Browsing Publicaciones Científicas Ciencias Ambientales by Title
Now showing items 403-422 of 445
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Studies of adsorption of heavy metals onto spent coffee ground: equilibrium, regeneration, and dynamic performance in a fixed-bed column
(2016)"Equilibrium and dynamic adsorption of heavy metals onto spent coffee ground (SCG) were studied. The equilibrium adsorption of Cd2+, Cu2+, and Pb2+ in a batch system was modeled by an ion-exchange model (IEM) based on an ... -
Study of nano-ZnO/Graphene-based photocatalyst to degrade Triclosan under UV and visible light
(21/02/2020)"In recent years, a growing problem with water treatment has arisen due to the presence of endocrine-disrupting compounds (EDC), which persist in surface, waste, and drinking water. A significant example of EDC is triclosan ... -
Study of the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE
(2016)"A photodegradable Low Density Polyethylene-Titanium dioxide (LDPE-TiO2) nanocomposite film was prepared, and its evaluation considers the partial modification of the surface of the particle using Hexadecyltrimethoxysilane ... -
Sulfate reduction at acidic conditions: from the sediment to the reactor
(2019-09)"Acid mine drainage is water polluted with heavy metals, sulfate, and acid as the result of some mining activities. Due its physicochemical characteristics, acid mine drainage is toxic, recalcitrant and difficult to treat. ... -
Sustancias húmicas como mediadores redox durante la oxidación anaerobia de metano y la reducción de óxido nitroso por la microbiota de un sedimento de un humedal costero
(2019-01-31)"Los humedales son la fuente natural principal de emisiones de metano (CH4), el cual resulta del equilibrio entre procesos microbianos como la metanogénesis y la metanotrofia, misma que bajo condiciones anaerobias, puede ... -
Synthesis and adsorption performance of a biochar improved with carbon nanostructures for fast gasoline emissions removal
(2022-05-30)"Considering the environmental and economic importance of recovery and reuse of gasoline emissions, this thesis explored the adsorption of volatile organic compounds (VOCs) from gasoline on a macroporous biochar/carbon ... -
Synthesis and photophysical properties of ferrocene-oligo(benzoateethynylene)- fulleropyrrolidines dyads and triads. Implications in photovoltaic cells
(2018)"A series of fulleropyrrolidines-conjugated bridge-ferrocene or triazene oligomers were selectively synthesized by the Sonogashira reaction by applying the step-by-step approach. The bridge is constituted by 1, 2 and 3 ... -
Synthesis of Bamboo-like Multiwall Carbon Nanotube–Poly(Acrylic Acid-co-Itaconic Acid)/NaOH Composite Hydrogel and its Potential Application for Electrochemical Detection of Cadmium(II)
(MDPI, 2020)"A poly(acrylic acid-co-itaconic acid) (PAA-co-IA)/NaOH hydrogel containing bamboo-type multiwall carbon nanotubes (B-MWCNTs) doped with nitrogen (PAA-co-IA/NaOH/B-MWCNTs) was synthesized and characterized by SEM, absorption ... -
Synthesis of keratine, silver, and flavonols nanocomposites to inhibit oxidative stress in pancreatic beta-cell (INS-1) and reduce intracellular reactive oxygen species production
(Elsevier, 2021)"Flavonols (FLA) from Vaccinium macrocarpon (V. macrocarpon) were identified using high-performance liquid chromatography coupled with mass spectrometry detection. Nanoparticles were prepared using highly crosslinked keratin ... -
Synthesis of reduced graphene oxide (rGO) films onto carbon steel by cathodic electrophoretic deposition: anticorrosive coating
(Elsevier, 2017-10)"The use of graphene based materials as anticorrosive coatings for the protection of metals is still a controversial subject worthy of debate. The electrophoretic deposition (EPD) is one of the most used techniques to ... -
Synthesis, characterization and photocatalytic performance of zinc oxide structured nanocomposites for the treatment of endocrine disrupting compounds in water
(2014-08)"El ZnO es un material no tóxico de bajo costo con un interesante potencial fotocatalítico en la degradación de contaminantes en medio acuoso. Sin embargo, su aplicación se encuentra limitada por su baja eficiencia, ... -
Synthesis, structural characterization and Cu(II) adsorption behavior of manganite (γ-MnOOH) nanorods
(Royal Society of Chemistry, 2020)"New alternatives for the removal of transition metal ions that present an environmental risk are required. The chemical adsorption of these ions on surfaces with chemisorbent properties represents a promising area of ... -
Tailoring partially reduced graphene oxide as redox mediator for enhanced biotransformation of iopromide under methanogenic and sulfate-reducing conditions
(Elsevier B.V., 2017-01)"This work reports the first successful application of graphene oxide (GO) and partially reduced GO (rGO) as redox mediator (RM) to increase the biotransformation of the recalcitrant iodinated contrast medium, iopromide ... -
Tasas de establecimiento de plántulas de encinos (Quercus spp.) ante diferentes escenarios de cambio climático en ambientes templados
(2015-07)"Climate change is a phenomenon that threatens the distribution and maintenance of plant species and, in recent years, several studies have been conducted to predict the future atmospheric conditions. Because forest ... -
Technical note: application of geophysical tools for tree root studies in forest ecosystems in complex soils
(2017-11)"While semiarid forests frequently colonize rocky substrates, knowledge is scarce on how roots garner resources in these extreme habitats. The Sierra San Miguelito Volcanic Complex in central Mexico exhibits shallow soils ... -
Temporal analysis of butterfly diversity in a succession gradient in a fragmented tropical landscape of Mexico
(Elsevier, 2020)"We analyze changes in the diversity of butterflies under a scheme of secondary succession in a fragmented landscape of the Huasteca of Hidalgo, Mexico over two seasons (rainy and dry) and four successional stages (cattle ... -
Temporal and longitudinal biofilm matrix analysis of a biofilter treating ethyl acetate during ozonation
(Springer, 2018)"The present paper focuses on the biofilm composition and pattern of biomass in gas biofiltration of ethyl acetate working under continuous addition of ozone (O3). Two biofilters were operated for 230 days, one under ... -
Temporal and spatial variation of waterbirds at Sayula Lagoon, Jalisco, Mexico: a five-year winter season study
(Museu de Ciencies Naturals, 2018)"Wetlands in central Mexico are important habitats for assemblages of migratory and resident birds. To study variation in richness and abundance of waterbirds, we conducted monthly observations in 30 permanent plots ... -
The andean forest soil seed bank in two successional stages in northeastern Colombia
(2016-12)"Background: Soil seed banks play an important role in post-disturbance regeneration and succession of species from different successional stages. Questions: 1) What is the most effective method for determining the ... -
The contribution of dew and fog in the water balance of a continental semiarid grassland ecosystem
(2020-01)"In arid and semiarid regions, water scarcity plays an important role in determining the plant distribution, density, cover and productivity; it also controls many other biological processes. In these regions, different ...