Search Results - "Borges, M.E"

Photocatalysis with solar energy: Sunlight-responsive photocatalyst based on TiO2 loaded on a natural material for wastewater treatment by Borges, M.E., Sierra, M., Cuevas, E., García, R.D., Esparza, P.

“…•High rate of photocatalysis under solar light.•Photocatalysis combining economical and sustainable components including TiO2, black volcanic ashes and solar…”
Get full text

Solar degradation of contaminants in water: TiO2 solar photocatalysis assisted by up-conversion luminescent materials by Borges, M.E., Sierra, M., Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Esparza, P.

“…Solar energy, along with other renewable resources, could potentially solve environmental problems, as demonstrated by recent developments in the use of solar…”
Get full text

Natural dyes extraction from cochineal (Dactylopius coccus). New extraction methods by Borges, M.E., Tejera, R.L., Díaz, L., Esparza, P., Ibáñez, E.

“…► New solvents have been studied for carminic acid extraction. ► New extraction techniques, pressurised liquid extraction and supercritical fluid extraction,…”
Get full text

Recent developments on heterogeneous catalysts for biodiesel production by oil esterification and transesterification reactions: A review by Borges, M.E., Díaz, L.

“…Heterogeneous catalysis is widely applied in industry due to important advantages it offers to chemical processes such as improved selectivity and easy…”
Get full text

TiO2 modifications by hydrothermal treatment and doping to improve its photocatalytic behaviour under visible light by Esparza, P., Hernández, T., Borges, M.E., Álvarez-Galván, M.C., Ruiz-Morales, J.C., Fierro, J.L.G.

“…Photocatalysts UV–vis light absorption. [Display omitted] ► TiO2 was modified as a good photocatalysts for advanced oxidation treatment. ► Nanostructures of…”
Get full text

Estimation of the content of fatty acid methyl esters (FAME) in biodiesel samples from dynamic viscosity measurements by Borges, M.E., Díaz, L., Gavín, J., Brito, A.

“…In order for biodiesel to be commercialized as pure biofuel or blending stock for diesel fuels, it must meet a set of requirements defined in standard…”
Get full text

Improvement of biodiesel production through microstructural engineering of a heterogeneous catalyst by Borges, M.E., Ruiz-Morales, J.C., Díaz, L.

“…Biodiesel can be produced from ecological friendly processes using edible or waste vegetable oil. Actual production processes can be improved by using…”
Get full text

“There is plenty of energy at the bottom”: A spectral conversion approach for upconversion-powered water-splitting PEC cell by Méndez-Ramos, J., Borges, M.E., Torres-García, S., Medina-Alayón, M., Acosta-Mora, P., del-Castillo, J., Menéndez-Velázquez, A., García-Delgado, A.B., Mullins, C.B., Esparza, P.

“…An avant-garde step towards the use of the long infrared tail of the incident solar radiation with untapped and crucial applications in photocatalysis and…”
Get full text

Sequential up-conversion and down-shifting luminescence with a tandem luminescent solar concentrator based on rare-earth and organic materials by García-Delgado, A.B., Menéndez-Velázquez, A., Méndez-Ramos, J., Torres-García, S., Medina-Alayón, M., Acosta-Mora, P., del-Castillo, J., Borges, M.E., Esparza, P.

“…Conventional photovoltaic systems frequently struggle to fully exploit the vast solar spectrum, falling short in efficiently converting the entire potential of…”
Get full text

Towards a luminescent solar concentrator with ultra-broadband absorption and spectral conversion for optimizing photovoltaic solar cell response: “The photonic cannon shot” by Menéndez-Velázquez, A., Torres-García, S., García-Delgado, A.B., Morales, D., Medina-Alayón, M., Acosta-Mora, P., del-Castillo, J., Esparza, P., Borges, M.E., Yanes, A.C., Méndez-Ramos, J.

“…Solar energy harvesting is largely limited by the spectral sensitivity of the employed photovoltaic solar cell, since typically the full potential of each…”
Get full text

Zeolite Y as a Heterogeneous Catalyst in Biodiesel Fuel Production from Used Vegetable Oil by Brito, A, Borges, M. E, Otero, N

“…Complete recycling of waste edible oil has recently attracted considerable attention as a worldwide social problem. Production of a biodiesel fuel from used…”
Get full text

Solar photocatalysis at semi-pilot scale: wastewater decontamination in a packed-bed photocatalytic reactor system with a visible-solar-light-driven photocatalyst by Borges, M. E., Sierra, M., Esparza, P.

“…Particles of natural volcanic ashes as photocatalyst configured in a packed-bed photocatalytic reactor were studied for the photodegradation of wastewater…”
Get full text

Low-Quality Vegetable Oils as Feedstock for Biodiesel Production Using K‑Pumice as Solid Catalyst. Tolerance of Water and Free Fatty Acids Contents by Díaz, L, Borges, M. E

“…Waste oils are a promising alternative feedstock for biodiesel production due to the decrease of the industrial production costs. However, feedstock with high…”
Get full text

High performance heterogeneous catalyst for biodiesel production from vegetal and waste oil at low temperature by Borges, M.E., Díaz, L., Alvarez-Galván, M.C., Brito, A.

“…[Display omitted] ▶ Heterogeneous catalytic elimination of environmental pollutants (waste oil) especially applied to biodiesel industrial processes. ▶…”
Get full text

Rare-earth doped colour tuneable up-conversion ZBLAN phosphor for enhancing photocatalysis by Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Sierra, M., Redondas, A., Ruggiero, E., Salassa, L., Borges, M.E., Esparza, P.

“…•Successful synthesis of heavy rare-earth Yb3+–Er3+–Tm3+ doped ZBLAN fluoride glass.•Colour tuneable up-conversion emission by changing pump power density is…”
Get full text

Use of 3D printing for biofuel production: efficient catalyst for sustainable biodiesel production from wastes by Borges, M. E., Hernández, L., Ruiz-Morales, J. C., Martín-Zarza, P. F., Fierro, J. L. G., Esparza, P.

“…This work deals with the sustainable biodiesel production from low-cost renewable feedstock (waste and non-edible oils) using a heterogeneous catalyst…”
Get full text

Photodegradation of dye pollutants using new nanostructured titania supported on volcanic ashes by Esparza, P., Borges, M.E., Díaz, L., Alvarez-Galván, M.C., Fierro, J.L.G.

“…[Display omitted] ▶ Volcanic ashes can be used as photocatalysts for the treatment of polluted water. ▶ TiO 2 supported nanostructured material displayed good…”
Get full text

Heavy rare-earth-doped ZBLAN glasses for UV–blue up-conversion and white light generation by Méndez-Ramos, J., Acosta-Mora, P., Ruiz-Morales, J.C., Hernández, T., Borges, M.E., Esparza, P.

“…Noticeable UV–vis up-conversion luminescence of Er3+ and Tm3+ ions sensitised by Yb3+ ions in ZrF4–BaF2–LaF3–AlF3–NaF (ZBLAN) fluoride glasses have been…”
Get full text

Photocatalysis as a potential tertiary treatment of urban wastewater: new photocatalytic materials by Borges, M. E., Hernández, T., Esparza, P.

“…Heterogeneous UV-photocatalytic process has been studied as tertiary treatment of real municipal wastewater. Wastewater photocatalytic treatment was carried…”
Get full text

Studies in a Fixed-Bed Photocatalytic Reactor System Using Natural Materials for Degradation of a Dye Contaminant in Water by Esparza, P., Borges, M. E., Díaz, L.

“…A fixed-bed photocatalytic reactor equipped with a cylindrical parabolic light concentrator was studied to remove organic dyes from water using natural…”
Get full text