@article {Falk:2016:0002-7820:1968,
title = "Colloidal SolGel Synthesis and Photocatalytic Activity of Nanoparticulate Nb2O5 Sols",
journal = "Journal of the American Ceramic Society",
parent_itemid = "infobike://bsc/jace",
publishercode ="bp",
year = "2016",
volume = "99",
number = "6",
publication date ="2016-06-01T00:00:00",
pages = "1968-1973",
itemtype = "ARTICLE",
issn = "0002-7820",
eissn = "1551-2916",
url = "https://www.ingentaconnect.com/content/bsc/jace/2016/00000099/00000006/art00022",
doi = "doi:10.1111/jace.14217",
keyword = "Nb2O5 Sol‐Gel, photocatalysis, synthesis, nanoparticles",
author = "Falk, Gilberto and Borlaf, Mario and Bendo, Tatiana and Novaes de Oliveira, Antonio Pedro and Rodrigues Neto, Jo{\~a}o Batista and Moreno, Rodrigo",
abstract = "A detailed study of a novel synthesis via colloidal solgel route for obtaining nanoparticulate Nb2O5 was performed. Parameters such as temperature and H+:Nb5+ and Nb5+:H2O molar ratios were controlled in order
to determine the best conditions of synthesis. Moreover, particle size distribution, zeta potential, structure by Xray diffraction, and the photocatalytic activity of the particulate sols were also evaluated. The obtained results indicate that the colloidal solgel synthesis
is a good alternative for obtaining Nb2O5 either as stable nanoparticulate sol or as a nanosized powder. Nb2O5 amorphous nanoparticles with an average size of 20 nm were obtained by controlling the synthesis variables. The heattreatment process
allowed the formation of Nb2O5 with orthorhombic structure that transforms at higher temperatures to monoclinic phase. The highest photocatalytic activity was observed under = 365 nm, the smallest UV energy used in the experimental tests.",
}