Mechanochemical synthesis of PbS/Ni–Cr layered double hydroxide nanocomposite

The synthesis of lead(II) sulfide nanocomposite based on nickel–chromium layered double hydroxide was accomplished by the mechanochemical method at room temperature. The obtained nanocomposites were characterized by powder X-ray diffraction, UV-VIS spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy to estimate structural, optical and morphological properties. The PbS nanoparticles expanded the interlayer space of the layered double hydroxide, its crystal structure was destroyed, and the PbS nanoparticles attached to the surface affected the XRD result.