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4795885 
Journal Article 
A COMPARATIVE STUDY ON CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITIES OF PbS AND Co DOPED PbS NANOPARTICLES 
Borhade, AV; Uphade, BK 
2012 
1 
Chalcogenide Letters
ISSN: 1584-8663 
9 
7 
299-306 
WOS:000307981100001 
Nanocrystalline particles of lead sulphide and cobalt doped lead sulphide were prepared by a hydrothermal method. The crystalline nature and particle size of the samples were characterized by powder X-ray diffraction analysis (XRD). The thermal stability of nanocrystals was studied by thermo gravimetric analysis (TGA). The morphology of prepared nanocrystals was studied by scanning electron microscope (SEM) and the presence of Co2+ in the sample was confirmed by energy dispersive X-ray analysis (EDX). The formation of the lead sulphide and cobalt doped lead sulphide nanoparticles was analyzed using FTIR analysis. The optical absorption of the synthesized samples was studied using UV absorption spectral analysis. The photoluminescence properties were studied using PL spectral analysis. The degradation of methyl blue (MB) in aqueous medium was studied by using lead sulphide nanoparticles. The cobalt doped lead sulphide works as an efficient photocatalyst for degradation of methyl blue dye. 
Nanocrystalline PbS; PL; XRD; SEM; EDX; Dye degradation