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IJC-A Vol.51A(06) [June 2012] >


Title: CdO and CdS nanoparticles from pyrolytic method: Preparation, characterization and photocatalytic activity
Authors: Mondal, Sandip
Chattopadhyay, Tanmay
Das, Sudhanshu
Maulik, Sankar Roy
Neogi, Swarup
Das, Debasis
Keywords: Coordination polymers
Nanoparticles
Semiconductors
Photocatalytic activity
Pyrolytic technique
Cadmium oxide
Cadmium sulphide
Issue Date: 5-Jun-2012
Abstract: CdO and CdS nanocrystals have been prepared via simple thermal treatment of coordination polymers, viz., [Cd(dca)2(Mim)2]n and [Cd(SCN)2(Bim)2]n (where Bim and Mim are benzimidazole and 1-methylimidazole respectively) as precursors at 600–650 °C in air for 2 h. A variety of techniques like infrared spectroscopy, X-ray diffraction, scanning electron microscopy and thermal gravimetric analysis have been employed to carry out structural characterization of these nanoparticles. The optical band gap of these materials, estimated to be about 2.43 and 2.50 eV respectively, establish a relationship between energy band gap of bulk and nanomaterials. Photocatalytic reactivity of these nanomaterials are evaluated by studying the degradation of C. I. Reactive Yellow 84, a popular and widely used reactive dye in cotton industry.
Page(s): 807-811
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.51A(06) [June 2012]

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