The Role of Nb Addition in TiO2 Nanoparticles: Phase Transition and Photocatalytic Properties (Phys. Status Solidi A 21∕2018). Issue 21 (12th November 2018)

• Record Type: Journal Article
• Authors: da Silva, Luís F.; Avansi, Waldir; Catto, Ariadne C.; Rodrigues, João E. F. S.; Bernardi, Maria I. B.; Mastelaro, Valmor R.
• Is Part Of: Physica status solidi. Volume 215:Issue 21(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-11-12
• Subjects: Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201870049
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract : Photocatalysis This paper reports an experimental investigation on the effects of adding Nb on the thermal, structural, and photocatalytic properties of the TiO2 nanoparticles. It is demonstrated that the phase transition could be controlled by Nb addition to TiO2 lattice. Differential thermal analysis, X‐ray diffraction, and Ti K‐edge X‐ray absorption near edge structure measurements reveal that Nb addition contributed to retard the anatase‐to‐rutile phase transition, while micro‐Raman spectroscopy analysis points out that anatase and rutile phases were distributed non‐homogeneously on the samples. Photocatalysis experiments indicate that Nb addition leads to a significantly improve in the degradation of methylene blue and rhodamine B under ultraviolet irradiation being mainly influenced by order‐disorder. More details can be found in article number1800321 by Luís F. da Silva and co‐workers. The authors thank Mr. Enio longo and Mr. Gabriel Luciano da Silva Sasdelli for designing the cover image.