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Title: Synthesis and characterization of Co(II)- and Zn(II)-8-hydroxyquinolate multilayer nanoparticles via successive ion layer adsorption and reaction technique
Authors: Haggag, Sawsan M S
Mahmoud, Mohamed E
Keywords: Multilayer films;Thin films;Nanoparticles;SILAR technique;Hydroxyquinolates;Cobalt;Zinc
Issue Date: Dec-2011
Publisher: NISCAIR-CSIR, India
Abstract: Successive ion layer adsorption and reaction (SILAR) technique was implemented to synthesize multilayer thin films of Co(II)- and Zn(II)-8-hydroxyquinolate nanoparticles. Two different approaches have been applied and compared for the formation of the thin films. The first approach is based on SILAR of Co(II)-(8HQ)2 (8HQ = 8-hydroxyquinoline) layer followed by Zn(II)-(8HQ)2, while the second is directed toward simultaneous SILAR of the two metal complexes. The two studied metal ions behave independently in their reaction with 8HQ with a molar stoichiometric ratio of 1:2 in the two metal complexes. Mixed metal complexes have not been identified under the experimental conditions. Under the same experimental conditions, Zn(II)-(8HQ)2 complex has been found to proceed four times faster than Co(II)-(8HQ)2 complex. The percentage compositions of the deposited thin film nanoparticles of Co(II)-(8HQ)2 and Zn(II)-(8HQ)2 complexes have also been tuned. Multilayer deposited and synthesized nanoparticles of Co(II)-(8HQ)2 and Zn(II)-(8HQ)2 complexes thin films have been monitored, and evaluated by using electron impact-mass spectra, scanning electron microscope, thermal analysis and elemental analysis.
Page(s): 1689-1696
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.50A(12) [December 2011]

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