Abstract

TiO2−MgO mixed metal oxide nanoparticles with variable MgO content were prepared by a simple sol−gel method. The nanoparticles were characterized by power X-ray diffraction, field emission scanning electron microscopy coupled with energy dispersive X-ray analysis, transmission electron microscopy and UV−visible diffuse reflectance spectroscopy. X-ray diffraction results indicate that the presence of MgO prevents the complete transformation of anatase to rutile in the TiO2−MgO mixed metal oxide nanoparticles prepared using lower MgO content even at 900°C. The presence of MgO in TiO2−MgO nanoparticles suppresses the crystal growth of TiO2 leading to a blue-shift of its band gap. The TiO2−MgO samples prepared using higher MgO content and calcined at 700°C and 900°C lead to mixed metal oxide nanoparticles with high band gap (~4.3eV) due to the formation of MgTiO3.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.