Biogenic synthesis of PbS nanoparticles by Micrococcus luteus and their application in high-performance photodetectors.

ABSTRACT: This study reports the successful extracellular biosynthesis of lead sulfide (PbS) nanoparticles using non-motile, Gram-variable Micrococcus luteus bacteria. Optimization studies revealed optimal growth conditions for bacterial biomass and PbS production at room temperature, pH 7, and 96 h of incubation. The influence of precursor concentration on the growth and properties of PbS nanostructures was investigated. Characterization techniques, including X-ray diffraction, scanning electron microscopy, and FTIR spectroscopy, confirmed the formation of spherical, pure-phase PbS nanoparticles with sizes ranging from 150 to 250 nm. UV-visible absorption spectroscopy demonstrated strong absorption in the near-infrared region, indicative of the bandgap of PbS. Furthermore, an increase in precursor

SUBMITTER: Tarkas H 

PROVIDER: S-EPMC12289989 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature