TY  - JOUR
AU  - Fidelis, Michel Z.
AU  - de Paula, Elaine
AU  - Abreu, Eduardo
AU  - Fuziki, Maria E.K.
AU  - Santos, Onelia A. A. dos
AU  - Brackmann, Rodrigo
AU  - Lenzi, Giane G.
PY  - 2023
DA  - 2023/09/22
TI  - Nb<sub>2</sub>O<sub>5</sub>: Percentage Effect of T/H Phase and Evaluation of Catalytic Activity, a Preliminary Study
JO  - Catalysis Research
SP  - 023
VL  - 03
IS  - 03
AB  - Due to its similar characteristics to titanium, niobium has become an attractive alternative in photocatalytic processes. Research indicates that titania has an optimal percentage of phases resulting in a commercial catalyst, P25, that contains more than 70% anatase with a minor amount of rutile and a small amount of amorphous phase. On the other hand, for Nb2O5, percentage optimization was little explored in the literature, which consists of studying the phases obtained via heat treatment individually and in different percentages via chemometric studies. In this context, the present research proposes to study the T/H phases of Nb2O5 and their mixture. The catalysts were used to assess the catalytic activity in salicylic acid (SA) degradation. The results demonstrated that a theoretical mixture of T/H phase, with an optimal ratio of 69.1% of the H phase, had more significant SA degradation than the tests with the pure phases. The mixture was able to degrade 87.9% of SA in 60 minutes.
SN  - 2771-490X
UR  - https://doi.org/10.21926/cr.2303023
DO  - 10.21926/cr.2303023
ID  - Fidelis2023
ER  -