Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Djalma R. da Silva"'
Autor:
Jussara Câmara Cardozo, Inalmar D. Barbosa Segundo, Edney R. V. P. Galvão, Djalma R. da Silva, Elisama V. dos Santos, Carlos A. Martínez-Huitle
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract This study is focused on a proposal of a smartphone imaging-based quantification for providing a simple and rapid method for the analysis of chemical oxygen demand (COD) and color throughout the use of the HSV and/or RGB model in digital dev
Externí odkaz:
https://doaj.org/article/6f1e570144444d46841a2282d7989c10
Autor:
Maycon D. de Lima, Ana S. Fajardo, Elaine C. de M. Santos, Aline M. Sales-Solano, Djalma R. da Silva, Carlos A. Martínez-Huitle
Publikováno v:
Química Nova, Vol 44, Iss 5, Pp 561-569 (2021)
Externí odkaz:
https://doaj.org/article/d7184656e5864067996f892b3cdf30ca
Autor:
Álvaro G. P. Galvão, Letícia G. A. Costa, Emily C. T. de A. Costa, Djalma R. da Silva, Carlos A. Martínez-Huitle, Elisama Vieira dos Santos
Publikováno v:
Catalysts, Vol 12, Iss 12, p 1591 (2022)
This paper proposes an eco-efficient treatment technology for removing phenanthrene (PHE) from kaolinite soil, incorporating a permeable reactive barrier (PRB) in an electrokinetic (EK) remediation system, which was made by modifying the granulated c
Externí odkaz:
https://doaj.org/article/8a168b3c2f11414797bd878b3cada492
Autor:
Jussara Câmara Cardozo, Djalma R. da Silva, Carlos A. Martínez-Huitle, Marco A. Quiroz, Elisama V. Dos Santos
Publikováno v:
Materials, Vol 15, Iss 21, p 7445 (2022)
In this study, for the first time, the production of green hydrogen gas (H2) in the cathodic compartment, in concomitance with the electrochemical oxidation (EO) of an aqueous solution containing Calcon dye at the anodic compartment, was studied in a
Externí odkaz:
https://doaj.org/article/c3a3c5253c4d49759b7e80cd0d3676f8
Autor:
Breno G. P. Bezerra, Lindiane Bieseki, Mariele I. S. de Mello, Djalma R. da Silva, Cristiane B. Rodella, Sibele Pergher
Publikováno v:
Materials, Vol 14, Iss 9, p 2102 (2021)
In this memory effect study, hydrotalcite-type compounds in the lamellar double hydroxide-like (LDH)/zeolite A composite material were analyzed using X-Ray Diffration XRD) in situ experiments. Three samples were analyzed: Al,Mg-LDH, Al,Mg-LDH/ZA comp
Externí odkaz:
https://doaj.org/article/7cc643a0145a4409a11681bdd71726ae
Autor:
Mayra K. S. Monteiro, Djalma R. Da Silva, Marco A. Quiroz, Vítor J. P. Vilar, Carlos A. Martínez-Huitle, Elisama V. Dos Santos
Publikováno v:
Materials, Vol 14, Iss 1, p 37 (2020)
This study aims to investigate the applicability of a hybrid electrochemical sensor composed of cork and graphite (Gr) for detecting caffeine in aqueous solutions. Raw cork (RAC) and regranulated cork (RGC, obtained by thermal treatment of RAC with s
Externí odkaz:
https://doaj.org/article/9d13a7eb53ef4b138926d1981e88b904
Autor:
Elaine Cristina M. de Moura, Adna Dornelles N. Souza, Cátia Guaraciara F. T. Rossi, Djalma R. da Silva, Maria Aparecida M. Maciel, Aurea Echevarria, Myrtes S. S. Bellieny
Publikováno v:
Química Nova, Vol 36, Iss 1, Pp 59-62 (2013)
In this paper, thiosemicarbazones 4-N-cinnamoyl-thiosemicarbazone (CTSC), 4-N-(2'-methoxycinnamoyl)-thiosemicarbazone (MCTSC), and 4-N-(4'-hydroxy-3'-methoxybenzoyl)- thiosemicarbazone (HMBTSC) were solubilized in an oil-in-water (O/W) microemulsion
Externí odkaz:
https://doaj.org/article/6e02c545ba5d47d8a39dd31004fcf8d6
Autor:
Maria do S. B. da Silva, Jhudson G. L. de Araujo, Júlia C. C. V. Bento, Amanda M. de Azevedo, Carlos R. O. Souto, Aécia S. D. dos Anjos, Aruzza M. M. de Araújo, Djalma R. da Silva, Fabrício G. Menezes, Amanda D. Gondim, Lívia N. Cavalcanti
Publikováno v:
RSC Advances. 12:27889-27894
An operationally simple and highly selective method for the decarboxylation of fatty acids under remarkably mild conditions is described herein. The activation of the aliphatic carboxylic acids by esterification with
Autor:
Karla C. F. Araújo, Karyn N. O. Silva, Mayra K. S. Monteiro, Djalma R. da Silva, Marco A. Quiroz, Elisama V. dos Santos, Carlos A. Martínez-Huitle
Publikováno v:
Journal of The Electrochemical Society. 169:033506
To date, a wide range of synthetic and real effluents have been treated using in situ electrochemically driven BDD-SO4 2−/SO4 ·−/S2O8 2− systems to eliminate persistent organic pollutants and microorganisms. Although reactive sulfate-based spe
Autor:
José Eudes L, Santos, Djalma R, da Silva, Carlos A, Martínez-Huitle, Elisama Vieira, Dos Santos, Marco A, Quiroz
Publikováno v:
RSC advances. 10(62)
In this work, the electrochemical oxidation of the Methyl Red (MR) dye and the herbicide sodium 2,4-dichlorophenoxyacetate (2,4-DNa) was investigated on Si/BDD, Pb/PbO