Document Details

Document Type : Thesis 
Document Title :
SYNTHESIS AND CHARACTERIZATION OF MULTI-WALLED CARBON NANOTUBE/ FERRITES MAGNETIC NANOCOMPOSITES
تحضير و توصيف مخاليط مغناطيسية متناهية الصغر لأنابيب الكربون النانونية مع الفريتات
 
Subject : Faculty of Sciences > Chemistry department 
Document Language : Arabic 
Abstract : In the present study, nano-crystalline manganese-zinc ferrites; Mn1−xZnxFe2O4 (x = 0.2 - 0.8) were successfully synthesized through a recycling process of spent Zn-C batteries adopting a new synthesis route using sucrose. This simple, economic and environmentally friend route was utilized for the production of multi-walled carbon nanotubes (MWCNTs) decorated with Mn1−xZnxFe2O4 nanoparticles presenting high surface properties of CNTs besides magnetic properties of ferrites. The obtained nano-composites were examined by XRD and FT-IR measurements for crystalline phase identification, TEM for particle size and morphology and VSM for magnetic properties. The results showed that the MWCNTs are homogeneously decorated with ferrite particles and an appropriate decoration mechanism was suggested and discussed. The effect of Zn-substitution on the structural and magnetic properties was investigated and discussed. The nano-composite; MWCNTs/Mn0.8Zn0.2Fe2O4 showed the higher magnetic sensitivity to be separated from aqueous solutions using normal magnet. To optimize the suitable ratio of MWCNTs to the entire magnetic material, different ratios of MWCNTs were investigated (viz. 10-70 %). The nano-composite with MWCNTs content of 70 % was utilized for solving the environmental problem caused by Crystal violet dye in aqueous solutions as an example of organic pollutants removal. The optimum adsorption conditions required for the complete removal of dye from aqueous solution was investigated and discussed. The adsorption process was found to follow a pseudo-second-order model with calculated thermodynamic parameters (∆G, ∆H and ∆S) suggested the spontaneity of the thermodynamically favorable adsorption process. 
Supervisor : Mohamed Abdel Fattah Gabal 
Thesis Type : Master Thesis 
Publishing Year : 1435 AH
2014 AD 
Added Date : Wednesday, July 2, 2014 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
انعام عطية الحارثيAl-Harthy, Enam AttiaResearcherMaster 

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