Effect of precursors on the solid-state synthesis of semiconducting PbS nanostructures
Journal Title: Carbon - Science and Technology - Year 2013, Vol 5, Issue 1
Abstract
In this communication, we report facile and economical in-situ preparation of lead sulphide (PbS) nanorods and nanocubes within the Polyphenylene sulphide (PPS) matrix. PPS plays a dual role in the synthesis of the resultant nanostructures as - (i) a chalcogen source and (ii) a stabilizing matrix. We studied the effect of change of lead precursor from lead nitrate to acetate on the morphological properties of the resultant nanostructures. The effect of molar ratios of the reactants (1:1, 1:5, 1:10, 1:15 and 1:20) on the morphology of the products was also studied. The resultant nanocomposites were characterized by various physico-chemical techniques like X-ray Diffractometry (XRD), SEM equipped with EDAX, TEM and UV-Visible spectroscopy. The prima-facie observations suggest effective formation and subsequent entrapment of lead sulphide nanorods and nanocubes, respectively, when lead acetate and lead nitrate precursors were used. Additionally, simultaneous occurrence of nanocrystalline cubic lead as an impurity phase is noticed in case of heated admixtures for both the precursors.
Authors and Affiliations
Sujata Kasabe, Manish Shinde, Parag Adhyapak, Uttamrao Mulik and Dinesh P. Amalnerkar
KOH activated carbon multiwalled nanotubes
A protocol for chemical activation of Multi-walled carbon nanotubes (MWNTs) is presented. The modification of multi-walled carbon nanotubes is obtained by the solid / solid reaction between KOH and carbon nanotubes in a...
Study of cutting forces in machining of magnesium composite by response surface methodology
Metal Matrix composites (MMCs) has many excellent engineering properties like good strength to weight ratio, stiffness and increased wear resistance etc., These properties are the main requirements in aerospace, automoti...
Green synthesis of CdFe2O4 nanoparticles and their application for vapor sensing
The work reported about preparation of nanocrystalline CdFe2O4 through an combustion method and characterization of their microstructural, morphological and gas sensing properties. The structural properties investigated...
Diazoalkane addition reaction on the fullerene dimer C120O and characterization of the resulting mono-adduct
A mono-adduct of the fullerene dimer C120O was prepared via a diazoalkane addition reaction to obtain rod-like analogue of [60]PCBM opening the possibility to make photovoltaic and photosensitive layers of supra-molecula...
Management of Biogas spent slurry for hastening the composting of agro residues.
The demand for energy and the fertilizers are ever increasing. Organic farming has many advantages looking to the environment pollution, unproductive soil, less yields etc. By installation of a biogas plant serves both t...