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

Effect of fluoride on the properties of spray-dried niobium-based composites: structure, porosity, particle size, morphology, and photoactivity

Full text
Author(s):
de Moraes, Nicolas Perciani [1] ; Anselmo, Rodrigo Barbosa [1] ; Bacani, Rebeca [1] ; Sartor, Luis Otavio [1] ; Rodrigues, Liana Alvares [1] ; Chaguri, Livia [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Escola Engn Lorena EEL, Dept Engn Quim, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Chemical Engineering Communications; OCT 2021.
Web of Science Citations: 0
Abstract

The development of simple and cost-effective photocatalytic materials in the treatment of effluents containing organic compounds is of extreme importance. This work evaluated the influence of fluoride ions on the synthesis of spray-dried Nb2O5/Carbon Xerogel composites. The material processed in the system with high fluoride concentration showed the presence of hexagonal NbO2F and Nb2O5 crystalline phases, whereas the material synthesized in lower fluoride concentration showed mainly the Nb2O5 phase(.) The higher content of the fluoride was detrimental to the adsorption capacity of the material and resulted in a significant reduction in the photocatalytic activity of spray-dried materials, probably due to the significant reduction in the specific surface area observed. (AU)

FAPESP's process: 19/07046-2 - Study of the variation of the process parameters in the performance of the spray dryer to obtain niobium precursors
Grantee:Rodrigo Barbosa Anselmo
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 17/03428-2 - Change in the drying stage to obtain niobium-based photocalisers.
Grantee:Lívia Chaguri e Carvalho
Support Opportunities: 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 Opportunities: 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 Opportunities: Scholarships in Brazil - Doctorate