Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Roberto Leyva"'
Autor:
Brenda Azharel Jiménez-López, Raquel Martín-Sampedro, Roberto Leyva-Ramos, Margarita Darder, Pilar Aranda
Publikováno v:
Sustainable Chemistry for the Environment, Vol 6, Iss , Pp 100096- (2024)
Innovative bionanocomposite foams based on precipitated Kraft lignin (Lig) and Kraft black liquor (BL) loaded with sepiolite (Sep) were prepared. BL/Sep bionanocomposites were synthesized by emulsion templating and Lig/Sep bionanocomposites were prep
Externí odkaz:
https://doaj.org/article/c73a232890ec42a2b7d84d45f4f1335f
Autor:
Socorro Oros-Ruiz, Hiram Joazet Ojeda-Galván, Mildred Quintana, Roberto Leyva-Ramos, Adriana Isabel Moral-Rodríguez, Esmeralda Mendoza-Mendoza
Publikováno v:
Frontiers in Nanotechnology, Vol 6 (2024)
BiOI and (3 wt%)GO/BiOI visible-light-driven photocatalysts were obtained by a one-pot solvothermal method and successfully applied to the degradation of single and binary dye solutions of rhodamine B (RhB) and methylene blue (MB) and H2 production u
Externí odkaz:
https://doaj.org/article/6f5dc5bd109c4b288a40c0eff2260c64
Autor:
Damarys Haydee Carrales-Alvarado, Brenda Azharel Jiménez-López, Roberto Leyva-Ramos, Nahum Andrés Medellín-Castillo, Esmeralda Mendoza-Mendoza, Carolina Vázquez-Mendoza, Diana Elizabeth Villela-Martínez
Publikováno v:
Sustainable Environment Research, Vol 33, Iss 1, Pp 1-12 (2023)
Abstract High fluoride concentrations in groundwater have attracted great concern worldwide because many people are afflicted by fluorosis due to water consumption. In this work, the fluoride adsorption from water onto bone char (BC) modified with ir
Externí odkaz:
https://doaj.org/article/19a2f17507e3403e9f6021e3d0b7ecbd
Autor:
Nahum A. Medellin-Castillo, Erika Padilla-Ortega, María C. Regules-Martínez, Roberto Leyva-Ramos, Raúl Ocampo-Pérez, Candy Carranza-Alvarez
Publikováno v:
Sustainable Environment Research, Vol 27, Iss 2, Pp 61-69 (2017)
In this work, the single and binary adsorption of Cd(II) and Pb(II) onto industrial chili seeds (CS) (Capsicum annuum) from aqueous solutions was investigated as a possible low-cost biosorbent for the removal of toxic heavy metals from aqueous soluti
Externí odkaz:
https://doaj.org/article/721852542dad496887f3ea69638d25ba
Autor:
Jacob J. Salazar-Rabago, Roberto Leyva-Ramos, Jose Rivera-Utrilla, Raul Ocampo-Perez, Felipe J. Cerino-Cordova
Publikováno v:
Sustainable Environment Research, Vol 27, Iss 1, Pp 32-40 (2017)
In this work, the biosorption mechanism of the cationic dye Methylene Blue (MB) on natural White Pine sawdust (NS) (Pinus durangensis) was investigated. Likewise, the surface charge distribution of NS was determined, and its point of zero charge was
Externí odkaz:
https://doaj.org/article/adc0fbb235804e24b2af4ab6ef9e5b53
Autor:
Nuris Begué Dalmau, Elio Goide Linares, Norla Frías Chang, Elsy Domínguez Duany, Roberto Leyva Frías
Publikováno v:
Medisan, Vol 19, Iss 1, Pp 4-9 (2015)
Se realizó un estudio descriptivo y transversal de 43 pacientes menores de 19 años, con infecciones asociadas a la atención sanitaria, ingresados en el Hospital General Docente "Juan B. Viñas González" de Palma Soriano, en la provincia de Santia
Externí odkaz:
https://doaj.org/article/2c2b8697bab2420797f3f522027ac71c
Autor:
Jose Portillo-Portillo, Roberto Leyva, Victor Sanchez, Gabriel Sanchez-Perez, Hector Perez-Meana, Jesus Olivares-Mercado, Karina Toscano-Medina, Mariko Nakano-Miyatake
Publikováno v:
Sensors, Vol 17, Iss 1, p 6 (2016)
This paper proposes a view-invariant gait recognition framework that employs a unique view invariant model that profits from the dimensionality reduction provided by Direct Linear Discriminant Analysis (DLDA). The framework, which employs gait energy
Externí odkaz:
https://doaj.org/article/a903fae1b3ed4208909540b810d1df6d
Publikováno v:
Adsorption Science & Technology, Vol 31 (2013)
The adsorption capacity of diatomite towards heavy metals as well as the adsorption mechanism was investigated in the present study. The chemical and X-ray diffraction analyses revealed that the diatomite was mainly composed of SiO 2 (95.91%) as cris
Externí odkaz:
https://doaj.org/article/894a382eed2d4e42a18d453bbcad1796
Publikováno v:
Adsorption Science & Technology, Vol 29 (2011)
The equilibrium and kinetic adsorption of Methylene Blue (MB), Methyl Blue (MTB) and 1-naphthalene sulphonic acid (NSA) onto organobentonite was investigated. The effect of pH on the adsorption capacity was studied by determining the adsorption isoth
Externí odkaz:
https://doaj.org/article/2b6f086715224097bcbfa1ade12ee36e
Autor:
Araceli Jacobo-Azuara, Roberto Leyva-Ramos, Erika Padilla-Ortega, Antonio Aragón-Piña, Rosa Maria Guerrero-Coronado, Jovita Mendoza-Barron
Publikováno v:
Adsorption Science & Technology, Vol 24 (2006)
An organobentonite was prepared by adsorbing the cationic surfactant hexadecyltrimethylammonium bromide (HDTMA) onto the surface of a calcium bentonite. The adsorption capacity of the organobentonite towards 2,4-dichlorophenoxyacetic acid (2,4-D), ph
Externí odkaz:
https://doaj.org/article/0861f0a750614f31ae10631f096bcf6e