Investigation of Ti doping on the structural, optical, and magnetic properties of ZnO nanoparticles

Abstract

Ti -doped ZnO (TixZn1-xO x= 0.00, 0.05, 0.10, 0.15) nanoparticles have been synthesized through co -precipitation approach. X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL), UV-Visible spectroscopy, and Vibrating Sample Magnetometer (VSM) have been used to characterize the samples. X-Ray Diffraction (XRD) analysis manifested the hexagonal wurtzite structure. The crystallite size decreased from 37 nm to 29 nm as dopant concentration is increased. Fourier transform infrared analysis showed the absorption bands of ZnO, with few within the intensities. SEM investigation showed the irregular shape and agglomeration of the particles. Ti, Zn, and O composition were determined from EDX analysis and confirmed the purity of the samples.PL spectra showed a near band edge emission and visible emission.Vibrating sample magnetometer (VSM) demonstrated pure and doped samples exhibited ferromagnetism behavior at room temperature.

Enhanced Photocatalytic Activity of Metal‐Metal‐Nonmetal Multidoped TiO2 Nanoparticles towards Visible Light

“…Ostwald ripening, which takes place at the time of the annealing process, is the reason for this [35] . Agglomeration of particles is noticed due to the high surface energy of the produced nanoparticles [45] . Due to weaker physical interparticle interactions, the primary nanosized particles have condensed into densely packed agglomerates [46] .…”

“…[35] Agglomeration of particles is noticed due to the high surface energy of the produced nanoparticles. [45] Due to weaker physical interparticle interactions, the primary nanosized particles have condensed into densely packed agglomerates. [46] The incorporation of nonmetal and metal ions at the time of synthesis has not impacted the catalyst's morphology, as the morphology shown by the SEM picture.…”

Electrical Properties of Gd- and Mn-Doped Fe2O3-LaFeO3- La2O3 Thick Films for Ethanol Gas Sensors

“…The XRD characterization were conducted using PANanalytical X'Pert PRO seri PW3040/X0 and informed the crystal structure that obtained from the XRD graphical pattern that formed from the intensity and the angle of bragg diffraction which matched to the literatures. Then, the crystallite size is also informed which is obtained from the calculation using Debye-Scherrer equation as shown in Equation 1 [19][20][21][22]. To use this "Old Style Equation" as a "template," highlight the entire line, then use cut and paste to the new location.…”

Spin-Polarized Total-Energy Calculations on Designing Magnetic Single-Atom Catalysts on the ZnO(0001̅) Surface with Pt and Pd

“…For example, ZnO nanoparticles doped with Ti possess room-temperature ferromagnetism. 27 Also, a half-metal ferromagnetic character appears in Sc-doped ZnO. 28 Upon doping with transition metals, ZnO becomes even more versatile and finds many new applications at the nanoscale, such as spintronics, solar cells, optoelectronic devices, sensors, etc.…”

“…Other reports by Hou and his team , demonstrate that the magnetism in the single-vacancy ZnO is induced by itinerant electrons of negative monovalent or divalent O ions. For example, ZnO nanoparticles doped with Ti possess room-temperature ferromagnetism . Also, a half-metal ferromagnetic character appears in Sc-doped ZnO …”