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.)

Removal of Orange II (OII) dye by simulated solar photoelectro-Fenton and stability of WO2.72/Vulcan XC72 gas diffusion electrode

Full text
Author(s):
Paz, Edson C. [1, 2] ; Pinheiro, Victor S. [2] ; Sousa Joca, Jhonny Frank [2] ; Sotana de Souza, Rafael Augusto [3] ; Gentil, Tuani C. [2] ; Lanza, Marcos R. V. [4, 5] ; Moises de Oliveira, Hueder Paulo [2] ; Pereira Neto, Ana Maria [3] ; Gaubeur, Ivanise [2] ; Santos, Mauro C. [2]
Total Authors: 10
Affiliation:
[1] Inst Fed Educ Ciencia & Tecnol Maranhao IFMA, Campus Acailandia, R Projetada S-N, BR-65930000 Acailandia, MA - Brazil
[2] Univ Fed ABC UFABC, CCNH, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil
[3] Univ Fed ABC UFABC, Ctr Engn Modelagem & Ciencias Socials Aplicadas C, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil
[4] Univ Sao Paulo, IQSC, Caixa Postal 780, BR-13566590 Sao Carlos, SP - Brazil
[5] UNESP, Inst Quim, Inst Natl Tecnol Altenat Deteccao Avaliacao Toxic, BR-14800900 Araraquara, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Chemosphere; v. 239, JAN 2020.
Web of Science Citations: 0
Abstract

The objectives of this study were to determine the viability of removing Orange II (OII) dye by simulated solar photoelectro-Fenton (SSPEF) and to evaluate the stability of a WO2.72/Vulcan XC72 gas diffusion electrode (GDE) and thus determine its best operating parameters. The GDE cathode was combined with a BDD anode for decolorization and mineralization of 350 mL of 0.26 mM OII by anodic oxidation with electrogenerated H2O2 (AO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF) at 100, 150 and 200 mA cm(-2) and SSPEF at 150 mA cm(-2). The GDE showed successful operation for electrogeneration, good reproducibility and low leaching of W. Decolorization and OII decay were directly proportional to the current density (j). AO-H2O2 had a reduced performance that was only half of the SSPEF, PEF and EF treatments. The mineralization efficiency was in the following order: AO-H2O2 < EF < PEF approximate to SSPEF. This showed that the GDE, BDD anode and light radiation combination was advantageous and indicated that the SSPEF process is promising with both a lower cost than using UV lamps and simulating solar photoelectro-Fenton process. The PEF process with the lowest j (100 mA cm(-2)) showed the best performance-mineralization current efficiency. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 16/00819-8 - Controlled Synthesis of Nanomaterials based on Pd and Pt: Electrocatalytic Activity and Stability
Grantee:Luanna Silveira Parreira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
Grantee:Maria Valnice Boldrin
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/26288-1 - Hybrid electrocatalysts based on Pd, Pt and Sn nanoparticles, and on ceria nanorods for application in fuel cells
Grantee:Victor dos Santos Pinheiro
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/10314-8 - Nanostructures for Phenol, Ciprofloxacin and 17±-ethinylestradiol Degradation
Grantee:Mauro Coelho dos Santos
Support type: Regular Research Grants
FAPESP's process: 17/22976-0 - Development of palladium and niobium nanoelectrocatalysts for alkaline direct ethanol fuel cells
Grantee:Felipe de Moura Souza
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
Grantee:Marcos Roberto de Vasconcelos Lanza
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/21846-6 - Nanostructures for environmental remediation and power generation from renewable sources
Grantee:Mauro Coelho dos Santos
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants