Structural, optical and antibacterial performance of the Mg doped TiO2 nanoparticles synthesized using sol–gel method

• Published in: Materials today : proceedings Vol. 67; pp. 694 - 700
• Main Authors: Sinha, Suyash, Patel, Viral, Verma, Harshita, Kumar Akhani, Trilok, Singh Rathore, Mahendra
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2022
• Subjects: Mg doping; Photoluminescence; TiO2; UV–vis-NIR spectroscopy; XRD; Mg doping; XRD; UV–vis-NIR spectroscopy; Photoluminescence; TiO2
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2022.06.543

Mg doped TiO2 nanoparticles were synthesized by chemical based sol–gel techniques is to investigate the effects of Mg doping concentration on the structural, optical, antibacterial and luminescence properties of TiO2 nanoparticles. Pure and doped TiO2 samples of various concentration were annealed at 400 °C to achieve the desired phase of crystalline structure. XRD results reveals that the prepared samples were exhibits crystalline nature. The crystallite size was observed around 9.7 nm which decreased to 6.8 nm with an increase the doping concentration of Mg. Optical transmittance increases from 80% to 90% and optical band gap varies from 3 eV to 3.07 eV with doping of Mg in TiO2. The photoluminescence emission exhibit in near UV to blue resign from the pure and doped TiO2 nanoparticles. Red shift observed in PL bands. Antibacterial activity was also examined and studied the effects of concentration on the performance. The tuning the properties of TiO2 with doping of Mg have been discussed in details.