Niobium pentoxide produced by a novel method microwave assisted combustion synthesis

• Published in: Chemical physics letters Vol. 729; pp. 37 - 41
• Main Authors: Nakagomi, Fábio, Cerruti, Sarah Espinoza, de Freitas, Márcio Roberto, Freitas Neto, Ernesto S., de Andrade, Fabrício Vieira, Siqueira, Guilherme Oliveira
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 16.08.2019
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2019.05.003

[Display omitted] •Niobium pentoxide nanoparticles were synthesized by microwave assisted combustion.•The material was characterized by XRD, TEM, FTIR and gas adsorption.•Tests showed good results for photocatalytic applications. Microwave Assisted Combustion technique was employed to prepare higly stable niobium pentoxide - Nb2O5 - nanoparticles using ammonium niobium oxalate as precursor, ammonium nitrate as oxidant and urea as fuel. The synthetized sample has showed good results for catalytic processes and its morphological and crystalline characterizations have been performed using gas adsorption, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet–visible absorption spectroscopy and X-ray diffraction. This routine is quite promising for massive production of high quality crystalline Nb2O5 nanoparticle without further calcination or heat treatment for photocatalytical processes.