Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spray drying as feasible processing technique to enhance the photocatalytic activity of the Nb2O5/carbon xerogel composite

Full text
Author(s):
de Moraes, Nicolas Perciani [1] ; Anselmo, Rodrigo Barbosa [1] ; Sartor, Luis Otavio [1] ; Juca Dantas, Gustavo Viegas [1] ; Rodrigues, Liana Alvares [1] ; Chaguri e Carvalho, Livia [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Escola Engn Lorena EEL, Dept Engn Quim, Estr Municipal Campinho S-N, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Materials Letters; v. 273, AUG 15 2020.
Web of Science Citations: 0
Abstract

This work aimed to study the effect of the spray drying technique on the morphological, structural, optical and photocatalytic properties of the Nb2O5/carbon xerogel composite. The results obtained show that the spray drying technique causes a significant change in the morphology of the composites, resulting in spherical and uniform particles. Structurally wise, the composite produced using spray drying has the hexagonal structure of the niobium oxide, whereas the material produced using evaporative drying has an amorphous structure. The optical properties of the composite were also affected, as the bandgap energy of the spray dried material is lower than the one obtained for the composite obtained through evaporative drying. The spray dried material presented superior adsorption capacity and photocatalytic efficiency, indicating that the modifications introduced by the spray drying are suitable to enhance the photocatalytic efficiency of the Nb2O5/carbon xerogel composite. (C) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 17/03428-2 - Change in the drying stage to obtain niobium-based photocalisers.
Grantee:Lívia Chaguri e Carvalho
Support type: Regular Research Grants
FAPESP's process: 18/10492-1 - Photocatalytic evaluation of heterojunctions semiconductor/ZnO/carbon xerogel in the photodegradation of 4-chlorophenol in both fluidized bed and batch reactors
Grantee:Liana Alvares Rodrigues
Support type: Regular Research Grants
FAPESP's process: 18/16360-0 - Development of ZnO/Bi2O3/Carbon xerogel ternary composites as photocatalysts for the degradation of persistent organic pollutants
Grantee:Nicolas Perciani de Moraes
Support type: Scholarships in Brazil - Doctorate