A5019081475- Adsorption and biosorption for pollutant removal
- Electrochemical Analysis and Applications
- Analytical chemistry methods development
- Extraction and Separation Processes
- Radioactive element chemistry and processing
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Heavy metals in environment
- Ionic liquids properties and applications
- Microbial bioremediation and biosurfactants
- Recycling and utilization of industrial and municipal waste in materials production
- Toxic Organic Pollutants Impact
- Environmental remediation with nanomaterials
- Chromium effects and bioremediation
- Arsenic contamination and mitigation
- Dyeing and Modifying Textile Fibers
- Advanced Chemical Sensor Technologies
- Chemical Synthesis and Characterization
- Membrane-based Ion Separation Techniques
- Diamond and Carbon-based Materials Research
- Municipal Solid Waste Management
- Nanomaterials for catalytic reactions
- Coordination Chemistry and Organometallics
- Marine Biology and Environmental Chemistry
- Analytical Chemistry and Chromatography
Universitat Autònoma de Barcelona
2011-2024
Centre de Recerca Matemàtica
2006-2013
Abstract Three different types of feedstocks and their biochars were used to remove Cr(III), Cd(II), Cu(II) Pb(II) ions from a mixture multiple heavy metals. The effect the initial concentration metals in solution has been analysed, kinetics modelling comparison adsorption capacity such materials have performed elucidate possible mechanisms. results show that is dependent on type feedstock pyrolysis conditions. biomass ranked as follows: FO (from sewage sludge)>> LO > ZO (both...
Water pollution is an environmental problem that affects the ecosystem and living beings. Adsorption one of best technologies for removal heavy metals. Since waste recovery basis Circular Economy, agro-industrial emerging as low-cost adsorbents these pollutants from wastewater. Residues pine sawdust, sunflower seed hulls corn residues mix were evaluated synthetic aqueous solutions Ni(II), Zn(II) Cd(II). These characterized to determine their structure composition, understand adsorption...
Four common waste keratin biofibers (human hair, dog chicken feathers, and degreased wool) have been used as biosorbents for the removal of heavy metal ions from aqueous solutions. Different parameters biosorption processes were optimized in batch systems. For multiple-metal systems, consisting a mixture eight [Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pb(II)], total increased order: wool > feathers human hair hair. From kinetic models tested, pseudo-second-order model...
This study presents the use of modified coffee husk and lignin as sorbents in heavy metal ions sorption Pb(II), Cd(II), Cr(III), Cu(II) an aqueous solution. The modification was carried out by impregnation method, using silver nitrate (AgNO3) sodium borohydride (NaBH4) a nanoparticles’ (NPs) precursor, reducing agent, respectively. obtained nanocomposite material morphologically characterized electron microscopy. In addition, evaluation ions’ sorption, pseudo-first-order, pseudo-second-order...
Human hair is considered a ubiquitous waste product and its accumulation can cause environmental problems. Hence, the search for alternatives that take advantage of this as new raw material interest, contributes to idea circular economy. In study, chemically modified human was used low cost biosorbent removal heavy metal ions from aqueous solutions. The effect contact time, pH, concentration on biosorption process were investigated. Kinetic modeling indicated pseudo-second order kinetic...
Hydroxylated polycyclic aromatic hydrocarbons (OH-PAHs), a group of metabolites produced during the biodegradation PAHs by microorganisms, are known to be difficult analyze from complex environmental or biological matrices. In field contaminated soils, where OH-PAHs less studied, new method was compared common for analysis monohydroxylated PAH metabolites: 2-naphthol, 2-hydroxyfluorene, 9-phenanthrol and 1-hydroxypyrene. After optimizing microwave assisted extraction (MAE) step, obtained...
Monitoring water quality has become a goal to prevent issues related human health and environmental conditions. In this sense, the concentration of metal ions in sources is screened, as these are considered persistent contaminants. work, we describe implementation customized graphite electrodes decorated with two types Hg nanoparticles (Hg-NPs), optimized toward electrochemical detection Cd, Pb Cu. Here, combine Hg, well-known property form alloys other metals, nanoscale features Hg-NPs,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVitamin B12 derivatives as anion carriers in transport through supported liquid membranes and correlation with their behavior ion-selective electrodesCristina. Palet, Maria. Munoz, Sylvia. Daunert, Leonidas G. Bachas, Manuel. ValienteCite this: Anal. Chem. 1993, 65, 11, 1533–1536Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June...
A method for the determination of total metal ion concentration in samples unknown composition after separation on a chelating resin was applied to aluminium(III) real freshwater samples, using Chelex 100 as sorbing resin. The method, called titration, previously tested synthetic and allows also evaluation side reaction coefficient [αM(I)] presence resin, which is useful study speciation. To obtain this information, sorption equilibria under experimental conditions must be exactly known....
Cadmium pollution is a serious environmental issue that has an impact on both the ecosystem and human health. As result, its removal from water essential. Agro-industrial wastes are suggested as sustainable adsorbent option, they among most readily available renewable sources worldwide. Biochar carbonized biomass been shown to be viable novel adsorbent. This article compares results of cadmium adsorption biochars derived wood industry craft beer production wastes. Biochars were characterized...
Abstract In this work, chiral activated membranes have been tested for the enantioseparation of racemic drug propranolol. Polysulfone (PS)‐based prepared purpose, using N‐hexadecyl‐L‐hydroxyproline (HHP) and L‐di‐n‐dodecyltartrate (L‐DDT) as carriers, respectively. Kinetic experiments carried out a membrane module with two rectangular channels separated by membrane, which allows well‐defined hydrodynamics feed stripping phases. Propranolol transport across depends on its diffusion rate from...