Advanced search
Start date
(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 metal doping in the photocatalytic properties of carbon xerogel-Nb2O5 composite towards visible light degradation of methylene blue

Full text
de Moraes, Nicolas Perciani [1] ; Caetano Pinto da Silva, Maria Lucia [1] ; Rodrigues, Liana Alvares [1]
Total Authors: 3
[1] Univ Sao Paulo, 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. 228, p. 486-489, OCT 1 2018.
Web of Science Citations: 1

This study explores the development of metal doped hybrid Nb2O5/carbon xerogel photocatalysts. The materials were characterized by diffuse reflectance spectroscopy, scanning electron microscopy, dispersive energy spectroscopy and X-ray diffraction. The X-ray diffractograms of the materials are characteristic of amorphous carbon. The palladium doped composite also exhibits the hexagonal phase of the niobium oxide. The chemical elements are evenly distributed on the materials, confirming the dispersion of the doping metals in the material matrix. All composite materials absorb radiation in the visible light region. All composites exhibited photocatalytic activity under visible radiation, except for the iron doped material. The palladium doped material showed superior efficiency in the degradation of methylene blue, due to its lower band gap and higher absorption of visible light. (C) 2018 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 15/08995-7 - Preparation, modification and catalytic evaluation of Nb2O5-based photocatalysts
Grantee:Liana Alvares Rodrigues
Support type: Regular Research Grants
FAPESP's process: 16/04244-0 - Preparation, modification and catalytic evaluation of TiO2-based photocatalysts
Grantee:Nicolas Perciani de Moraes
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 16/20920-5 - Heterogeneous photocatalysis applied in the degradation of organic pollutants using a hybrid zinc oxide-carbon xerogel as catalyst
Grantee:Nicolas Perciani de Moraes
Support type: Scholarships in Brazil - Master