Open AccessRole of Cationic and Anionic Dopants on the Structural, Morphological, Optical and Magnetic Properties of Lead Oxide Nanocrystals Prepared by Solvothermal Method
Author(s) -
N. Saraswathi,
K.J. Abhirama
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23289
Subject(s) - orthorhombic crystal system , thermogravimetric analysis , dopant , nanoparticle , calcination , differential thermal analysis , chemistry , lead oxide , oxide , solvothermal synthesis , particle size , nanocrystal , band gap , analytical chemistry (journal) , chemical engineering , doping , materials science , diffraction , nanotechnology , inorganic chemistry , crystallography , crystal structure , organic chemistry , optics , physics , optoelectronics , engineering , catalysis
A facile and simple microwave assisted solvothermal technique was adopted for the synthesis ofundoped and doped (Mn2+, S2–) lead oxide nanoparticles. Thermogravimetric analysis and differentialthermal analysis were carried out to realize the thermal behaviour of PbO nanoparticles. The synthesizednanoparticles were annealed at about 400 ºC. The calcined samples were characterized by powderX-ray diffraction, SEM, EDX, UV spectroscopic analysis and VSM measurement. The diffractionpatterns of the prepared nanoparticles showed the formation of an orthorhombic phase of lead oxide.All the samples were in nano- regime with an average grain size of 22-26 nm. Spherical morphologyof the samples was revealed in the SEM micrographs. EDX pattern confirmed the presence of cationicand anionic dopants. The band gap energy values range from 4.2 to 5.6 eV. The VSM measurementrevealed that the sample has weak ferromagnetic nature.