<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Characteristics of new nitrogen doped TiO2 prepared in an one-pot synthesis where titania (IV) complexes with ligands containing nitrogen atoms were used as a precursor are presented in this paper. The pale yellow nanopowder with crystallite size of 9 - 12 nm is obtained as a product of calcination at 310°C and repeated washing procedure. Elemental analysis shows that nitrogen (1.087 at. pct.) is present in obtained material. The morphology and microstructure of samples were examined by XRD, AFM, UV-VIS and FTIR-ATR techniques. These studies confirm that obtained powder demonstrates a significant decrease in the band gap energy value (<italic>E</italic>g = 2.83 eV) comparing to pure TiO2 (<italic>E</italic>g 3.22 eV). Presence of N-Ti-O bonds was confirmed <italic>via</italic> FTIR ATR. Products of the powder thermal decomposition were detected using TG-DSC technique coupled with mass spectrometry (MS). The report presents electrochemical studies which allow estimation of a flatband potential <italic>E</italic>fb on the basis of the Mott-Schottky relation.</abstract>

Characteristics of new nitrogen doped TiO2 prepared in an one-pot synthesis where titania (IV) complexes with ligands containing nitrogen atoms were used as a precursor are presented in this paper. The pale yellow nanopowder with crystallite size of 9 - 12 nm is obtained as a product of calcination at 310°C and repeated washing procedure. Elemental analysis shows that nitrogen (1.087 at. pct.) is present in obtained material. The morphology and microstructure of samples were examined by XRD, AFM, UV-VIS and FTIR-ATR techniques. These studies confirm that obtained powder demonstrates a significant decrease in the band gap energy value (Eg = 2.83 eV) comparing to pure TiO2 (Eg 3.22 eV). Presence of N-Ti-O bonds was confirmed via FTIR ATR. Products of the powder thermal decomposition were detected using TG-DSC technique coupled with mass spectrometry (MS). The report presents electrochemical studies which allow estimation of a flatband potential Efb on the basis of the Mott-Schottky relation.

Chemical characteristics of new nanopowder of titania doped with nitrogen atoms

Chemical Faculty, Department of Chemical Technology, Gdansk University of Technology, Gdansk, Poland

Faculty of Applied Physics and Mathematics, Department of Solid State Physics, Gdansk University of Technology, Gdansk, Poland

Advances in Materials Science

{"article-title":"Chemical characteristics of new nanopowder of titania doped with nitrogen atoms"}

Characteristics of new nitrogen doped TiO2 prepared in an one-pot synthesis where titania (IV) complexes with ligands containing nitrogen atoms were used as a...

Chemical characteristics of new nanopowder of titania doped with nitrogen atoms

Publié en ligne: 13 janv. 2010

Pages: 23 - 38

DOI: https://doi.org/10.2478/v10077-009-0013-1

Mots clés
TiO, nanomaterials, nitrogen doping, flatband potential, Mott-Schottky plot

This content is open access.

Chemical characteristics of new nanopowder of titania doped with nitrogen atoms

Publié en ligne: 13 janv. 2010

Pages: 23 - 38

DOI: https://doi.org/10.2478/v10077-009-0013-1

Mots clésTiO, nanomaterials, nitrogen doping, flatband potential, Mott-Schottky plot

This content is open access.

Mots clés
TiO, nanomaterials, nitrogen doping, flatband potential, Mott-Schottky plot