Decentralized and cost-effective colorimetry analysis by smartphone-based method digital image for monitoring electrochemical elimination of dye from water matrices

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Rio Grande do Norte-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCardozo, Jussara C.-
Autor(es): dc.creatorBarbosa Segundo, Inalmar D.-
Autor(es): dc.creatorde Medeiros Leandro, Maria Eduarda-
Autor(es): dc.creatorGondim, Amanda D.-
Autor(es): dc.creatorCavalcanti, Livia N.-
Autor(es): dc.creatordos Santos, Elisama V.-
Autor(es): dc.creatorMartínez-Huitle, Carlos A.-
Data de aceite: dc.date.accessioned2025-08-21T15:45:36Z-
Data de disponibilização: dc.date.available2025-08-21T15:45:36Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10008-024-06146-4-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302429-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302429-
Descrição: dc.descriptionThe present research provides a newly developed method that aims at versatile, rapid, portable, and low-cost instrumental protocol for colorimetric analysis of waters, polluted by dyes, through the use of a smartphone and app that detects and represents the RGB (red, green, and blue) color model. The calibration of the method is based on RGB values obtained by capturing images of colored solutions with known concentrations. The method was spectrophotometrically validated by analyzing the same samples, reaching more than 95% of accuracy. The utilization of this smartphone-based method for colorimetric analysis was proposed to follow, for the first time, the electrochemical treatment of different water matrices (400 mL of synthetic and real) with substantial organic and salts content (50 mg L−1 of methylene blue in 0.1 mol L−1 Na2SO4) using boron-doped diamond (BDD) anode by applying current densities (j) of 15, 30, and 60 mA cm−2. Discoloration results (which were achieved with this novel smart water security solution) clearly showed that significant removal efficiencies were achieved in 2 h, depending on the j, when synthetic and real effluents were used. A key role was played by the sulfates in solution which were electroconverted to persulfates via reaction with •OH produced at BDD surface, enhancing the oxidation power of the electrochemical treatment. Then, the procedure presented here obtained a high level of confidence representing great support for scientific laboratories as an alternative that can replace the use of expensive spectrophotometers.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionRenewable Energies and Environmental Sustainability Research Group Institute of Chemistry Federal University of Rio Grande do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, CEP 59078-970, Rio Grande do Norte-
Descrição: dc.descriptionSchool of Science and Technology Federal University of Rio Grande do Norte, Av. Senador Salgado Filho 3000, Lagoa Nova, Rio Grande do Norte-
Descrição: dc.descriptionNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT–DATREM) Institute of Chemistry UNESP, P.O. Box 355, São Paulo-
Descrição: dc.descriptionNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT–DATREM) Institute of Chemistry UNESP, P.O. Box 355, São Paulo-
Descrição: dc.descriptionCNPq: 150933/2021-5-
Descrição: dc.descriptionFAPESP: 2014/50945-4-
Descrição: dc.descriptionFAPESP: 2019/13113-4-
Descrição: dc.descriptionCNPq: 306323/2018-4-
Descrição: dc.descriptionCNPq: 312595/2019-0-
Descrição: dc.descriptionCNPq: 315879/2021-1-
Descrição: dc.descriptionCNPq: 351605/2022-3-
Descrição: dc.descriptionCNPq: 408110/2022-8-
Descrição: dc.descriptionCNPq: 409196/2022-3-
Descrição: dc.descriptionCNPq: 439344/2018-2-
Formato: dc.format873-885-
Idioma: dc.languageen-
Relação: dc.relationJournal of Solid State Electrochemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDigital image colorimetry-
Palavras-chave: dc.subjectDigitalization-
Palavras-chave: dc.subjectRGB image processing-
Palavras-chave: dc.subjectSmartphone-based technology-
Título: dc.titleDecentralized and cost-effective colorimetry analysis by smartphone-based method digital image for monitoring electrochemical elimination of dye from water matrices-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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