Publications by authors named "Leticia Carro"

Molecular simulations using the Grand Canonical Monte Carlo (GCMC) method have been performed in order to obtain physical insights on how the interaction between ibuprofen (IBP) and activated carbons (ACs) in aqueous mixtures affects IBP removal from water by ACs. A nanoporous carbon model based on units of polyaromatic molecules with different number of rings, defects and polar-oxygenated sites is described. Individual effects of factors such as porous features and chemical heterogeneities in the adsorbents are investigated and quantified.

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Article Synopsis
  • Biosorption is an efficient method for removing mercury, with studies focusing on the sorption capabilities of both untreated and acid-treated Sargassum muticum.
  • The pH, initial mercury concentration, and contact time were key factors determining the sorption process, while changes in mercury speciation due to electrolytes, especially chloride salts, significantly impacted the effectiveness of mercury removal.
  • Ongoing experiments revealed that a reduction process occurs during mercury removal, which was confirmed by scanning electron microscopy showing deposits of mercury(I) and metallic mercury on the surface of the materials.
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Physico-chemical factors affecting mercury elimination from solution using fern as sorbent have been analysed. It was demonstrated that interaction of mercury with this biomass follows two processes, adsorption by the functional groups in the biopolymers of the cell wall and reduction by easily oxidized compounds of the biomass. Batch experiments have been done to analyse the effect of pH, ionic strength of the media or competition with other metals.

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