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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.)

Theoretical and experimental study of the influence of cation-Eriochrome complexes on the BDD anodic oxidation of Eriochrome Black T solutions

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Author(s):
Lopes da Silva, Amison Rick [1] ; dos Santos, Alexsandro Jhones [1] ; dos Santos, Elisama Vieira [1] ; da Silva, Djalma Ribeiro [1] ; Martinez-Huitle, Carlos A. [1]
Total Authors: 5
Affiliation:
[1] Univ Fed Rio Grande do Norte, Inst Chem, Campus Univ 3000, BR-59078970 Natal, RN - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Electrochemistry Communications; v. 112, MAR 2020.
Web of Science Citations: 0
Abstract

It has previously been established during the elimination of Eriochrome Black T (EBT) that water hardness is an important condition that limits the efficacy of electrochemical treatments of azo dye effluent by the electrophilic attack of (OH)-O-center dot radicals, due to the possible formation of calcium and magnesium complexes. This outcome was observed when using the Electro-Fenton (EF) approach, where the use of iron as a catalyst is mandatory; however, the synergistic or antagonistic effects of iron were not considered. For this reason, this communication presents important experimental and theoretical insights (using Density Functional Theory (DFT) and Quantum Theory of Atoms in Molecules (QTAIM)) into the influence of different ions (Ca2+, Mg2+ or Fe2+) on the degradation efficiency of EBT solution using anodic oxidation (AO) with boron-doped diamond (BDD) electrodes. (AU)

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 Opportunities: Research Projects - Thematic Grants