Transition Metal (Ni) Doped SnO₂ Nanoparticles Synthesized by Co-Precipitation Method

Abstract

In this work, we have been reported the transition metal (Ni) doped SnO 2 nanoparticles were successfully prepared by chemical co-precipitation method with various Ni doping concentrations such as 0%, 2% and 4%. The prepared Ni doped SnO 2 nanoparticles characterized by X-ray diffraction pattern (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), UV-Vis Spectroscopy and Photoluminescence Spectroscopy (PL). The XRD Pattern confirms the presence of polycrystalline nature with the tetragonal structure of SnO 2 and the peaks are identified with the JCPDS card No. 88-0287. The SEM image indicates that the particles were irregular shape for all prepared samples. The SEM image showed that the agglomeration process is occurring slowly down with the inclusion of Ni doping content. An EDX study confirms the presence of Sn, O and Ni elements. In FTIR studies the functional groups were identified based on host and doping materials. The minimum band gap value obtained for 0% Ni concentration. When the doping concentration increases, band gap also increases. From PL studies strong band orientation was observed.