Titre:	Evaluation of the toxicity reduction of an ionic liquid solutionelectrochemically treated using BDD films with different sp3/sp2ratios
Auteur(s):	Marcionilio, Suzana Maria Loures de Oliveira Araújo, Danyelle M. Nascimento, Thaise de V. Martínez-Huitlec, Carlos A. Linares León, José Joaquín
Assunto::	Diamante dopado Boro Eletroquímica Toxicidade Oxidação
Date de publication:	15-jui-2020
Editeur:	lsevier B.V.
Référence bibliographique:	MARCIONILIO, Suzana M. L. de O. et al. Evaluation of the toxicity reduction of an ionic liquid solution electrochemically treated using BDD films with different sp3/sp2 ratios. Electrochemistry Communications, v. 118, 106792, set. 2020. DOI: https://doi.org/10.1016/j.elecom.2020.106792. Disponível em: https://www.sciencedirect.com/science/article/pii/S1388248120301430
Abstract:	It has previously been established that the sp3/sp2 ratio influences the type of degradation (direct or indirect) as well as the production of oxidants at boron-doped diamond (BDD) films. However, there are no published studies on the effects achieved (in terms of degradation performance) when an ionic liquid is treated nor any evaluations of effluent toxicity after treatment. For this reason, this study investigated the influence of the sp3/sp2 ratio of BDD anodes on the degradation of the ionic liquid 1-butyl-3-methylimidazolium chloride. The presence of a large fraction of C-sp3 favored more efficient mineralization (significant at high current densities); however, phytotoxic analyses revealed a more toxic final effluent. Depending on the experimental conditions and the sp3/sp2 ratio, smaller amounts of undesirable chlorate and perchlorate anions as well as different oxidation by-products were detected, consequently affecting the toxicity level of the effluent. The results are discussed and compared with the existing literature.
metadata.dc.description.unidade:	Instituto de Química (IQ)
Licença::	This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
DOI:	https://doi.org/10.1016/j.elecom.2020.106792
Collection(s) :	Artigos publicados em periódicos e afins

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