Solid State Science and Technology, Vol. 17, No 2 (2009) 167-174

ISSN 0128-7389

Corresponding Author: meftah_2010@yahoo.com

167

ABSORBANCE OF NICKEL NANOPARTICLES / POLYANILINE

COMPOSITE FILMS PREPARED BY RADIATION TECHNIQUE

Abdo Mohd Meftah, Elias Saion, Mohd Maarof B Hj Abd Moksin and

Hishamuddin B Zainuddin

Department of Physics, Faculty of Science, University Putra Malaysia,

43400 UPM Serdang, Selangor, Malaysia

 

ABSTRACT

Composites of conducting polymer – metal nanoparticles are of great interest in modern physical and chemical researchers due to their unique physical and chemical properties, which are distinct from those of the bulk metal and molecules .Conducting polymer – metal nanoparticles can be used in diverse fields such as electronics, electrocatalystics and optoelectronics. Conducting polyaniline and nickel nanoparticles blended in polyvinyl Alcohol (PVA) was synthesized by irradiating films containing aniline and NiCl2.6H2O salt at different concentrations with gamma radiation technique. In the same time the polyaniline and nickel nanoparticles were formed due to oxidation of aniline and reduction of nickel ion respectively by radiation. The structure analysis of polyaniline – nickel nanoparticles films were studied by X-Ray diffraction system which appears different diffraction peak angles at (2θ = 31.7, 45.5 , 56.6) respectively.The optical properties were investigated using UV –Vis spectrophotometer that show optical absorbance peak at λ= (725, 395) nm of polyaniline and nickel nanoparticles respectively .From the UV-spectrum the band gap energy (Eg) was deduced and found to be decreases from (1.54, 2.88) eV at 10 kGy to (1.35, 2.62) eV at 50 kGy for polyaniline and nickel nanoparticles respectively.

 

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REFERENCES

[1]. Jose Luis Elechiguerra, Justin L Burt, Jose R Morones, Alejandra Camacho-

Bragado, Xiaoxia Gao, Humberto H Lara and Miguel Jose Yacaman, 2005,

Journal of Nanobiotechnology 3:6

[2]. K. Lepkov´a, J. Clohessy, V.J. Cunnane, 2008, Electrochimica Acta 53 6273–

6277

[3]. S. Link, Z. L. Wang, and M. A. El-Sayed, 1999, J. Phys. Chem. B 103 3529-

3533

[4]. K. Lance Kelly, Eduardo Coronado, Lin Lin Zhao, and George C. Schatz, 2003,

J. Phys. Chem. B 107 668-677

[5]. M.A. Noginov, G. Zhu, M. Bahoura, J. Adegoke, C. Small, B.A. Ritzo, YP.

Drachev and Y.M. Shalaev, 2006, Phys. Rev. B 74, 184203

[6]. M. Lakshmi Kantama, Moumita Roy, Sarabindu Roy , M.S. Subhas ,Bojja

Sreedhar, B.M. Choudary, Rajib Lal De, 2007, Journal of Molecular Catalysis

A: Chemical 265 244–249

[7]. Zhu J J, Lin S W, Palchik O, Koltypin Y and Gedanken A., 2000, Langmuir 16

63-96.

[8]. K. Lepkov´a, J. Clohessy, V.J. Cunnane, 2008, Electrochimica Acta 53 6273–

6277

[9]. Heeger A J, 2002, Synthetic Metals 125 23-42

[10]. Patil A O, Heeger A J, Wudl F Chem. Rev. 88 182-200

[11]. Sambhu Bhadra, Nikhil K. Singha, Dipak Khastgir, 2006, Synthetic Metals 156

1148–1154