science

Scientific Refereed Journal Published By College of Science - University of Diyala

 

Admin of Website

djps.1401.330B

Diyala Journal For Pure Sciences DJPS

ISRA Impact Factor:3.715

P- ISSN:2222-8373, E-ISSN:2518-9255

Volume 14, Issue 1, Part 1 , Januar y. 2018

 

 

Synthesis of a-Fe2O3 Nano Powders by Novel UV Irradiation Method

Ahmed Najem Abd , Zaid Hamid Mahmoud

Year: 2018, Volume: 14, Issue: 1, Part:1

Pages: 57-67 , DOI: http://dx.doi.org/10.24237/djps.1401.330B 

Language: English

Download :  

 

Abstract


 

Alpha phase of iron oxide nanoparticles with different sizes from 10 to 45nm were synthesized by photolysis technique. Salicylaldehyde and amino phenol were used as started material to produce Schiff base which coordinate with iron metal to prepare complex. Nanoparticles were prepared by photolysis the ferric complex and calcined its salt. The result was showed reaction type oxidation-reaction due to transfer the charge from iron to ligand and convert ions for iron from +3 to +2. The irradiation system that used to prepare nanoparticles is 125 watts, ice bath was used to avoid high temperature and ensure happens photoreaction just. From the results, shift for C=N bond toward high frequency after irradiation was occur due to electronegativity of ferrous ions that product and the results from UV-visible technique obtained many type of transition for ligand and it complex at different wavelength. Energy gap for nanoparticles was determined by using UV-Vis while the morphology and average of nanoparticles were characterized by using AFM and TEM respectively. The identity of oxide was characterized by using XRD.

 

Keywordsa-Fe2O3, Nano powder, Salicylaldehyde (C7H6O2)a 2-amino phenol (C6H7NO), 125W lamp, Uv-irradiation.

Copyright © 2017 Diyala Journal For Pure Science (DJPS) . All rights reserved
3:45