Abstract
Lead(II) methyl xanthate [Pb(S2COMe)2] was synthesized and characterized by single crystal X-ray crystallography. The molecular structure showed a distorted tetrahedral geometry around Pb(II) with each monomeric unit linked with another through Pb···S interactions. The compound was used to prepare hexadecylamine capped PbS (HDA-PbS) and oleylamine capped PbS (OLA-PbS) nanoparticles. The PbS nanoparticles were indexed to the cubic PbS crystalline phase with particle sizes of 4.5 – 34.5 nm. The estimated optical bandgaps obtained from the tauc’s plots were 3.47 and 3.30 eV for HDA-PbS and OLA-PbS, respectively, which are blue shifted in comparison to bulk PbS. The photodegradation of methylene blue using PbS as photocatalyst shows that HDA-PbS have the best degradation efficiency of 77.70% after 240 min.
Graphical Abstract
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Disclosure statement
No potential conflict of interest was reported by the authors.
Table 1. Crystal data and structural refinement for [Pb(S2COMe)2].
Table 2. Selected bond lengths and angles for [Pb(S2COMe)2].