Preparation and Characterization of Iron Oxide Nanoparticles on Disaccharide Templates


Affiliations

  • Maheshwara College of Pharmacy, Patancheru, Andhra Pradesh, 502 307, India

Abstract

We report here the preparation of nanoparticles of iron oxide in the presence of polysaccharide templates. Interaction between iron sulfate and template has been carried out in aqueous phase, followed by the selective and controlled removal of the template to achieve narrow distribution of particle size. Particles of iron oxide obtained have been cha racterized for their stability in solvent media, size, size distribution and crystallinity and it was found that when the negative value of the zeta potential increases, particle size decreases. A narrow particle size distribution with D100 = 275 nm was obtained with chitosan and starch templates. SEM measurements further confirm the particle size measurement. Diffuse reflectance UV-VIS spectra va lues show that the template is completely removed from the final iron oxide particles and powder XRD measure ments show that the peaks of the diffractogram are in agreement with the theoretical data of hematite. The salient observations of our study shows that there occurs a direct correlation between zeta potential, polydispersity index, band gap energy and particle size. The crystallite size of the particles was found to be 30-35 nm. A large negative zeta potential was found to be advantageous for achievi ng lower particle sizes, as the particles remained discrete without agglomeration.

Keywords

Iron Oxide Nanoparticles, Photon Correlation Spectroscopy, Disaccharides.

Subject Discipline

Pharmacy and Pharmacology

Full Text:

References

Colvin V L, Schlamp M C and Alivisatos A P, Sustainability for nanotechnology, Nature, 1994; 37, 354P.

Dormann J L, Bessais L and Fiorani D, Magnetic dynamics of y-Fe 203 nanoparticles, J. Phys, 1988; C20, 21,2015P.

Guin Debanjan, Manorama Sunkara V, Radha S and Nigam A K, synthesis of iron oxide nanoparticles of narrow size distribution of polysaccharide templates, Bull.Mater. Sci, 2006; 29, 617P.

Kesavan V, Sivanand S P, Chandrasekaran S, Koltypin Y and Gedanken A , Template-Free synthesis of monodispersed and single crystalline cantaloupe-like Fe2O3 superstructures, Angew. Chem. Int. Ed; 1999, 38, 3521P.

Liu X M, Fu S Y, Xiao H M and Huang C J, Synthesis and Characterization of molnodisperse iron oxide microspheres, J. Solid State Chem; 2005, 178, 2798P.

Morup S and Tronc E, Magnetic and structural properties of thin film nanoparticles, Phys. Rev. Lett; 1994, 32, 72-78P.

Rao C N R, Muller A and Cheetam A K (eds), The chemistry of nanomaterials: Synthesis, Properties and applications (Weinheim: Wiley); 2004.

Rao K J, Mahesh Krishnamurthy and Kumar Sundeep, A strategic approach for preparation of oxide nanomaterials, Bull. Mater. Science; 2005, 28,19-24P.

Sreeram K J, Indumathy R, Rajaram A, Nair BU and Ramasami T, synthesis of iron oxide nanoparticles of narrow size distribution of polysaccharide templates, Mater. Res.Bull; 2006, 41.1875P.

Sun S, Murray C B, Weller D, Folks L and Moser, Biosynthesis and Immobilization nanoparticals and their applications, Science; A 2004, 287, 1989P.

Suslick K S, Fang M and Hyeon T, Chemical synthesis of metal Nanoparticles, Journal of American Chem. Soc; 1996, 60, 118-119P.


Refbacks

  • There are currently no refbacks.