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

Dye Degradation Mechanisms Using Nitrogen Doped and Copper(II) Phthalocyanine Tetracarboxylate Sensitized Titanate and TiO2 Nanotubes

Full text
Author(s):
Souza, Juliana S. [1] ; Pinheiro, Mauricio V. B. [2] ; Krambrock, Klaus [2] ; Alves, Wendel A. [1]
Total Authors: 4
Affiliation:
[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210580 Santo Andre, SP - Brazil
[2] Univ Fed Minas Gerais, Dept Fis, ICEx, BR-31270901 Belo Horizonte, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Physical Chemistry C; v. 120, n. 21, p. 11561-11571, JUN 2 2016.
Web of Science Citations: 6
Abstract

Several strategies have been used to increase the photocatalytic activity of titanate and titanium dioxide nanotubes (TiNTs and TiO2NTs) using visible light, including doping with nitrogen and sensitization with copper phthalocyanine. Additionally, TiNTs and TiO2NTs have been successfully used in, catalysis mediated by hydrogen peroxide. In this work, we describe the synthesis of nitrogen doped and copper phthalocyanine sensitized TiNTs and TiO2NTs for photodegradation using visible light and for catalysis mediated by hydrogen peroxide. The combined effect of nitrogen doping and copper phthalocyanine sensitization promoted a quenching of the photocatalytic activity of the catalysts. However, the sensitization increased the catalytic effect of the catalysts compared with the nonsensitized species. These results suggest that the generation of the reactive species responsible for the dye degradation happens through different mechanisms, and the topic is discussed in this article. (AU)

FAPESP's process: 15/24018-1 - Polymer-Peptide Conjugates for hydrogel formulation and its usage in detection
Grantee:Wendel Andrade Alves
Support Opportunities: Regular Research Grants
FAPESP's process: 11/17938-6 - Study of the Photocatalytic Activity of Nitrogen-Doped Titanate Nanotubes via EPR Technique
Grantee:Juliana dos Santos de Souza Silva
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 13/12997-0 - Hierarchical self-organization of peptide amphiphiles: fundamental mechanisms and potential applications
Grantee:Wendel Andrade Alves
Support Opportunities: Regular Research Grants
FAPESP's process: 08/57805-2 - Institute of Bioanalytics
Grantee:Lauro Tatsuo Kubota
Support Opportunities: Research Projects - Thematic Grants