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Vol. 29 No. 12 (2017): Vol 29 Issue 12

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Influence of Temperature and Capping Molecules on the Synthesis of Cubic Structured Lead Sulfide Nanoparticles from Substituted Benzimidazole Dithiocarbamate Complex

https://doi.org/10.14233/ajchem.2017.20837
C.S. Thangwane
Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark 1900, South Africa
T. Xaba
Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark 1900, South Africa
M.J. Moloto
Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark 1900, South Africa

Corresponding Author(s) : T. Xaba

thokozanix@vut.ac.za

Asian Journal of Chemistry, Vol. 29 No. 12 (2017): Vol 29 Issue 12

Abstract

The synthesis of lead sulfide nanoparticles has been accomplished by varying the effect of reaction conditions such as type of capping agents and temperature. 2-Methylbenzimidazole dithiocarbamate-Pb(II) complex was prepared by a modified single step method and thermolized into hexadecylamine (HDA) and/or trioctylphosphine oxide (TOPO) at different reaction temperatures (140, 160 and 180 ºC) to produce PbS capped nanoparticles. The absorption and emission spectra of the synthesized PbS nanoparticles capped with HDA or TOPO were increasing towards the higher wavelength when the reaction temperature was increased. The X-ray diffraction patterns of all the prepared PbS nanoparticles exhibited cubic structured particles. The TEM images of PbS-TOPO capped nanoparticles revealed agglomerated particles whereas PbS nanoparticles capped with HDA produced polydispersed nanocubes.

Keywords

Dithiocarbamate complex Trioctylphosphine oxide Hexadecylamine Lead sulfide nanoparticles
Thangwane, C., Xaba, T., & Moloto, M. (2017). Influence of Temperature and Capping Molecules on the Synthesis of Cubic Structured Lead Sulfide Nanoparticles from Substituted Benzimidazole Dithiocarbamate Complex. Asian Journal of Chemistry, 29(12), 2711–2716. https://doi.org/10.14233/ajchem.2017.20837
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